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WO2019004085A1 - Dispositif électronique - Google Patents

Dispositif électronique Download PDF

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Publication number
WO2019004085A1
WO2019004085A1 PCT/JP2018/023828 JP2018023828W WO2019004085A1 WO 2019004085 A1 WO2019004085 A1 WO 2019004085A1 JP 2018023828 W JP2018023828 W JP 2018023828W WO 2019004085 A1 WO2019004085 A1 WO 2019004085A1
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WIPO (PCT)
Prior art keywords
electrode
electronic device
molecule
organic material
liquid organic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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PCT/JP2018/023828
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English (en)
Japanese (ja)
Inventor
吉田　学
浩司 末森
尚志 中西
アビジット ゴッシュ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
National Institute for Materials Science
Original Assignee
National Institute of Advanced Industrial Science and Technology AIST
National Institute for Materials Science
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Application filed by National Institute of Advanced Industrial Science and Technology AIST, National Institute for Materials Science filed Critical National Institute of Advanced Industrial Science and Technology AIST
Priority to JP2019526867A priority Critical patent/JP6948036B2/ja
Publication of WO2019004085A1 publication Critical patent/WO2019004085A1/fr
Anticipated expiration legal-status Critical
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B47/00—Porphines; Azaporphines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H01G4/04—Liquid dielectrics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier

Definitions

  • the present invention relates to an electronic device, and more particularly to an electronic device using an organic material which is liquid at normal temperature.
  • Patent Document 1 includes a pair of substrates configured to be relatively movable while maintaining a state of facing each other, a plurality of electrets are arranged side by side on one of the pair of substrates, and a pair of electrodes on the other.
  • An electrostatic induction generator is disclosed in which a plurality of sets of electrodes are arranged side by side.
  • Patent Document 2 a polymer dispersed solution is applied to a counter electrode to a vibrating membrane of an electrostatic type electroacoustic exchange unit and then baked to form a polymer film on the counter electrode, and then the polymer film is electretized.
  • a method of manufacturing an electrostatic electroacoustic transducing unit is disclosed.
  • the present inventors are conducting research and development on electronic devices.
  • electronic devices with high arbitrary shape have high versatility, such as being applicable to wearable devices that can be worn on the human body. Therefore, improvement of the performance of the electronic device is desired.
  • An electronic device comprises a first electrode, a second electrode disposed to face the first electrode, and a room-temperature liquid organic material disposed between the first electrode and the second electrode.
  • the normal temperature liquid organic material contains charged molecules, and the charged molecules are ⁇ -conjugated molecules having two or more side chains, and the two or more side chains are between the ⁇ -conjugated molecules. It is bound to the ⁇ -conjugated molecule so as to inhibit the ⁇ - ⁇ interaction.
  • the performance of the electronic device can be improved.
  • FIG. 1 is a cross-sectional view of an electronic device of a first embodiment.
  • the electronic device of Embodiment 1 it is a graph which shows the operation result immediately after charging the molecule
  • 6 is a graph showing an operation result three days after charging a molecule contained in a room temperature liquid organic material in the electronic device of Embodiment 1.
  • FIG. 1 it is a graph which shows the operation result seven days after charging the molecule
  • FIG. 7 is a cross-sectional view of the electronic device of Embodiment 2;
  • it is a graph which shows the time change of the voltage output from AC power supply.
  • it is a graph which shows the time change of the vibration generated to an electrode.
  • it is a graph which shows the result of Fourier-transforming the time change of the vibration generate
  • FIG. 18 is a plan view of the electronic device of the third embodiment.
  • FIG. 14 is a cross-sectional view of the electronic device of the third embodiment.
  • FIG. 14 is a cross-sectional view showing an operation principle of the electronic device of the third embodiment.
  • FIG. 20 is a cross-sectional view of the electronic device of the fourth embodiment.
  • it is a graph which shows the operation result immediately after charging the molecule contained in the normal temperature liquid organic material.
  • the electret is a dielectric (insulator) that holds the charge semipermanently, and is made of a solid material.
  • An electret is manufactured by colliding electrons with a solid material by corona discharge or the like to charge the solid material. Since the electret is made of a solid material, it can hold the charge stably, but has a problem that it lacks flexibility.
  • ionic liquids and Electro-Conjugate Fluids are known as liquid (fluid) materials used in electronic devices.
  • ionic liquids like electrets, are not suitable for use as liquids that hold a single charge, because of the presence of counter ions.
  • the electro-conjugate fluid is a dielectric liquid having high insulation, and when a high voltage is applied to the electrode pair in a container filled with the fluid, a strong jet flow is generated between the electrodes.
  • the electro-conjugated fluid can not retain the charge when the applied voltage is removed. Therefore, a liquid that can hold a charge stably is desired.
  • the normal temperature liquid organic material EL of one embodiment shown in FIG. 1, FIG. 2, FIG. 6, FIG. 11 and FIG. 12 is made of .pi.-conjugated molecule having two or more side chains.
  • the two or more side chains are the same or different selected from the group consisting of a branched alkyl chain, an alkyl chain having a polymerization site at the end, an oligosiloxane chain, a fluorocarbon chain, an oligoethylene glycol chain, and derivatives thereof. It is a side chain.
  • Each of the two or more side chains is bonded to the ⁇ -conjugated molecule directly or via a substituent.
  • S is at least one substituent selected from the group consisting of an ether group, a methylene group, and a phenyl group.
  • the R 1 is a substituted or unsubstituted alkyl group consisting of 4 or more carbon atoms
  • the R 2 is a substituted or unsubstituted alkyl group consisting of 6 or more carbon atoms.
  • the number of carbon atoms of R1 may be smaller than the number of carbon atoms of R2.
  • R1 and R2 are selected from the group consisting of (Chemical Formula 2) below.
  • the two or more side chains are an alkyl chain having a polymerization site at the end.
  • n is 6 ⁇ n ⁇ 14 in all cases.
  • the two or more side chains are-(Si- Ra ( Rb )) n- H,-(Si- Ra ( Rb ) And n may be selected from the group consisting of n -SiH 3 and-(Si- Ra (R b )) n -Si (CH 3 ) 3 .
  • n is 2 ⁇ n ⁇ 10
  • the two or more side chains are the fluorocarbon chain
  • the two or more side chains are — (CF 2 ) n CF 3 (wherein n is 5 ⁇ n ⁇ 9). obtain.
  • the two or more side chains are the oligoethylene glycol chain
  • the two or more side chains are-(O-CH 2 -CH 2 ) n -OH or-(O-CH 2 -CH 2 ) N -OCH 3 (n is 2 ⁇ n ⁇ 10).
  • the ⁇ -conjugated molecule is porphyrin, phthalocyanine, oligo (p-) phenylenevinylene, naphthalene, anthracene, tetracene, pentacene, pyrene, azobenzene, stilbene, diallythene, oligophenylene, oligothiophene, oxazole dye, and the like It may be selected from the group consisting of derivatives.
  • the ⁇ -conjugated molecule is porphyrin, and the ⁇ -conjugated molecule having the two or more side chains is represented by the following (Chemical formula Including those represented by any of 3).
  • the ⁇ -conjugated molecule is anthracene
  • the ⁇ -conjugated molecule having the two or more side chains is represented by the following (Chemical formula 4) Including those represented by either.
  • the ⁇ -conjugated molecule is oligo (p-) phenylenevinylene, and the ⁇ -conjugated molecule having the two or more side chains is Including those represented by any one of (Chemical formula 5)
  • the ⁇ -conjugated molecule is fluorene
  • the ⁇ -conjugated molecule having the two or more side chains is represented by the following (Chemical formula 6) Including those represented (where n is a natural number greater than or equal to 1).
  • the ⁇ -conjugated molecule is stilbene, and the ⁇ -conjugated molecule having the two or more side chains is represented by the following (Chemical formula 7) Including what is represented.
  • the ⁇ -conjugated molecule is azobenzene
  • the ⁇ -conjugated molecule having the two or more side chains is represented by the following (Chemical formula 8) Including what is represented.
  • the ⁇ -conjugated molecule is pyrene
  • the ⁇ -conjugated molecule having the two or more side chains is represented by the following (Chemical formula 9) Including what is represented.
  • the position of the two or more side chains is not particularly limited, but is preferably the second and fifth or the third and fifth for ease of production.
  • the ⁇ -conjugated system molecule having specific two or more side chains including the molecule described above, the ⁇ - ⁇ interaction between the ⁇ -conjugated system molecules is inhibited by the two or more side chains.
  • the inhibition of the ⁇ - ⁇ interaction prevents the crystallization of ⁇ -conjugated molecules. Therefore, the ⁇ -conjugated system molecule having the two or more side chains becomes a liquid at normal temperature.
  • the ⁇ -conjugated molecule having the two or more side chains when it is positively or negatively charged, the charge is delocalized by the ⁇ -conjugated system. Therefore, the ⁇ -conjugated molecule having the two or more side chains can stably hold the charge. Further, in the ⁇ -conjugated system molecule having the two or more side chains, the ⁇ -conjugated system molecule located at the center is sterically protected by the two or more side chains. Therefore, the interaction between external factors such as oxygen and moisture and the ⁇ -conjugated molecule is inhibited.
  • the ⁇ - ⁇ interaction between the ⁇ -conjugated system molecules is inhibited by the two or more side chains. Therefore, the charge can be prevented from escaping from the charged molecule to the other molecule through the ⁇ - ⁇ interaction.
  • the ⁇ -conjugated system molecule having two or more side chains has both of the ability to stably hold the charge in the molecule and the ability to inhibit the interaction with the outside and not release the charge. . Therefore, by charging the ⁇ -conjugated system molecules having the two or more side chains constituting the normal temperature liquid organic material EL, the normal temperature liquid organic material EL including molecules capable of retaining electric charge for a long time can be provided. .
  • the molecule P1 has a glass transition temperature of ⁇ 13.6 ° C.
  • the molecule P1 is an ink material having a purple color.
  • the molecule P1 can also be a light emitter that emits red light upon ultraviolet excitation.
  • the molecule P1 can also function as an electron donor solvent or a liquid electron donor itself, it can constitute a photoelectric conversion element by using it with an electron acceptor.
  • the ⁇ -conjugated molecule is porphyrin, the two or more side chains are all branched alkyl chains, and the substituent S is a combination of a phenyl group and an ether group, and the following (Chemical formula 11), (Chemical formula 12) and There is a molecule represented by (Chemical formula 13).
  • the molecule represented by (Chemical Formula 11) is referred to as a molecule P2
  • the molecule represented by (Chemical Formula 12) is referred to as a molecule P3
  • the molecule represented by (Chemical Formula 13) is referred to as a molecule P4.
  • each of the branched alkyl chains (side chains) has an ether group as a substituent S, but the branched alkyl chains additionally share a phenyl group as a substituent S.
  • Such molecule P2 has the same characteristics as the molecule P1 described above.
  • the viscosity of molecule P2 is higher than that of molecule P1. This is due to van der Waals interactions between side chains. That is, it is shown that the viscosity of the normal temperature liquid organic material can be controlled by the selection of the ⁇ -conjugated molecule and the selection of the number or type of branched alkyl chains to be introduced into the selected ⁇ -conjugated molecule.
  • the quantum yield of molecule P2 is higher than that of molecule P1.
  • the molecule P2 maintains the excited state longer than the molecule P1. That is, the degree of steric inhibition of the ⁇ - ⁇ interaction of the ⁇ -conjugated molecule is adjusted by selecting the number or type of side chains to be introduced into the ⁇ -conjugated molecule, and the external factor (oxygen in air And water), and show that the excited state can be maintained for a long time.
  • each branched alkyl chain (side chain) has an ether group as a substituent S, and the branched alkyl chains further share a phenyl group as a substituent S. Also, branched alkyl chains are located at the 2- and 5-positions of the phenyl group.
  • Molecule P3 has a glass transition temperature of about -50 ° C and behaves as a Newtonian liquid. That is, it is shown that the porphyrin site is effectively sequestered by the introduced alkyl chain, and the degree of steric inhibition of the ⁇ - ⁇ interaction between porphyrin rings can be increased.
  • each branched alkyl chain (side chain) has an ether group as a substituent S, and the branched alkyl chains further share a phenyl group as a substituent S.
  • molecule P4 has branched alkyl chains located at the 3- and 5-positions of the phenyl group.
  • the viscosity of molecule P4 is about five times higher than that of molecule P3. This is due to van der Waals interactions between side chains.
  • the molecule P4 has a glass transition temperature of about -50.degree. Molecule P4 behaves as a non-Newtonian liquid.
  • liquid physical properties of the normal temperature liquid organic material can be controlled by the selection of the ⁇ -conjugated molecule and the selection of the number or type of branched alkyl chains introduced into the selected ⁇ -conjugated molecule.
  • a molecule in which a ⁇ -conjugated molecule is an oligo (p-) phenylenevinylene, two or more side chains are all branched alkyl chains, a substituent S is an ether, and satisfies the following (Formula 14) is preferable.
  • the molecules OPV1 to OPV4 are all molecules having a pale yellow color.
  • the molecules OPV1 to OPV4 can also be light emitters that emit blue light by ultraviolet excitation and electron beam excitation.
  • the molecules OPV1 to OP4 can function as an electron donor solvent or liquid electron donor itself as well as the molecules P1 and P2. Therefore, a photoelectric conversion element can be configured by using it with an electron acceptor. .
  • the quantum yield increases in the order of molecule OPV1 ⁇ molecule OPV2 ⁇ molecule OPV3 ⁇ molecule OPV4. Also in this case, the selection of the number or type of branched alkyl chains to be introduced into the ⁇ -conjugated molecule more sterically inhibits the ⁇ - ⁇ interaction of the ⁇ -conjugated molecule, resulting in isolation from external factors. Indicates that the excited state can be maintained for a long time.
  • the ⁇ -conjugated molecule is anthracene
  • the two or more side chains are all branched alkyl chains (hyperbranched or swallow tail)
  • the substituent S is an ether
  • a molecule satisfying the following (Formula 15) a normal temperature liquid organic material having a hyperbranched alkyl chain
  • the normal temperature liquid organic material having a swallow tail alkyl chain is referred to as a molecule ACN2.
  • the molecules ACN1 and ACN2 are all normal temperature liquid organic materials having a pale yellow color.
  • the molecule ACN1 and the molecule ACN2 can also be light emitters that emit blue light by ultraviolet excitation and electron beam excitation.
  • n is a natural number of 1 or more, preferably 5 or less.
  • the molecules FL2 and FL3 can be emitters that emit blue light by ultraviolet excitation and electron beam excitation. Also, the viscosity increases as n increases (ie, the molecule FL1 is the softest and harder as n increases). Also, the quantum yield tends to increase as n increases.
  • a molecule having three branched alkyl chains is called molecule STLB.
  • the molecule STLB is a colorless and transparent normal temperature liquid organic material, and the molecule STLB causes trans-cis isomerization by ultraviolet light irradiation.
  • a photosensitizer is required for the isomerization reverse reaction, it is advantageous for an information storage medium in which optical electronic information as a cis form is thermally stored stably.
  • a molecule with two branched alkyl chains is called molecule AZO.
  • the molecule AZO is a reddish brown normal temperature liquid organic material, and the molecule AZO causes trans-cis isomerization by irradiation with ultraviolet light.
  • it is advantageous for inducing a dynamic change associated with photoisomerization because an isomerization reverse reaction easily occurs by visible light such as room lighting.
  • the ⁇ -conjugated molecule is pyrene
  • the two or more side chains are all branched alkyl chains (swallow tail)
  • the substituent S is a combination of a phenyl group and an ether group, and the following (Formula 19) is satisfied
  • a molecule is preferred.
  • a molecule having two alkyl chains (swallow tails) is referred to as a molecule PY1
  • a molecule having eight swallow tail alkyl chains is referred to as a molecule PY2.
  • the molecule PY1 and the molecule PY2 are both normal temperature liquid organic materials having a transparent pale yellow color, and exhibit behavior of a Newtonian liquid.
  • the molecules PY1 and PY2 emit blue light by ultraviolet ray excitation and electron beam excitation. The emission wavelength at that time is observed on the longer wavelength side than the molecule PY2 because the molecule PY1 is formed as an excimer.
  • the room temperature liquid organic material EL used for the electronic device ED1 of the first embodiment, the electronic device ED2 of the second embodiment, and the electronic device ED3 of the third embodiment described later is a ⁇ -conjugated molecule having two or more side chains as described above. As long as it is, it may be comprised from any molecule
  • FIG. 1 is a schematic view of a manufacturing apparatus CD of a room temperature liquid organic material EL containing charged molecules.
  • the manufacturing apparatus CD of the normal temperature liquid organic material EL containing charged molecules is disposed at a predetermined distance from the plate-like electrode GE, the insulator IL disposed on the electrode GE, and the electrode GE and the insulator IL And a point-like (needle-like) electrode CE.
  • the insulator IL is a sample stage for placing a sample to be charged.
  • the manufacturing apparatus CD of the normal temperature liquid organic material EL containing charged molecules has a heater HT for heating the sample on the insulator IL via the electrode GE.
  • the electrode GE is grounded.
  • the electrode CE is made of tungsten wire.
  • the room temperature liquid organic material EL is placed on the insulator IL, and the room temperature liquid organic material EL is heated to about 150 ° C. by the heater HT.
  • the heater HT By heating the normal temperature liquid organic material EL, the fluidity of the normal temperature liquid organic material EL is enhanced, and it becomes easy to charge the molecules contained in the normal temperature liquid organic material EL.
  • the normal temperature liquid organic material EL containing charged molecules may be manufactured using, for example, an electrostatic gun.
  • the electrostatic gun is a spray gun in which a high voltage is applied to the injection port, and is used, for example, for electrostatic coating.
  • the sample stage is grounded, and a negative voltage is applied to the injection port.
  • the normal temperature liquid organic material EL is injected from the electrostatic gun toward the sample table, the molecules contained in the normal temperature liquid organic material EL are charged at the injection port of the electrostatic gun, and the normal temperature liquid organic material EL containing charged molecules Is applied to the sample table.
  • the normal temperature liquid organic material EL can be applied while being patterned by controlling the potential of the sample stage.
  • the normal temperature liquid organic material containing charged molecules is referred to as the normal temperature liquid organic material EL.
  • Means material EL Means material EL.
  • FIG. 2 is a cross-sectional view of the electronic device ED1 of the first embodiment.
  • the electronic device ED1 includes a plate-like electrode (first electrode) Ea1 and a plate-like electrode (second electrode) disposed opposite to the electrode Ea1 with a predetermined interval.
  • An electrode Eb1 and a normal temperature liquid organic material EL disposed between the electrode Ea1 and the electrode Eb1.
  • the normal temperature liquid organic material EL contains negatively charged molecule ELM.
  • the normal temperature liquid organic material EL is a highly viscous liquid and is disposed on the electrode Eb1.
  • the electronic device ED1 of the first embodiment also includes electrodes Ea2 and Eb2 and electrodes Ea3 and Eb3 having the same configuration as the electrodes Ea1 and Eb1.
  • the electrodes Ea1 and Eb1, the electrodes Ea2 and Eb2, and the electrodes Ea3 and Eb3 are disposed parallel to each other along the surface direction of the electrodes at a predetermined interval.
  • the electrodes Ea1, Ea2, Ea3, Eb1, Eb2, and Eb3 each have a wiring portion, and can be connected to an external device such as a voltmeter or a sensor via the wiring portion. .
  • the electronic device ED1 of the first embodiment includes a plurality of spacers SC, SC, SC, SC maintaining the distance between the electrodes Ea1, Ea2, Ea3 and the electrodes Eb1, Eb2, Eb3, the electrodes Ea1, Ea2, Ea3 and It has a support member PT1 to which one end of the spacers SC, SC, SC, SC is fixed, and a support member PT2 to which the electrodes Eb1, Eb2, Eb3 and the other ends of the spacers SC, SC, SC, SC are fixed.
  • the support members PT1 and PT2 are made of a flexible material, preferably polyurethane.
  • the electrodes Ea1, Ea2, Ea3, Eb1, Eb2, Eb3 are made of a flexible material, preferably conductive fibers.
  • the normal temperature liquid organic material EL is sealed in the space formed by the spacers SC, SC, SC, SC and the support members PT1, PT2. Therefore, in the electronic device ED1 of the first embodiment, the charged molecule ELM contained in the normal temperature liquid organic material EL can be prevented from coming into contact with oxygen and moisture in the air.
  • the electrodes having the same configuration as the electrodes Ea1 and Eb1 may be other than the electrodes Ea2 and Eb2 and the electrodes Ea3 and Eb3, and the illustration thereof is omitted.
  • the spacer SC is disposed in the support member PT2 to which the electrodes Eb1, Eb2, Eb3 are fixed, and then the room temperature liquid organic material EL is poured to A support member PT1 to which Ea2 and Ea3 are fixed is attached to the spacer SC so as to face the support member PT2 and completed.
  • the electronic device ED1 of the first embodiment can also be manufactured as follows.
  • the electrodes Eb1, Eb2 and Eb3 are fixed to the support member PT2, and the room temperature liquid organic material EL containing the negatively charged molecules ELM in this state is applied to the side of the support member PT2 on which the electrodes Eb1, Eb2 and Eb3 are fixed. Thereafter, when a positive potential is applied to the electrodes Eb1, Eb2 and Eb3, the room temperature liquid organic material EL containing negatively charged molecules ELM is attracted to the electrodes Eb1, Eb2 and Eb3, and arranged on the electrodes Eb1, Eb2 and Eb3. .
  • the electronic device ED1 of the first embodiment is completed by sequentially attaching the support member PT1 having the spacer SC and the electrodes Ea1, Ea2, Ea3 fixed thereto to the support member PT2.
  • the normal temperature liquid organic material EL is a liquid and contains the charged molecule ELM, it can be patterned by the electrical method as described above.
  • the normal temperature liquid organic material EL disposed on the side of the electrode Eb1 contains negatively charged molecules ELM. Therefore, a positive charge is induced on the electrode Ea1 facing the electrode Eb1.
  • the electrode Ea1 approaches while being deformed to the electrode Eb1 side.
  • the capacitance between the electrode Ea1 and the electrode Eb1 increases, and the amount of charge induced in the electrode Ea1 increases. That is, the potential difference generated between the electrode Ea1 and the electrode Eb1 gradually increases as the support member PT1 is pushed.
  • the support member PT1 and the electrode Ea1 return to their original positions, and the electrode Ea1 moves away from the electrode Eb1 side.
  • the capacitance between the electrode Ea1 and the electrode Eb1 decreases, and the charge amount induced in the electrode Ea1 decreases. That is, the potential difference generated between the electrode Ea1 and the electrode Eb1 gradually decreases as the support member PT1 returns to its original position without stopping pressing the support member PT1.
  • the electronic device ED1 of the first embodiment can generate an electromotive force between the electrode Ea1 and the electrode Eb1 by changing the relative distance between the electrode Ea1 and the electrode Eb1, and, for example, a touch sensor Etc. can be used as a sensor or a generator.
  • the electrodes Ea1 and Eb1 have been described as an example, the electrodes Ea2 and Eb2 and the electrodes Ea3 and Eb3 operate similarly to the electrodes Ea1 and Eb1.
  • FIG. 3 is a graph showing an operation result immediately after charging the molecule ELM contained in the normal temperature liquid organic material EL in the electronic device ED1 of the first embodiment shown in FIG.
  • FIG. 4 is a graph showing an operation result three days after charging of the molecule ELM contained in the normal temperature liquid organic material EL in the electronic device ED1 of the first embodiment shown in FIG.
  • FIG. 5 is a graph showing an operation result seven days after the molecule ELM contained in the normal temperature liquid organic material EL is charged in the electronic device ED1 of the first embodiment shown in FIG.
  • FIGS. 3 to 5 in the electronic device ED1 of the first embodiment shown in FIG. 2, the support member PT1 is pushed toward the support member PT2, and immediately thereafter, the pushing of the support member PT1 is stopped. It is a graph showing the electrical potential difference between electrode Ea1 and electrode Eb1 at the time of performing operation repeatedly.
  • the aforementioned ⁇ -conjugated molecule is porphyrin, all of the two or more side chains are branched alkyl chains, and the substituent S is a combination of a phenyl group and an ether group ((Chemical formula A molecule consisting of a molecule P3 represented by 12) or a molecule P4 represented by (Chemical formula 13) was used.
  • the distance between the electrode Ea1 and the electrode Eb1 is shortened, and the capacitance between the electrode Ea1 and the electrode Eb1 is increased. Since the room temperature liquid organic material EL containing negatively charged molecules ELM is disposed on the electrode Eb1 side, when the capacitance between the electrode Ea1 and the electrode Eb1 becomes large, the positive charge is transferred from the outside to the electrode Ea1 side Flows in. Therefore, since the electrode Ea1 side has a negative potential with respect to the electrode Eb1, as shown in FIG. 3, it is considered that the peak PP in the downward direction (negative potential difference) is observed.
  • a downward peak is observed similarly to the above each time the support member PT1 is pushed to the support member PT2 side thereafter, and subsequently, it is upward. A peak was observed. Therefore, the charged molecule ELM contained in the normal temperature liquid organic material EL disposed on the electrode Eb1 side is considered to maintain its charged state even if the pressing operation of the support member PT1 is repeated. The change in peak intensity is considered to be due to the degree of pressing of the support member PT1.
  • the support member PT1 is moved to the support member PT2 side in the same manner as described above.
  • a downward peak (negative potential difference) peak PP was observed, and immediately thereafter, an upward (positive potential difference) peak PE was observed.
  • the support member PT1 is moved to the support member PT2 side as described above.
  • a downward peak (negative potential difference) peak PP was observed as in FIGS. 3 and 4, and immediately thereafter, an upward (positive potential difference) peak PE was observed.
  • the charged molecule ELM contained in the normal temperature liquid organic material EL maintains its charged state even 7 days after charging.
  • the ⁇ -conjugated system molecule having two or more side chains constituting the charged molecule ELM can stably hold the charge in the molecule, and inhibits the interaction between the molecules, thereby forming another molecule. It has both the property that the charge does not escape. Therefore, the results in FIG. 3 to FIG. 5 reflect that the charge can be held for a long period of time by charging the ⁇ -conjugated system molecules having the two or more side chains constituting the normal temperature liquid organic material EL. .
  • FIGS. 3 to 5 show the results of the normal temperature liquid organic material EL composed of the molecule P4, but similar results are obtained also for the molecule P3.
  • a charged solid material is used instead of the normal temperature liquid organic material EL, and an electronic device (not shown) whose other configuration is the same as the electronic device ED1 is examined. did. That is, this electronic device has a pair of electrodes facing each other and a solid material disposed between the pair of electrodes facing each other. This solid material is, for example, the aforementioned electret and is charged.
  • such an electronic device can be used, for example, as a sensor or a power generation device.
  • a sensor or a power generation device.
  • One possible method is to thicken the solid material.
  • solid materials that can be charged are highly insulative. Therefore, for example, when charging by corona discharge, electrons do not penetrate to the inside of the solid material, and only the surface can be charged. Therefore, even if the thickness of the solid material is increased in order to increase the amount of charge that can be held, the amount of charge that can be held reaches a plateau.
  • the electronic device ED1 of the first embodiment not the solid material but the normal temperature liquid organic material EL is used. Since the normal temperature liquid organic material EL contains the charged molecule ELM, the charge can be held not only on the surface of the normal temperature liquid organic material EL but also inside the normal temperature liquid organic material EL. As a result, in the electronic device ED1 of the first embodiment, by increasing the volume of the normal temperature liquid organic material EL, the sensitivity and the power generation efficiency can be easily improved as compared with the electronic device using the solid material described above.
  • such an electronic device be formed so as to be bendable and have an increased degree of freedom in shape. Therefore, in order to form the electronic device using the aforementioned solid material in a foldable manner, it is necessary to form the solid material in a foldable manner. For example, by forming a thin solid material in the form of a film, flexibility can be obtained. However, if the solid material is formed thin, the amount of charge that can be held by the solid material is reduced. If the solid material is made thicker to increase the amount of charge it can hold, it can not be made flexible. In addition, even if it is a flexible solid material, it may be plastically deformed and broken if the amount of deformation is large, such as expansion and contraction.
  • the liquid normal temperature liquid organic material EL is used in the electronic device ED1 of the first embodiment. Therefore, the normal temperature liquid organic material EL can be freely deformed and can follow external deformation. Furthermore, as described above, the amount of charge that can be held can be easily increased by increasing the volume of the normal temperature liquid organic material EL. Since the normal temperature liquid organic material EL is a liquid, it can be freely deformed even if its volume is increased.
  • the electronic device ED1 of the first embodiment by using the liquid normal-temperature liquid organic material EL instead of the solid material, it is possible to achieve both improvement in shape freedom of the electronic device and increase in the amount of holding charge. .
  • FIG. 6 is a cross-sectional view of the electronic device ED2 of the second embodiment.
  • the electronic device ED2 of the second embodiment includes a plate-like electrode Ea, a plate-like electrode Eb disposed opposite to the electrode Ea with a predetermined distance, an electrode Ea, and an electrode Eb. And a normal temperature liquid organic material EL disposed therebetween.
  • the normal temperature liquid organic material EL contains negatively charged molecule ELM.
  • the normal temperature liquid organic material EL is a highly viscous liquid and is disposed on the electrode Eb.
  • the electronic device ED2 according to the second embodiment includes an AC power supply PS that applies an AC voltage between the electrode Ea and the electrode Eb, and a vibration sensor VE that is attached to the electrode Ea and measures the vibration of the electrode Ea. doing.
  • the electronic device ED2 of the second embodiment is provided with a support member for supporting the electrodes Ea and Eb.
  • a sealing body is provided which holds the normal temperature liquid organic material EL placed on the electrode Eb.
  • the normal temperature liquid organic material EL disposed on the electrode Eb side contains negatively charged molecular ELM.
  • the room temperature liquid organic material EL containing the negatively charged molecule ELM and the electrode Ea attract each other.
  • the normal temperature liquid organic material EL containing negatively charged molecules ELM and the electrode Ea repel each other. Therefore, when an alternating current voltage is applied between the electrode Ea and the electrode Eb by the alternating current power supply PS, the electrode Ea vibrates in and out of the normal temperature liquid organic material EL, and the electrode Ea vibrates.
  • the electronic device ED2 of Embodiment 2 can take out the vibration which arises in electrode Ea1 outside. Therefore, the electronic device ED2 of the second embodiment can be used as, for example, a vibration generator, a speaker, or an ultrasonic wave generator.
  • FIG. 7 is a graph showing time change of the voltage output from the AC power supply PS in the electronic device ED2 of the second embodiment.
  • FIG. 8 is a graph showing time change of vibration generated in the electrode Ea in the electronic device ED2 of the second embodiment.
  • FIG. 9 is a graph showing the result of Fourier transform of the time change of the vibration generated in the electrode Ea in the electronic device ED2 of the second embodiment.
  • the aforementioned ⁇ -conjugated molecule is porphyrin, all of the two or more side chains are branched alkyl chains, and the substituent S is a combination of a phenyl group and an ether group ((Chemical formula A molecule consisting of a molecule P3 represented by 12) or a molecule P4 represented by (Chemical formula 13) was used.
  • the charge potential of the normal temperature liquid organic material EL disposed on the electrode Eb is -330 V.
  • the AC power supply PS has an inverter, and outputs an AC voltage with a maximum value of 200 V and a frequency of 500 Hz.
  • FIG. 8 shows the result of measurement of vibration generated in the electrode Ea by the vibration sensor VE by applying an AC voltage shown in FIG. 7 between the electrode Ea and the electrode Eb by the AC power supply PS.
  • FIG. 7 to FIG. 9 show the results of the normal temperature liquid organic material EL composed of the molecule P4, but the same result is obtained for the molecule P3.
  • an electronic device (not shown) whose other configuration is the same as that of the electronic device ED2 using a charged solid material instead of the normal temperature liquid organic material EL.
  • this electronic device has a pair of electrodes facing each other, a solid material disposed between the pair of electrodes facing each other, and an AC power supply for applying an AC voltage between the pair of electrodes.
  • This solid material is, for example, the aforementioned electret and is charged.
  • such an electronic device can be used, for example, as a vibration generator, a speaker or an ultrasonic generator.
  • the electronic device ED2 of the second embodiment not a solid material but a normal temperature liquid organic material EL is used. Since the normal temperature liquid organic material EL contains the charged molecule ELM, the charge can be held not only on the surface of the normal temperature liquid organic material EL but also inside the normal temperature liquid organic material EL. As a result, in the electronic device ED2 of the second embodiment, by increasing the volume of the normal temperature liquid organic material EL, the sensitivity and the power generation efficiency can be easily improved as compared with the electronic device using the solid material described above.
  • the electronic device ED2 of the second embodiment similarly to the electronic device ED1 of the first embodiment, also in the electronic device ED2 of the second embodiment, from the viewpoint of improving the convenience, it is desired that the electronic device ED2 be formed to be bendable to enhance the shape freedom. As described above, it has been difficult to simultaneously form a thin solid material and increase the amount of charge that can be held. On the other hand, in the electronic device ED2 of the second embodiment, by using the liquid normal temperature liquid organic material EL instead of the solid material, it is possible to achieve both improvement in shape freedom of the electronic device and increase in the holding charge amount. it can.
  • FIG. 10 is a cross-sectional view of the electronic device ED100 of the study example.
  • the electronic device ED100 of the study example has a substrate BP, electrodes Ec101, Ec102, Ec103, Ec104 disposed on the substrate BP, and electrodes Ec101, Ec102, Ec102, at a predetermined distance from the substrate BP. It has electrodes Ea101, Eb101, Ea102, and Eb102 disposed to face Ec103 and Ec104.
  • the electrode Ea101 and the electrode Ea102 are electrically connected.
  • the electrode Eb101 and the electrode Eb102 are electrically connected.
  • the electrodes Ea101, Eb101, Ea102, and Eb102 are arranged on the same plane at predetermined intervals from one another.
  • the electrodes Ea101 and Ea102 are supported by a spring member SP101, and the electrodes Eb101 and Eb102 are supported by a spring member SP102 so as to be movable parallel to the surface of the substrate BP. Although not shown, the electrodes Ea 101 and Ea 102 and the electrodes Eb 101 and Eb 102 are supported so as to move integrally.
  • the electrodes Ec101, Ec102, Ec103, and Ec104 are disposed on the substrate BP at predetermined intervals from one another.
  • Electret EL101 and electret EL102 are arranged on electrode Ec101 and electrode Ec103, respectively.
  • the electrets EL101 and EL102 are solid materials which are charged (negatively charged) and made of a patterned polymer film.
  • the width dimensions (length in the direction of the arrow in FIG. 10) of the electrodes Ea101, Eb101, Ea102, Eb102, the electrodes Ec101, Ec102, Ec103, Ec104, and the electrets EL101, EL102 are all the same.
  • the distance between the electrode Ea101 and the electrode Eb101 is the distance between the electrode Eb101 and the electrode Ea102, the distance between the electrode Ea102 and the electrode Eb102, the distance between the electrode Ec101 and the electrode Ec102, the distance between the electrode Ec102 and the electrode Ec103,
  • the distance between the electrode Ec 103 and the electrode Ec 104 is the same as each other.
  • the electrode Ea101, Eb101, Ea102, and Eb102 are moved along the substrate BP (the right direction of the arrow in FIG. 10) to make the electrode Ea101 face the electret EL101 on the electrode Ec101, the electrode Eb101 becomes the electrode Ec102.
  • the electrode Ea102 faces the electret EL102 on the electrode Ec103 and the electrode Eb102 faces the electrode Ec104, respectively.
  • the pair of electrodes Ea101, Eb101, Ea102, Eb102 is moved along the substrate BP (the left direction of the arrow in FIG.
  • the electrode Eb101 faces the electret EL101 on the electrode Ec101
  • the electrode Ea102 becomes the electrode Ec102
  • the electrode Eb102 faces the electret EL102 on the electrode Ec103, respectively.
  • one set of electrodes Ea101, Eb101, Ea102, Eb102 is moved along the substrate BP (in the direction of the right of the arrow in FIG. 10) and the electrode Ea101 is opposed to the electrode Ec102
  • the electrode Eb101 becomes the electret EL102 on the electrode Ec103
  • the electrode Ea102 faces the electrode Ec104, respectively.
  • the pair of electrodes Ea101, Eb101, Ea102, Eb102 and the electrodes Ec101, Ec102, Ec103, Ec104 are relatively moved by moving the pair of electrodes Ea101, Eb101, Ea102, Eb102.
  • the electrode Ea101 and the electret EL101 on the electrode Ec101 face each other, a charge (positive charge) of the opposite polarity to the charge (negative charge) charged on the electret EL101 is induced in the electrode Ea101.
  • the electrode Ea101 faces the electret EL101
  • the electrode Eb101 faces the electrode Ec102
  • the electrode Ea102 faces the electret EL102 on the electrode Ec103
  • the electrode Eb102 faces the electrode Ec104. Therefore, a charge (positive charge) of the opposite polarity to the charge (negative charge) charged in the electret EL 102 is induced in the electrode Ea102.
  • the electrode Eb101 and the electrode Eb102 face the grounded electrode Ec102 and the electrode Ec104, respectively, charge is not induced.
  • positive charges are induced in the electrodes Ea101 and Ea102, and no charges are induced in the electrodes Eb101 and Eb102. That is, the potential difference between the electrodes Ea101 and Ea102 and the electrodes Eb101 and Eb102 takes positive values with reference to the electrodes Eb101 and Eb102.
  • the electrodes Ea101 and Ea102 move away from the electrodes Ec101 and Ec103, respectively.
  • the capacitance is proportional to the area of the pair of opposing electrodes. Therefore, as the electrode Ea101 and the electrode Ea102 move away from the electrode Ec101 and the electrode Ec103, the capacitance between the electrode Ea101 and the electrode Ec101 and the capacitance between the electrode Ea102 and the electrode Ec103 are respectively It becomes smaller. That is, the amount of charge induced in the electrode Ea101 and the electrode Ea102 decreases.
  • the electrode Eb101 and the electrode Eb102 move away from the electrode Ec102 and the electrode Ec104, respectively, and approach the electrode Ec101 in which the electret EL101 is disposed and the electrode Ec103 in which the electret EL102 is disposed. Therefore, as the electrode Eb101 and the electrode Eb102 approach the electrode Ec101 and the electrode Ec103, the capacitance between the electrode Eb101 and the electrode Ec101 and the capacitance between the electrode Eb102 and the electrode Ec103 increase, respectively. To go. That is, the amount of charge induced in the electrode Eb101 and the electrode Eb102 increases.
  • the electrodes Ea101 and Ea102 approach the electrets EL101 and EL102 again by the restoring force of the spring members SP101 and SP102, and the electrodes Eb101 and Eb102 separate from the electrets EL101 and EL102 again.
  • an alternating voltage can be generated by periodically moving the electrodes Ea101, Ea102, Eb101, and Eb102 with respect to the electrets EL101 and EL102.
  • the electrets EL101 and EL102 thicker.
  • the electrets EL101 and EL102 are made of a solid material, as described above, even if the solid material is thickened in an attempt to increase the amount of charge that can be held, the amount of charge that can be held becomes a peak. Therefore, in the electronic device ED100 of the examination example, it is difficult to improve the power generation efficiency by increasing the amount of charge that can be held by the solid material.
  • FIG. 11 is a plan view of the electronic device ED3 of the third embodiment.
  • FIG. 12 is a cross-sectional view of the electronic device ED3 of the third embodiment.
  • the electronic device ED3 of the third embodiment is disposed so as to cover the electrode (first electrode) Ec, the electrode (second electrode) Ed, the electrode Ec, and the electrode Ed. And a normal temperature liquid organic material EL.
  • the electrode Ec is formed in a comb shape as a whole, and has a planar rectangular main body Ecm, and planar rectangular branches Ec1, Ec2, Ec3, and Ec4 branched from the main body Ecm.
  • the electrode Ed is formed in a comb-like shape as the electrode Ec, and has a main body portion Edm of a plane rectangular shape and branched portions Ed1, Ed2, Ed3, Ed4 of a plane rectangular shape branched from the body portion Edm. ing.
  • the branched portions Ec1, Ec2, Ec3, and Ec4 of the electrode Ec and the branched portions Ed1, Ed2, Ed3, and Ed4 of the electrode Ed extend in the longitudinal direction of the body portion Ecm of the electrode Ec and the body portion Edm of the electrode Ed. In each case, they are alternately arranged at predetermined intervals. That is, they are arranged in the order of the branch parts Ec1, Ed1, Ec2, Ed2,. Further, a diode D1 and an ammeter MA are connected between the electrode Ec and the electrode Ed.
  • the element connected between the electrode Ec and the electrode Ed is not limited to the diode D1 and the ammeter MA, and other elements may be connected.
  • the normal temperature liquid organic material EL is sealed in the sealing body SL.
  • the sealing body SL is made of a flexible insulator and preferably made of polyurethane. Therefore, when the sealing body SL is deformed, the normal temperature liquid organic material EL flows along the shape of the sealing body SL.
  • the sealing body SL is disposed on the branch portions Ec1, Ec2, Ec3, Ec4 of the electrode Ec and the branch portions Ed1, Ed2, Ed3, Ed4 of the electrode Ed, and the branch portions Ec1, Ec2, Ec3, Ec4 of the electrode Ec and the electrode It covers branch parts Ed1, Ed2, Ed3, and Ed4 of Ed.
  • the molecule ELM contained in the normal temperature liquid organic material EL is positively charged.
  • the charged molecule ELM contained in the normal temperature liquid organic material EL is the oxygen or moisture in the air. Contact can be prevented.
  • the normal temperature liquid organic material EL charges the molecule ELM by the method described above, and thereafter, is sealed in the sealing body SL.
  • the normal temperature liquid organic material EL can also charge the molecule ELM after being sealed in the sealing body SL, but in order to facilitate the process, the normal temperature liquid organic material EL is charged after the charging of the molecule ELM. It is preferable to enclose it inside.
  • FIG. 13 is a cross-sectional view showing the operation principle of the electronic device ED3 of the third embodiment.
  • FIG. 13 shows the electronic device ED3 of the third embodiment shown in FIG. 12 attached to, for example, a shoe sole (not shown), with the foot FT being disposed on the sealing body SL.
  • Branches Ec1, Ed1, Ec2, Ed2... Of the electrode Ec and the electrode Ed are aligned from the toe side (left side in FIG. 13) to the heel side (right side in FIG. 13) of the foot FT.
  • the potential difference proportional to the difference between the number of molecular ELMs present on the branch Ec1, Ec2, Ec3, Ec4 and the number of molecular ELMs present on the branch Ed1, Ed2, Ed3, Ed4 is equal to that of the electrode Ec. It occurs between the electrode Ed.
  • the number of molecular ELMs present on the branch portions Ec1, Ed1, Ec2, Ed2... Is the normal temperature liquid organic material EL on the branch portions Ec1, Ed1, Ec2, Ed2. Proportional to the volume of the In particular, in the case where the sealing body SL is disposed on the branch portions Ec1, Ed1, Ec2, Ed2,... And the normal temperature liquid organic material EL completely covers the branch portions Ec1, Ed1, Ec2, Ed2,.
  • the number of molecular ELMs present on the branch portions Ec1, Ed1, Ec2, Ed2... is proportional to the thickness of the sealing body SL on the branch portions Ec1, Ed1, Ec2, Ed2. Accordingly, in the upper part of FIG. 13, the number of molecules ELM increases from the heel side of the foot FT (right side in FIG. 13) to the toe side of the foot FT (left side in FIG. 13). Therefore, the sum of the number of molecule ELMs present on the branch parts Ec1, Ec2, Ec3 and Ec4 is larger than the sum of the number of molecule ELMs present on the branch parts Ed1, Ed2, Ed3 and Ed4.
  • the sum of the number of molecule ELMs present on the branch part Ed1, Ed2, Ed3, Ed4 is larger than the sum of the number of molecule ELMs present on the branch parts Ec1, Ec2, Ec3, Ec4. That is, since a charge (negative charge) of the opposite polarity to the charge (positive charge) charged in the molecule ELM is induced in the electrode Ed more than the electrode Ec, it is possible to prevent the charge between the electrode Ec and the electrode Ed. The potential difference takes a positive value with reference to the electrode Ed.
  • the diode D1 is connected between the electrode Ec and the electrode Ed.
  • the direction from the electrode Ec to the electrode Ed is the forward direction of the diode D1
  • the electrode Ec and the electrode A current flows between it and Ed and is observed by the ammeter MA. Therefore, in the electronic device ED3 of the third embodiment, a DC voltage can be generated by rectifying with the diode D1. Therefore, for example, by connecting the storage battery to the electronic device ED3 of the third embodiment, the generated electrical energy can be stored in the storage battery.
  • the room temperature liquid organic material EL sealed in the sealing body SL is disposed on the electrodes Ec and Ed.
  • the electronic device ED3 of the third embodiment is easier to manufacture and can reduce the manufacturing cost as compared with the electronic device ED100 of the examination example.
  • the normal temperature liquid organic material EL is a liquid
  • the normal temperature liquid organic material EL can be easily moved relative to the electrodes Ec and Ed.
  • the volume of the normal temperature liquid organic material EL existing on the electrodes Ec and Ed that is, the number (charge amount) of the charged molecule ELM is obtained by deforming the sealing body SL. It can be easily changed. Therefore, power can be generated efficiently by a simple operation of deforming the sealing body SL.
  • the normal temperature liquid organic material EL contains the charged molecule ELM
  • the electric charge not only to the surface of the normal temperature liquid organic material EL but also to the inside of the normal temperature liquid organic material EL Can be held.
  • many molecular ELMs can be held on the electrodes Ec and Ed by using the normal temperature liquid organic material EL enclosed in the sealing body SL.
  • the power generation efficiency can be enhanced as compared with the electronic device ED100 using an electret made of a solid material.
  • the normal temperature liquid organic material EL is a liquid. Regardless of the structure of the electrode, the electrode can be easily coated with the normal temperature liquid organic material EL.
  • FIG. 14 is a cross-sectional view of the electronic device ED4 of the fourth embodiment.
  • the electronic device ED4 of the fourth embodiment includes an electrode (first electrode) Ea, an electrode (second electrode) Eb disposed opposite to the electrode Ea with a predetermined distance, and an electrode It has the normal temperature liquid organic material EL arrange
  • the normal temperature liquid organic material EL contains negatively charged molecule ELM.
  • the support CL is disposed between the electrode Ea and the electrode Eb.
  • the support CL is made of a flexible material that can hold a liquid, preferably a fabric. Therefore, the normal temperature liquid organic material EL is disposed between the electrode Ea and the electrode Eb while being held by the support CL.
  • the support CL is made of a cloth
  • the normal temperature liquid organic material EL is held by the support CL in a state of being soaked in the cloth. Since the normal temperature liquid organic material EL is a highly viscous liquid, the normal temperature liquid organic material EL is held on the support CL without spreading in the support CL. Therefore, the normal temperature liquid organic material EL can be spaced apart and disposed in a plurality of regions of the support CL.
  • the electrodes Ea and Eb, the support CL, and the normal temperature liquid organic material EL are sealed by a sealing body SL. Therefore, in the electronic device ED4 of the fourth embodiment, the charged molecule ELM contained in the normal temperature liquid organic material EL can be prevented from contacting with oxygen or moisture in the air.
  • the sealing body SL is made of, for example, a polyurethane resin, a silicone resin, a rubber-based material, or the like by using a flexible material (a flexible and stretchable material).
  • the electrodes Ea and Eb are made of, for example, a thin metal film or a fiber on which a metal is vapor-deposited or plated. More specifically, the electrodes Ea and Eb are configured as stretchable electrodes in which, for example, silver-plated short fibers are attached to the sealing body SL.
  • the electrodes Ea and Eb each have a wiring portion, and can be connected to an external device such as a voltmeter or a sensor via the wiring portion.
  • the electrodes having the same configuration as the electrodes Ea and Eb may be present in addition to the electrodes Ea and Eb, and the illustration thereof is omitted.
  • a support CL disposed between the electrodes Ea and Eb holds a normal temperature liquid organic material EL containing negatively charged molecules ELM. Therefore, positive charges are induced on the electrodes Ea and Eb.
  • the sealing body SL is pressed and deformed along the thickness direction of the support body CL, the sealing body SL, the electrodes Ea and Eb, and the support body CL have flexibility, so the sealing is performed. While the body SL, the electrode Ea and the support CL are deformed respectively, the electrode Ea and the electrode Eb approach each other. As the relative distance between the electrode Ea and the electrode Eb decreases, the capacitance between the electrode Ea and the electrode Eb increases, and the amount of charge induced in the electrodes Ea and Eb increases. That is, the potential difference generated between the electrode Ea and the electrode Eb gradually increases as the sealing body SL is pushed.
  • the electronic device ED4 of the fourth embodiment can generate an electromotive force between the electrode Ea and the electrode Eb by changing the relative distance between the electrode Ea and the electrode Eb, and, for example, a touch sensor Etc. can be used as a sensor or a generator.
  • FIG. 15 is a graph showing an operation result immediately after charging the molecule ELM contained in the normal temperature liquid organic material EL in the electronic device ED4 of the fourth embodiment shown in FIG.
  • the sealing body SL is pressed and deformed along the thickness direction of the support CL, and immediately thereafter, the sealing body It is a graph showing the electrical potential difference between the electrode Ea and the electrode Eb at the time of performing repeatedly the operation
  • maintained at the support body CL is made into the electronic device ED101, and the result is collectively shown in FIG. That is, the difference between the electronic device ED101 and the electronic device ED4 is only the presence or absence of the normal temperature liquid organic material EL.
  • the aforementioned ⁇ -conjugated molecule is porphyrin, all of the two or more side chains are branched alkyl chains, and the substituent S is a combination of a phenyl group and an ether group ((Chemical formula A molecule consisting of a molecule P3 represented by 12) or a molecule P4 represented by (Chemical formula 13) was used.
  • the sealing body SL is pressed and deformed along the thickness direction of the support CL, the distance between the electrode Ea and the electrode Eb is shortened, and the capacitance between the electrode Ea and the electrode Eb is reduced. Becomes larger.
  • the electrode Ea when the electrode Ea is deformed, the distance between the electrode Ea and the normal temperature liquid organic material EL including the negatively charged molecules ELM is different from the distance between the electrode Eb and the normal temperature liquid organic material EL.
  • the electrode Ea side has a negative potential with respect to the electrode Eb, and as shown in FIG. 15, it is considered that the downward peak (negative potential difference) peak PP is observed.
  • FIG. 15 shows the result of the normal temperature liquid organic material EL composed of the molecule P4, the same result is obtained also for the molecule P3.
  • the normal temperature liquid organic material EL is used instead of the solid material as in the first to third embodiments. Since the normal temperature liquid organic material EL contains the charged molecule ELM, the charge can be held not only on the surface of the normal temperature liquid organic material EL but also inside the normal temperature liquid organic material EL. As a result, in the electronic device ED4 of the fourth embodiment, by increasing the volume of the normal temperature liquid organic material EL, the sensitivity and the power generation efficiency can be easily enhanced as compared with the electronic device using the solid material described above.
  • the electronic device ED4 of the fourth embodiment by using the liquid normal-temperature liquid organic material EL instead of the solid material, it is possible to achieve both improvement in shape freedom of the electronic device and increase in the amount of held charge.
  • the electrodes Ea and Eb, the support CL, and the sealing body SL have flexibility, so that the shape freedom is further increased compared to the first to third embodiments. It can be enhanced. And power can be generated efficiently by a simple operation of deforming the sealing body SL.
  • the electronic device ED4 of the fourth embodiment since the normal temperature liquid organic material EL is held by the support CL disposed between the electrode Ea and the electrode Eb, the electronic device ED100 of the examination example described above is As such, there is no need for a support structure to move the electrodes while maintaining the spacing between the electrodes and the electret. Therefore, the electronic device ED4 of the fourth embodiment is easy to manufacture as compared with the electronic device ED100 of the examination example, and the manufacturing cost can be reduced.
  • the present invention is applicable to various electronic devices such as sensors and power generators, and has industrial applicability.
  • CE electrode CL support D1 diode Ea electrode Ea1 electrode (first electrode) Ea101, Ea102 electrode Ea2, Ea3 electrode Eb electrode Eb1 electrode (second electrode) Eb101, Eb102 electrode Eb2, Eb3 electrode Ec electrode (first electrode) Ec1, Ec2, Ec3, Ec4 Branching portions Ec101, Ec102, Ec103, Ec104 Electrodes Ecm Body portions ED1, ED2, ED3 Electronic devices ED100, ED101 Electronic devices Ed Electrode (second electrode) Ed1, Ed2, Ed3, Ed4 Branching part Edm Body part EL Room temperature liquid organic material EL101, EL102 Electret FT foot GE electrode HT Heater IL Insulator MA Ammeter PS AC power supply PT1, PT2 Support member SC Spacer SL Sealing body SP101, SP102 Spring member VE Vibration sensor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

La présente invention améliore la performance d'un dispositif électronique. Selon la présente invention, un dispositif électronique comprend une première électrode Ea1, une seconde électrode Eb1 qui est agencée de manière à faire face à la première électrode Ea1, et un matériau électroluminescent organique qui est à l'état liquide à température normale, et qui est disposé entre la première électrode Ea1 et la seconde électrode Eb1. Le matériau électroluminescent organique qui est à l'état liquide à température normale contient des molécules électriquement chargées ELM qui sont des molécules π-conjuguées, dont chacune a deux ou plusieurs chaînes latérales; et les deux ou plusieurs chaînes latérales sont liées à la molécule π-conjuguée de manière à inhiber l'interaction π-π entre les molécules π-conjuguées.
PCT/JP2018/023828 2017-06-26 2018-06-22 Dispositif électronique Ceased WO2019004085A1 (fr)

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WO2025041688A1 (fr) * 2023-08-22 2025-02-27 国立大学法人東京農工大学 Film de polarisation équipé d'un substrat, élément générateur d'énergie par vibrations, élément électroluminescent organique et procédé de fabrication d'un film de polarisation équipé d'un substrat

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WO2012046849A1 (fr) * 2010-10-07 2012-04-12 独立行政法人物質・材料研究機構 Matériau organique liquide à température ambiante et son utilisation
JP2015002607A (ja) * 2013-06-14 2015-01-05 株式会社ビスキャス 振動発電体
JP2015192577A (ja) * 2014-03-28 2015-11-02 シチズンホールディングス株式会社 発電装置
WO2016114361A1 (fr) * 2015-01-16 2016-07-21 国立大学法人 東京大学 Élément de génération d'énergie à vibration

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Publication number Priority date Publication date Assignee Title
WO2012046849A1 (fr) * 2010-10-07 2012-04-12 独立行政法人物質・材料研究機構 Matériau organique liquide à température ambiante et son utilisation
JP2015002607A (ja) * 2013-06-14 2015-01-05 株式会社ビスキャス 振動発電体
JP2015192577A (ja) * 2014-03-28 2015-11-02 シチズンホールディングス株式会社 発電装置
WO2016114361A1 (fr) * 2015-01-16 2016-07-21 国立大学法人 東京大学 Élément de génération d'énergie à vibration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025041688A1 (fr) * 2023-08-22 2025-02-27 国立大学法人東京農工大学 Film de polarisation équipé d'un substrat, élément générateur d'énergie par vibrations, élément électroluminescent organique et procédé de fabrication d'un film de polarisation équipé d'un substrat

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