JP2947588B2 - Organic solar cells - Google Patents
Organic solar cellsInfo
- Publication number
- JP2947588B2 JP2947588B2 JP2113036A JP11303690A JP2947588B2 JP 2947588 B2 JP2947588 B2 JP 2947588B2 JP 2113036 A JP2113036 A JP 2113036A JP 11303690 A JP11303690 A JP 11303690A JP 2947588 B2 JP2947588 B2 JP 2947588B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- solar cell
- organic solar
- film
- dye
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/30—Coordination compounds
- H10K85/311—Phthalocyanine
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/621—Aromatic anhydride or imide compounds, e.g. perylene tetra-carboxylic dianhydride or perylene tetracarboxylic di-imide
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/50—Photovoltaic [PV] devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Inorganic Chemistry (AREA)
- Electroluminescent Light Sources (AREA)
- Photovoltaic Devices (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は有機太陽電池に関し、詳しくは透明電極と対
向電極との間に有機化合物を主体とする層が設けられて
いる有機太陽電池に関する。The present invention relates to an organic solar cell, and more particularly, to an organic solar cell in which a layer mainly composed of an organic compound is provided between a transparent electrode and a counter electrode.
（従来の技術） 太陽電池材料として有機化合物を使用した有機太陽電
池は、無機半導体を使用した太陽電池に比べ、コスト、
大面積化、製造工程の容易さ等の点で優れており、従来
より、有機化合物が太陽電池材料として使用された種々
の構成の有機太陽電池が提案されている。(Prior art) An organic solar cell using an organic compound as a solar cell material is more cost-effective than a solar cell using an inorganic semiconductor.
Organic solar cells having various structures in which organic compounds are used as solar cell materials have been conventionally proposed because they are excellent in terms of an increase in area, easiness of a manufacturing process, and the like.
例えば、フタロシアニン銅とペリレン系色素の積層膜
を使用した有機太陽電池が提案されており、この有機太
陽電池のエネルギー変換効率は１％程度であると報告さ
れている（C.W.Tang,Applied Physical Letters,Vol.4
8,p.183）。しかし、太陽電池材料として色素のみを使
用した太陽電池は、電気抵抗を低くする必要性から、そ
の膜厚を薄くしなければならない。そのため膜にピンホ
ールが生じ易く、電極が短絡する欠点があった。For example, an organic solar cell using a laminated film of copper phthalocyanine and a perylene dye has been proposed, and the energy conversion efficiency of this organic solar cell is reported to be about 1% (CWTang, Applied Physical Letters, Vol. .Four
8, p. 183). However, a solar cell using only a dye as a solar cell material needs to have a small film thickness due to a need to reduce electric resistance. For this reason, there is a disadvantage that a pinhole is easily generated in the film and the electrode is short-circuited.
一方、導電性高分子を使用した有機太陽電池について
も研究が行なわれており、一対の電極間に共役系高分子
にて形成された層とを接合して配設した太陽電池が報告
されている。しかしながら、これらの材料を用いた有機
太陽電池のエネルギー変換効率は10-3％程度にとどまっ
ており、変換効率が低いという欠点を有していた。例え
ば、電解重合したポリ（３−メチルチオフェン）の層と
真空蒸着したローダミンＢの層の積層膜を使用した有機
太陽電池が報告されているが、この太陽電池のエネルギ
ー変換効率は金属電極による光吸収分を補正しても、2.
4×10-3％である（K.Uehara,A.Maekawa,M.Tanaka,Chemi
stry of Functional Dyes,p.576,Ed Z.Yoshida and T.K
itao（Mita Press,Tokyo,1980））。On the other hand, research is also being conducted on organic solar cells using conductive polymers, and a solar cell in which a layer formed of a conjugated polymer is bonded between a pair of electrodes and reported has been reported. I have. However, the energy conversion efficiency of organic solar cells using these materials is only about 10 −3 %, and has a drawback that the conversion efficiency is low. For example, an organic solar cell using a laminated film of a layer of poly (3-methylthiophene) electrolytically polymerized and a layer of rhodamine B vacuum-deposited has been reported. Even if the absorption is corrected, 2.
4 × 10 -3 % (K. Uehara, A. Maekawa, M. Tanaka, Chemi
stry of Functional Dyes, p.576, Ed Z. Yoshida and TK
itao (Mita Press, Tokyo, 1980)).
また、導電性高分子を使用した太陽電池として、ショ
ットキー型のものも報告されている。ここでは導電性高
分子の上にインジウム（In）、ガリウム（Ga）、アルミ
ニウム（Al）、銀（Ag）、鉛（Pb）、ゲルマニウム（G
e）等仕事関数の小さい金属を積層することによってシ
ョットキー接合を形成する手法がとられている。これら
の金属膜は蒸着やスパッタリング等の方法により形成さ
れるが、空気中の酸素により接合界面に酸化膜を形成し
やすく、接合が劣化して性能が低下するという欠点があ
った。A Schottky type solar cell using a conductive polymer has also been reported. Here, indium (In), gallium (Ga), aluminum (Al), silver (Ag), lead (Pb), germanium (G
e) A method of forming a Schottky junction by laminating metals having a small work function is adopted. These metal films are formed by a method such as vapor deposition or sputtering. However, there is a disadvantage that an oxide film is easily formed at the bonding interface by oxygen in the air, and the bonding is deteriorated to deteriorate the performance.
（発明が解決しようとする課題） 本発明は、上記欠点を解決するためになされたもので
あり、その目的は、エネルギー変換効率が高く、しかも
電極の短絡等の少ない、性能の安定した有機太陽電池を
提供することにある。(Problems to be Solved by the Invention) The present invention has been made in order to solve the above-mentioned drawbacks, and an object of the present invention is to provide an organic solar cell having high energy conversion efficiency, less short-circuit of electrodes, and stable performance. It is to provide a battery.
（課題を解決するための手段） 本発明で使用される透明電極は、可視光が透過可能な
公知の電極材料を用いて形成され、通常は透明基板の表
面に真空蒸着、スパッタリング、イオンプレーティング
等によって設けられる。(Means for Solving the Problems) The transparent electrode used in the present invention is formed using a known electrode material that can transmit visible light, and is usually vacuum-deposited, sputtered, ion-plated on the surface of a transparent substrate. And so on.
上記電極材料は、有機太陽電池の特性に与える影響が
小さい材料であれば特に限定されるものでなく、例え
ば、スズがドープされた酸化インジウム（ITO）、金（A
u）、銀（Ag）、アルミニウム（Al）等の半導体および
金属があげられる。特に効率よく光を入射させるために
は、可視光吸収の少ないITOが好適に使用される。The electrode material is not particularly limited as long as it has a small effect on the characteristics of the organic solar cell. For example, tin-doped indium oxide (ITO), gold (A
semiconductors and metals such as u), silver (Ag), and aluminum (Al). In order to make light incident particularly efficiently, ITO having little visible light absorption is preferably used.
上記透明基板としては、例えば、ガラスおよびアクリ
ル系、ビニル系、ポリオレフィン系、ポリエステル系、
ポリアミド系、ポリカーボネート系等の高分子があげら
れる。As the transparent substrate, for example, glass and acrylic, vinyl, polyolefin, polyester,
Examples of the polymer include polyamide-based and polycarbonate-based polymers.
本発明で使用される対向電極は、公知の電極材料を用
いて、真空蒸着、スパッタリング、イオンプレーティン
グ等により形成される。The counter electrode used in the present invention is formed by vacuum deposition, sputtering, ion plating or the like using a known electrode material.
上記電極材料としては、例えば、金（Au）、銀（A
g）、アルミニウム（Al）、スズがドープされた酸化イ
ンジウム（ITO）等の金属および半導体があげられ、特
に酸化の影響の少ないAuが好適に使用される。Examples of the electrode material include gold (Au) and silver (A
g), aluminum (Al), metals such as indium oxide (ITO) doped with tin, and semiconductors, and Au, which is less affected by oxidation, is particularly preferably used.
本発明の第１層に使用される正孔輸送層として作用す
る導電性高分子としては、例えば、ポリチオフェン、ポ
リピロール、ポリアセチレン、ポリフェニルアセチレ
ン、ポリアニリンおよびこれらの誘導体等があげられ、
ポリ（３−メチルチオフェン）およびポリ（３−メトキ
シチオフェン）が好適に使用される。これらの導電性高
分子には、導電度の高いドープ状態（導電度;10-1〜100
S/cm）にあるものと、導電度の低い脱ドープ状態（導電
度;10-8S/cm）にあるものとがあるが、脱ドープ状態に
あるものを使用するのがエネルギー変換効率が高く安定
性のよい有機太陽電池が得られるので好ましい。Examples of the conductive polymer serving as the hole transport layer used in the first layer of the present invention include polythiophene, polypyrrole, polyacetylene, polyphenylacetylene, polyaniline, and derivatives thereof.
Poly (3-methylthiophene) and poly (3-methoxythiophene) are preferably used. These conductive polymers have a high conductivity doped state (conductivity; 10 -1 to 100
S / cm) and those in the undoped state with low conductivity (conductivity; 10 -8 S / cm). The energy conversion efficiency is higher when using the undoped state. It is preferable because an organic solar cell having high stability can be obtained.
上記導電性高分子は、溶媒中において触媒の存在下で
モノマーを重合させる溶液重合法、触媒にモノマーガス
を接触させて重合させる気相重合法、モノマーを含む電
解溶液中においてモノマーを重合させる電解重合法等に
より調製することができる。そして、透明電極上で導電
性高分子を直接調製することにより上記第１層を形成し
てもよいし、また導電性高分子が溶媒に可溶性のもので
あれば、別途重合した高分子溶液を透明電極に塗布、乾
燥し上記第１層を形成してもよい。特に電解重合法によ
り透明電極表面に直接形成した上記第１層は、その表面
に凹凸を有しているので、本発明の第２層との接合の界
面面積を増大させることができ、且つ、ピンホールの少
ない積層膜が形成可能である。上記第１層の膜厚は特に
限定されるものではないが、薄すぎるとピンホールが発
生しやすくなり、厚すぎると光の吸収が大きくなるため
にエネルギー変換効率が低下するので、150〜1500Åが
好ましい。The conductive polymer is prepared by a solution polymerization method in which a monomer is polymerized in the presence of a catalyst in a solvent, a gas-phase polymerization method in which a monomer gas is brought into contact with a catalyst to perform polymerization, It can be prepared by a polymerization method or the like. Then, the first layer may be formed by directly preparing a conductive polymer on the transparent electrode. Alternatively, if the conductive polymer is soluble in a solvent, a separately polymerized polymer solution is used. The first layer may be formed by coating and drying the transparent electrode. In particular, since the first layer directly formed on the surface of the transparent electrode by the electrolytic polymerization method has irregularities on the surface, it is possible to increase the interface area of bonding with the second layer of the present invention, and A laminated film with few pinholes can be formed. The thickness of the first layer is not particularly limited. However, if the thickness is too small, pinholes are likely to be generated, and if the thickness is too large, energy absorption efficiency decreases because light absorption increases. Is preferred.
本発明の第２層で使用されるフタロシアニン系色素と
しては、例えば、無金属フタロシアニン、金属フタロシ
アニンおよびそれらの誘導体等があげられ、無金属フタ
ロシアニンおよび銅フタロシアニンが好適に使用され
る。第２層の形成方法としては、例えば、真空容器内で
坩堝中のフタロシアニン系色素を抵抗加熱して昇華さ
せ、上記第１層上にフタロシアニン系色素膜を形成する
真空蒸着法があげられる。Examples of the phthalocyanine dye used in the second layer of the present invention include metal-free phthalocyanine, metal phthalocyanine and derivatives thereof, and metal-free phthalocyanine and copper phthalocyanine are preferably used. As a method for forming the second layer, for example, there is a vacuum deposition method in which a phthalocyanine-based dye in a crucible is sublimated by resistance heating in a vacuum vessel to form a phthalocyanine-based dye film on the first layer.
上記第２層は、ごく薄い膜であっても十分な起電力を
生じさせることができ、膜中にピンホールを有していた
り、膜が不連続な状態になっていても同様の効果を発揮
する。その膜厚は特に限定されるものではないが、薄す
ぎると十分な起電力を生じさせることができなくなり、
厚すぎると光の吸収が大きくなるためにエネルギー変換
効率が低下するので、20〜100Åが好ましい。The second layer can generate a sufficient electromotive force even with a very thin film, and has the same effect even if the film has a pinhole or the film is in a discontinuous state. Demonstrate. Although the film thickness is not particularly limited, if it is too thin, a sufficient electromotive force cannot be generated,
If the thickness is too large, the light absorption increases and the energy conversion efficiency decreases.
本発明の第３層で使用されるペリレン系色素として
は、例えば、3,4,9,10−ペリレンテトラカルボン酸ビス
ベンゾイミダゾル、N,N′−ジメチル−3,4,9,10−ペリ
レンテトラカルボン酸ジイミド等があげられる。第３層
の形成方法としては、例えば、真空容器内で坩堝中のペ
リレン系色素を抵抗加熱して昇華させ、上記第２層上に
ペリレン系色素膜を形成する真空蒸着法があげられる。
上記第３層の膜厚は特に限定されるものではないが、薄
すぎるとピンホールが発生しやすくなり、厚すぎると膜
の電気抵抗が高くなるためにエネルギー変換効率が低下
するので、500〜2500Åが好ましい。Examples of the perylene dye used in the third layer of the present invention include, for example, 3,4,9,10-perylenetetracarboxylic acid bisbenzimidazole, N, N'-dimethyl-3,4,9,10- And perylenetetracarboxylic diimide. As a method for forming the third layer, for example, there is a vacuum deposition method in which a perylene-based dye in a crucible is sublimated by resistance heating in a vacuum vessel to form a perylene-based dye film on the second layer.
The thickness of the third layer is not particularly limited. However, if the thickness is too small, pinholes are likely to occur, and if the thickness is too large, the electric resistance of the film becomes high, and the energy conversion efficiency decreases. 2500 mm is preferred.
（作用） 本発明の有機太陽電池においては、透明電極と対向電
極間の透明電極側から順次導電性高分子からなる第１
層、フタロシアニン系色素からなる第２層およびペリレ
ン系色素からなる第３層が設けられており、第１層は正
孔輸送層として作用し、第２層は第１層と第３層との間
で、高い起電力を生じさせる接合層として作用し、第３
層は電子輸送層として作用するため、高いエネルギー変
換効率を有する有機太陽電池を得ることができる。(Operation) In the organic solar cell of the present invention, a first electrode made of a conductive polymer is sequentially formed from the transparent electrode side between the transparent electrode and the counter electrode.
A second layer made of a phthalocyanine dye and a third layer made of a perylene dye, wherein the first layer acts as a hole transport layer, and the second layer is formed of a first layer and a third layer. Acts as a bonding layer that generates a high electromotive force,
Since the layer functions as an electron transport layer, an organic solar cell having high energy conversion efficiency can be obtained.
（実施例） 以下、本発明を実施例により説明する。(Examples) Hereinafter, the present invention will be described with reference to examples.
実施例１ モノマーとして３−メチルチオフェン0.05モル／、
支持電解質として、過塩素酸テトラエチルアンモニウム
0.1モル／を含むニトロベンゼン溶液の中に、ITOを蒸
着した３×3cmのガラス基板を作用極、プラチナ電極を
対極としてそれぞれ設置し、定電流5mAを５秒間通電
し、過塩素酸がドープされたポリ（３−メチルチオフェ
ン）からなる膜を形成した。この膜に逆電圧を印加して
定電流5mAを３秒間通電することにより、過塩素酸を脱
ドープした後、メチルアルコールで洗浄し空気中で乾燥
させて膜厚500Åの中性のポリ（３−メチルチオフェ
ン）膜を形成した。Example 1 0.05 mol / mol of 3-methylthiophene as a monomer
Tetraethylammonium perchlorate as supporting electrolyte
In a nitrobenzene solution containing 0.1 mol /, a 3 × 3 cm glass substrate on which ITO was deposited was set as a working electrode and a platinum electrode were used as counter electrodes, and a constant current of 5 mA was supplied for 5 seconds, and perchloric acid was doped. A film made of poly (3-methylthiophene) was formed. By applying a reverse voltage to the film and applying a constant current of 5 mA for 3 seconds, the perchloric acid is dedoped, washed with methyl alcohol, and dried in air to form a neutral poly (3 -Methylthiophene) film was formed.
次いで、中性ポリ（３−メチルチオフェン）膜が形成
されたガラス基板を真空蒸着装置の真空容器内に設置し
て１×10-6Torrに減圧し、無金属フタロシアニンをアル
ミナ坩堝中に供給し抵抗加熱して、中性ポリ（３−メチ
ルチオフェン）膜の上に、40μｍの厚さで、無金属フタ
ロシアニンを蒸着した。Next, the glass substrate on which the neutral poly (3-methylthiophene) film was formed was placed in a vacuum vessel of a vacuum evaporation apparatus, and the pressure was reduced to 1 × 10 −6 Torr, and metal-free phthalocyanine was supplied into an alumina crucible. By heating with resistance, a metal-free phthalocyanine having a thickness of 40 μm was deposited on the neutral poly (3-methylthiophene) film.
さらにこの膜の上に、無金属フタロシアニンと同様に
して、2000Åの厚さで、3,4,9,10−ペリレンテトラカル
ボン酸ジイミドを蒸着した。Further, on this film, 3,4,9,10-perylenetetracarboxylic diimide was deposited in a thickness of 2000 mm in the same manner as for the metal-free phthalocyanine.
最後に対向電極としてAuを１×10-6Torrの減圧下で50
0Åの厚さに真空蒸着して、有機太陽電池を得た。Finally, Au is applied as a counter electrode under a reduced pressure of 1 × 10 −6 Torr for 50 minutes.
An organic solar cell was obtained by vacuum evaporation to a thickness of 0 mm.
得られた有機太陽電池の光電変換特性は、白色光（75
mW/cm2）の照射下で、エネルギー変換効率0.12％、開放
端電圧0.36V、電流0.81mA、フィルファクター31％であ
った。The photoelectric conversion characteristics of the obtained organic solar cell were white light (75
Under irradiation of mW / cm 2 ), the energy conversion efficiency was 0.12%, the open-circuit voltage was 0.36 V, the current was 0.81 mA, and the fill factor was 31%.
実施例２ 実施例１において、膜厚が30Åの無金属フタロシアニ
ン膜を形成した以外は、実施例１と同様にして、有機太
陽電池を得た。Example 2 An organic solar cell was obtained in the same manner as in Example 1, except that a metal-free phthalocyanine film having a thickness of 30 ° was formed.
得られた有機太陽電池の光電変換特性は、白色光（75
mW/cm2）の照射下でエネルギー変換効率0.16％、開放端
電圧0.31V、電流1.12mA、フィルファクター31％であっ
た。The photoelectric conversion characteristics of the obtained organic solar cell were white light (75
Under irradiation of mW / cm 2 ), the energy conversion efficiency was 0.16%, the open-circuit voltage was 0.31 V, the current was 1.12 mA, and the fill factor was 31%.
比較例１ 実施例１において、無金属フタロシアニン膜を取り去
った以外は、実施例１と同様にして、有機太陽電池を得
た。Comparative Example 1 An organic solar cell was obtained in the same manner as in Example 1, except that the metal-free phthalocyanine film was removed.
得られた有機太陽電池の光電変換特性は、白色光（75
mW/cm2）の照射下で、エネルギー変換効率0.06％、開放
端電圧0.34V、電流0.32mA、フィルファクター31％であ
った。The photoelectric conversion characteristics of the obtained organic solar cell were white light (75
Under irradiation of mW / cm 2 ), the energy conversion efficiency was 0.06%, the open-circuit voltage was 0.34 V, the current was 0.32 mA, and the fill factor was 31%.
（発明の効果） 本発明の有機太陽電池においては、第１層は正孔輸送
層として作用する導電性高分子にて形成され、その第１
層の上にフタロシアニン系色素からなる第２層およびペ
リレン系色素からなる第３層が順次積層されたものが電
極間に設けられているので、従来のように色素のみを電
極間に設けた有機太陽電池に比べて、ピンホールの少な
い均一な膜を形成することができ、電極間の短絡がない
性能の安定した有機太陽電池が作製可能となる。しか
も、第１層の正孔輸送層として作用する導電性高分子層
と第３層のペリレン系色素層との間に、高い起電力を発
生させることのできるフタロシアニン系色素からなる第
２層を設けることにより、従来の２層構造の太陽電池に
比べて、より高いエネルギー変換効率を得ることができ
る。(Effect of the Invention) In the organic solar cell of the present invention, the first layer is formed of a conductive polymer that functions as a hole transport layer.
Since a layer in which a second layer made of a phthalocyanine dye and a third layer made of a perylene dye are sequentially laminated on the layer is provided between the electrodes, an organic layer in which only the dye is provided between the electrodes as in the related art is provided. A uniform film having less pinholes can be formed as compared with a solar cell, and an organic solar cell with stable performance without short circuit between electrodes can be manufactured. In addition, a second layer made of a phthalocyanine dye capable of generating a high electromotive force is provided between the conductive polymer layer acting as a hole transport layer of the first layer and the perylene dye layer of the third layer. By providing the solar cell, higher energy conversion efficiency can be obtained as compared with a conventional two-layer solar cell.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) H01L 31/04 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) H01L 31/04
Claims (1)
次正孔輸送層として作用する導電性高分子からなる第１
層、フタロシアニン系色素からなる第２層およびペリレ
ン系色素からなる第３層が設けられていることを特徴と
する有機太陽電池。A first electrode made of a conductive polymer which acts as a hole transport layer sequentially from a transparent electrode side between a transparent electrode and a counter electrode;
An organic solar cell comprising a layer, a second layer made of a phthalocyanine dye, and a third layer made of a perylene dye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113036A JP2947588B2 (en) | 1990-04-27 | 1990-04-27 | Organic solar cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2113036A JP2947588B2 (en) | 1990-04-27 | 1990-04-27 | Organic solar cells |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0410576A JPH0410576A (en) | 1992-01-14 |
| JP2947588B2 true JP2947588B2 (en) | 1999-09-13 |
Family
ID=14601855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2113036A Expired - Fee Related JP2947588B2 (en) | 1990-04-27 | 1990-04-27 | Organic solar cells |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2947588B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2846371A1 (en) * | 2013-09-10 | 2015-03-11 | Ecole Polytechnique Fédérale de Lausanne (EPFL) | Inverted solar cell and process for producing the same |
| EP1234338B1 (en) * | 1999-11-26 | 2015-03-25 | The Trustees Of Princeton University | Organic photosensitive optoelectronic device with an exciton blocking layer |
| EP1952455B1 (en) * | 2005-11-02 | 2020-01-15 | The Trustees Of Princeton University | Organic photovoltaic cells utilizing ultrathin sensitizing layer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05308146A (en) * | 1992-05-01 | 1993-11-19 | Ricoh Co Ltd | Organic photovoltaic device |
| JP2001148491A (en) | 1999-11-19 | 2001-05-29 | Fuji Xerox Co Ltd | Photoelectric conversion element |
| TWI475737B (en) | 2006-03-08 | 2015-03-01 | Semiconductor Energy Lab | Light-emitting element, light-emitting device and electronic device |
| JP5084305B2 (en) * | 2006-03-08 | 2012-11-28 | 株式会社半導体エネルギー研究所 | LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AND ELECTRONIC DEVICE |
-
1990
- 1990-04-27 JP JP2113036A patent/JP2947588B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1234338B1 (en) * | 1999-11-26 | 2015-03-25 | The Trustees Of Princeton University | Organic photosensitive optoelectronic device with an exciton blocking layer |
| EP1952455B1 (en) * | 2005-11-02 | 2020-01-15 | The Trustees Of Princeton University | Organic photovoltaic cells utilizing ultrathin sensitizing layer |
| EP2846371A1 (en) * | 2013-09-10 | 2015-03-11 | Ecole Polytechnique Fédérale de Lausanne (EPFL) | Inverted solar cell and process for producing the same |
| WO2015036905A1 (en) * | 2013-09-10 | 2015-03-19 | Ecole Polytechnique Federale De Lausanne (Epfl) | Inverted solar cell and process for producing the same |
| CN105900255A (en) * | 2013-09-10 | 2016-08-24 | 洛桑联邦理工学院 | Inverted solar cell and process for producing the same |
| CN105900255B (en) * | 2013-09-10 | 2018-09-14 | 洛桑联邦理工学院 | It is inverted solar cell and for producing the method for being inverted solar cell |
| US10665800B2 (en) | 2013-09-10 | 2020-05-26 | Ecole Polytechnique Federate de Lausanne (EPFL) | Inverted solar cell and process for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0410576A (en) | 1992-01-14 |
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