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Method for producing organic photoelectric conversion device and organic photoelectric conversion device

外国特許コード F110003822
整理番号 E07908WO
掲載日 2011年7月5日
出願国 アメリカ合衆国
出願番号 29918307
公報番号 20090308458
公報番号 9136489
出願日 平成19年5月1日(2007.5.1)
公報発行日 平成21年12月17日(2009.12.17)
公報発行日 平成27年9月15日(2015.9.15)
国際出願番号 JP2007059338
国際公開番号 WO2007126102
国際出願日 平成19年5月1日(2007.5.1)
国際公開日 平成19年11月8日(2007.11.8)
優先権データ
  • 特願2006-128541 (2006.5.2) JP
  • 特願2006-161374 (2006.6.9) JP
  • 特願2006-321475 (2006.11.29) JP
  • 2007JP059338 (2007.5.1) WO
発明の名称 (英語) Method for producing organic photoelectric conversion device and organic photoelectric conversion device
発明の概要(英語) The objects are to provide a method for producing a durable organic photoelectric conversion device by a coating process or to produce an organic photoelectric conversion device superior in photoelectric conversion characteristics to the conventional devices.
In the production method for an organic photoelectric conversion device including a substrate, a pair of electrodes which are formed on the substrate and at least one of which is transparent, and an active layer formed between the pair of electrodes, the active layer is formed by coating; and the active layer contains a pigment.
特許請求の範囲(英語) [claim1]
1. A method for producing an organic photoelectric conversion device including a substrate, a pair of electrodes which are formed on the substrate and at least one of which is transparent, and an active layer comprising an electron donor layer containing a pigment as an electron donor and an electron acceptor layer containing an electron acceptor and the active layer being formed between the pair of electrodes, wherein the pigment is at least one compound selected from the group consisting of porphyrin, pthalocyanine, and derivatives thereof, and
the method comprises forming the active layer by coating a latent pigment, converting the latent pigment into said pigment, and coating the electron acceptor.
[claim2]
2. The method for producing an organic photoelectric conversion device according to claim 1, wherein said pigment has a semiconductor characteristic.
[claim3]
3. The method for producing an organic photoelectric conversion device according to claim 1, comprising converting two or more kinds of said latent pigments into said pigment.
[claim4]
4. The method for producing an organic photoelectric conversion device according to claim 3, wherein the coating is performed with a mixture of said two or more kinds of latent pigments.
[claim5]
5. The method for producing an organic photoelectric conversion device according to claim 1, wherein the latent pigment is a benzoporphyrin compound of formula (I) or (II) having a bicyclo ring and the method comprises converting the benzoporphyrin compound into the benzoporphyrin compound as the electron donor by a heat conversion

wherein Zia and Zib, i is an integer of 1-4, independently of one another are a univalent atom or a univalent atomic group, but Zia and Zib may bind to each other to form a ring; R1-R4 independently of one another are a univalent atom or a univalent atomic group; and M is a divalent metal atom or an atomic group in which a trivalent or more metal atom binds to one or more other atoms.
[claim6]
6. The method for producing an organic photoelectric conversion device according to claim 5, wherein the latent pigment is a compound expressed by the following formula (III) or (IV)

wherein Zia and Zib, i is an integer of 1-4, independently of one another are a univalent atom or a univalent atomic group, but Zia and Zib may bind to each other to form a ring; R1-R4 independently of one another are a univalent atom or a univalent atomic group; Y1-Y4 independently of one another are a univalent atom or a univalent atomic group; and M is a divalent metal atom or an atomic group in which a trivalent or more metal atom binds to one or more other atoms.
[claim7]
7. The method for producing an organic photoelectric conversion device according to claim 5, comprising: forming a layer made of the latent pigment by coating;
forming the electron acceptor layer on the layer of the latent pigment; and
forming the electron donor layer by said heat conversion.
[claim8]
8. The method for producing an organic photoelectric conversion device according to claim 1, wherein said organic photoelectric conversion device is a solar cell.
[claim9]
9. The method for producing an organic photoelectric conversion device according to claim 5, wherein said organic photoelectric conversion device is a solar cell.
[claim10]
10. The method for producing an organic photoelectric conversion device according to claim 1, wherein the electron acceptor is a fullerene compound.
[claim11]
11. The method for producing an organic photoelectric conversion device according to claim 1, wherein said pair of electrodes are a positive electrode and a negative electrode, and a p-type semiconductor layer is formed between said positive electrode and said electron donor layer.
[claim12]
12. The method for producing an organic photoelectric conversion device according to claim 1, wherein said pair of electrodes are a positive electrode and a negative electrode, and an n-type semiconductor layer is formed between said negative electrode and said electron acceptor layer.
  • 発明者/出願人(英語)
  • ARAMAKI SHINJI
  • SATO YOSHIHARU
  • MITSUBISHI CHEMICAL
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
国際特許分類(IPC)
米国特許分類/主・副
  • 136/263
  • 257/E51.012
  • 257/E51.026
  • 438/82
参考情報 (研究プロジェクト等) ERATO NAKAMURA Functional Carbon Cluster AREA
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