Title:
PHOTOELECTRIC CONVERSION ELEMENT, PROCESS FOR PRODUCING THE SAME, LIGHT SENSOR AND SOLAR CELL
Document Type and Number:
WIPO Patent Application WO/2004/025738
Kind Code:
A1
Abstract:
A photoelectric conversion element for use in light sensors and solar cells. In particular, a photoelectric conversion element comprising a photoelectric conversion layer composed of an assembly of light-absorbing dendrimer structures (1) acting as an electron donor and metal fine particles (2) acting as an electron acceptor wherein the two components (1) and (2) have chemical affinity to each other so as to form the layer in a self-assembly fashion. In this photoelectric conversion element, the light-absorbing substance consists of dendrimer structures, so that electrons having been excited by light absorption undergo long-distance electron transfer via molecular chains and can reach the metal fine particles (2) acting as an electron acceptor. The electrons are quickly led outside as electric current through contact between metal fine particles and/or between metal fine particles and electrode.
Inventors:
ENOMOTO MASASHI (JP)
VOSSMEYER TOBIAS (DE)
VOSSMEYER TOBIAS (DE)
Application Number:
PCT/JP2003/011741
Publication Date:
March 25, 2004
Filing Date:
September 12, 2003
Export Citation:
Assignee:
SONY CORP (JP)
SONY INTERNAT EUROP G M B H (DE)
ENOMOTO MASASHI (JP)
VOSSMEYER TOBIAS (DE)
SONY INTERNAT EUROP G M B H (DE)
ENOMOTO MASASHI (JP)
VOSSMEYER TOBIAS (DE)
International Classes:
C09K3/00; H01L27/30; H01L31/04; H01L31/042; H01L31/08; H01L51/00; H01L51/10; H01L51/42; H01M14/00; (IPC1-7): H01L31/08; H01L31/042; H01M14/00
Foreign References:
| JP2002237611A | 2002-08-23 | |||
| JP2001320068A | 2001-11-16 | |||
| JPH1140871A | 1999-02-12 | |||
| JP2000336171A | 2000-12-05 |
Other References:
TASAKI T. ET AL.: "Preparation and photoelectrochemical properties of electrodes modified with alternately assembled porphyrin derivative-gold nano particles", CSJ: THE CHEMICAL SOCIETY OF JAPAN KOEN YOKOSHU, vol. 81, no. 1, 11 March 2002 (2002-03-11), pages 389, XP002964782
LAHAV M. ET AL.: "Assembly of a Zn(II)-porphyrin-bipyridinium dyad and Au-nanoparticles superstructures on conductive surfaces", J. AM. CHEM. SOC., vol. 121, 1999, pages 258 - 259, XP002964783
YAMADA S. ET AL.: "Gold nanoparticle-porphyrin self-assembled multistructures for photoelectric conversion", THIN SOLID FILMS, vol. 438-439, 2003, pages 70 - 74, XP004447966
KRASTEVA N. ET AL.: "Self-assembled gold nanoparticle/dendrimer composite films for vapor sensing applications", NANO LETTERS, vol. 2, no. 5, 2002, pages 551 - 555, XP002964784
LAHAV M. ET AL.: "Assembly of a Zn(II)-porphyrin-bipyridinium dyad and Au-nanoparticles superstructures on conductive surfaces", J. AM. CHEM. SOC., vol. 121, 1999, pages 258 - 259, XP002964783
YAMADA S. ET AL.: "Gold nanoparticle-porphyrin self-assembled multistructures for photoelectric conversion", THIN SOLID FILMS, vol. 438-439, 2003, pages 70 - 74, XP004447966
KRASTEVA N. ET AL.: "Self-assembled gold nanoparticle/dendrimer composite films for vapor sensing applications", NANO LETTERS, vol. 2, no. 5, 2002, pages 551 - 555, XP002964784
Attorney, Agent or Firm:
Koike, Akira (Yamato Seimei Bldg. 1-7, Uchisaiwai-cho 1-chom, Chiyoda-ku Tokyo, JP)
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