Title:
ORGANIC THIN FILM PHOTOELECTRIC CONVERTER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2007/029750
Kind Code:
A1
Abstract:
This invention aims to manufacture an organic thin film photoelectric converter in
the atmosphere while improving the photoelectric conversion efficiency and
durability of the photoelectric converter. A TiO2 hole blocking layer
formed by a wet method is provided between a photoelectric conversion layer and
an electrode. During the formation of the TiO2 hole blocking layer, the
TiO2 hole blocking layer is dried in the atmosphere, thereby being transformed
into amorphous. In addition, a PCBM/P3HT concentration gradient layer wherein
the PCBM concentration is increased near the TiO2 hole blocking layer
may be arranged between a PCBM/P3HT layer and the TiO2 hole blocking
layer. Consequently, the electric resistance in the region is reduced, thereby
suppressing current loss of the photoelectric converter to the minimum. Since
the concentration of PCBM, which is a conductive material, is high near the TiO2
hole blocking layer, electrons are likely to flow into the TiO2 hole
blocking layer. Consequently, this organic thin film photoelectric converter
of gradient structure has high photoelectric conversion efficiency and high
durability.
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Inventors:
YOSHIKAWA, Susumu (Kyoto University Gokasho, Uji-sh, Kyoto 11, 6110011, JP)
吉川 暹 (〒11 京都府宇治市五ヶ庄 国立大学法人京都大学エネルギー理工学研究所内 Kyoto, 6110011, JP)
UEHARA, Kaku (Kyoto University Gokasho, Uji-sh, Kyoto 11, 6110011, JP)
吉川 暹 (〒11 京都府宇治市五ヶ庄 国立大学法人京都大学エネルギー理工学研究所内 Kyoto, 6110011, JP)
UEHARA, Kaku (Kyoto University Gokasho, Uji-sh, Kyoto 11, 6110011, JP)
Application Number:
JP2006/317673
Publication Date:
March 15, 2007
Filing Date:
September 06, 2006
Export Citation:
Assignee:
Kyoto University (36-1, Yoshida-honmachi Sakyo-ku, Kyoto-sh, Kyoto 01, 6068501, JP)
国立大学法人京都大学 (〒01 京都府京都市左京区吉田本町３６番地１ Kyoto, 6068501, JP)
YOSHIKAWA, Susumu (Kyoto University Gokasho, Uji-sh, Kyoto 11, 6110011, JP)
吉川 暹 (〒11 京都府宇治市五ヶ庄 国立大学法人京都大学エネルギー理工学研究所内 Kyoto, 6110011, JP)
国立大学法人京都大学 (〒01 京都府京都市左京区吉田本町３６番地１ Kyoto, 6068501, JP)
YOSHIKAWA, Susumu (Kyoto University Gokasho, Uji-sh, Kyoto 11, 6110011, JP)
吉川 暹 (〒11 京都府宇治市五ヶ庄 国立大学法人京都大学エネルギー理工学研究所内 Kyoto, 6110011, JP)
International Classes:
H01L51/42
Attorney, Agent or Firm:
KOBAYASI, Ryohei (KOBAYASI PATENT & TRADEMARK, 7th Floor Hougen-Sizyokarasuma Building, 37, Motoakuozi-tyo, Higasinotouin Sizyo-sagaru, Simogyo-k, Kyoto-si Kyoto 91, 6008091, JP)
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