Title:
PHOTOELECTRIC CONVERSION ELEMENT AND METHOD OF MANUFACTURING THEREOF
Document Type and Number:
WIPO Patent Application WO/2013/065621
Kind Code:
A1
Abstract:
Provided is an economical photoelectric conversion element that is provided with a photoelectric conversion layer for which morphology in the film thickness direction thereof is controlled by an inexpensive method, that exhibits high photoelectric conversion efficiency, and that has excellent photoelectric conversion performance. In the photoelectric conversion element, the photoelectric conversion layer is sandwiched between an anode and a cathode, wherein said photoelectric conversion layer comprises n-type organic semiconductors (3), and crystallized sections (1) and non-crystallized sections (2) of p-type semiconductive polymers that have, as the principal chain thereof, an annelation π-conjugated skeleton which includes at least one thiophene ring in the chemical structure thereof. The amount of sulfur atoms existing in the film-thickness direction of the photoelectric conversion layer is indicated by the following formula (1) (wherein a is the slope, and b is the intercept), which is a first approximate straight line in a graph that has the film thickness of the photoelectric conversion layer normalized as 1 plotted as the X axis, and has the maximum value of the amount of sulfur atoms existing in the film-thickness direction normalized as 1 plotted as the Y axis, and the absolute value of a is not less than 0.07 and not more than 1.2.
Y = aX + b . . . (1)
Inventors:
NAKAHARA ATSUHIRO (JP)
MIURA MASANORI (JP)
MIHARA ICHIRO (JP)
IZAWA TAKAFUMI (JP)
INAGAKI TAKUYA (JP)
SUGIOKA TAKASHI (JP)
FUJITA AKIO (JP)
OGI HIROYUKI (JP)
MIURA MASANORI (JP)
MIHARA ICHIRO (JP)
IZAWA TAKAFUMI (JP)
INAGAKI TAKUYA (JP)
SUGIOKA TAKASHI (JP)
FUJITA AKIO (JP)
OGI HIROYUKI (JP)
Application Number:
PCT/JP2012/077838
Publication Date:
May 10, 2013
Filing Date:
October 29, 2012
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
H01L51/42; H01L31/10
Domestic Patent References:
| WO2007011739A2 | 2007-01-25 | |||
| WO2008088595A2 | 2008-07-24 | |||
| WO2008093831A1 | 2008-08-07 |
Other References:
JONG HWAN PARK ET AL.: "Effect of Annealing Solvent Solubility on the Performance of Poly(3-hexylthiophene)/Methanofullerene Solar Cells", JOURNAL OF PHYSICAL CHEMISTRY C, vol. 113, no. 40, 8 October 2009 (2009-10-08), pages 17579 - 17584, XP055073542, DOI: doi:10.1021/jp9029562
YUN ZHAO ET AL.: "Solvent-vapor treatment induced performance enhancement of poly (3-hexylthiophene):methanofullerene bulk- heterojunction photovoltaic cells", APPLIED PHYSICS LETTERS, vol. 90, 23 January 2007 (2007-01-23), pages 043504, XP012095751
YUN ZHAO ET AL.: "Solvent-vapor treatment induced performance enhancement of poly (3-hexylthiophene):methanofullerene bulk- heterojunction photovoltaic cells", APPLIED PHYSICS LETTERS, vol. 90, 23 January 2007 (2007-01-23), pages 043504, XP012095751
Attorney, Agent or Firm:
KOMIYA, Yoshio et al. (JP)
Yoshio Komiya (JP)
Yoshio Komiya (JP)
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