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Title:
BLOCK COPOLYMER AND PHOTOELECTRIC CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2012/133794
Kind Code:
A1
Abstract:
Provided are: a conjugated block copolymer capable of increasing the amount of optical absorption by a photoelectric conversion active layer and controlling the morphology thereof and capable of achieving excellent photoelectric conversion efficiency; and a photoelectric conversion element comprising a composition including an electron-accepting material using this kind of conjugated block polymer. A pi-electron conjugated block copolymer is a pi-electron conjugated block copolymer having a polymer block (A) and a polymer block (B), said blocks comprising monomer units having at least one heterocyclic ring structure selected from a group comprising a fused-ring pi-conjugated structure including at least one thiophene ring in one part of the chemical structure thereof, a fluorene, a carbazole, a dibenzosilole, and a dibenzogermole; said polymer blocks (A and B) having different monomer units from each other.

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Inventors:
IZAWA TAKAFUMI (JP)
SHIBUYA HIROMASA (JP)
SUGIOKA TAKASHI (JP)
INAGAKI TAKUYA (JP)
MORIHARA YASUSHI (JP)
NAKAHARA ATSUHIRO (JP)
FUJITA AKIO (JP)
OGI HIROYUKI (JP)
Application Number:
PCT/JP2012/058618
Publication Date:
October 04, 2012
Filing Date:
March 30, 2012
Export Citation:
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Assignee:
KURARAY CO (JP)
IZAWA TAKAFUMI (JP)
SHIBUYA HIROMASA (JP)
SUGIOKA TAKASHI (JP)
INAGAKI TAKUYA (JP)
MORIHARA YASUSHI (JP)
NAKAHARA ATSUHIRO (JP)
FUJITA AKIO (JP)
OGI HIROYUKI (JP)
International Classes:
C08G61/12; C08K3/04; C08L65/00; H01L51/42
Domestic Patent References:
WO2010135701A12010-11-25
Foreign References:
JP2005120379A2005-05-12
JP2005076030A2005-03-24
JP2010507233A2010-03-04
JP2009506519A2009-02-12
JP2008208358A2008-09-11
JP2008266459A2008-11-06
Other References:
ABASAHEB V. PATIL, ET AL.: "Synthesis and Photovoltaic Properties of a Low-Band-Gap Copolymer of Dithieno[3,2-b:2',3'-d]thiophene and Dithienylquinoxaline", MACROMOLECULES, vol. 44, no. 6, 9 February 2011 (2011-02-09), pages 1238 - 1241, XP055129273
LIJUN HUO, ET AL.: "Bandgap and Molecular Level Control of the Low-Bandgap Polymers Based on 3,6-Dithiophen-2-yl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione toward Highly Efficient Polymer Solar Cells", MACROMOLECULES, vol. 42, 2009, pages 6564 - 6571, XP002550174
RYCEL UY, ET AL.: "Improved Synthesis of Thienothiazole and Its Utility in Developing Polymers for Photovoltaics", MACROMOLECULES, vol. 44, 3 November 2011 (2011-11-03), pages 9146 - 9154, XP055033808
ANGEW. CHEM. INT. ED, vol. 47, 2008, pages 58
ADV. MATER., vol. 22, 2010, pages E6
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ORGANOMETALLICS, vol. 30, 2011, pages 3233
ADV. MATER., vol. 21, 2009, pages 209
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ANGEW. CHEM. INT. ED., vol. 50, 2011, pages 1
J. AM. CHEM. SOC., vol. 133, 2011, pages 4250
MACROMOLECULES, vol. 43, 2010, pages 6936
See also references of EP 2692761A4
Attorney, Agent or Firm:
KOMIYA, Yoshio et al. (JP)
Yoshio Komiya (JP)
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