Title:
光電変換素子
Document Type and Number:
Japanese Patent JP5720180
Kind Code:
B2
Abstract:
The present invention provides a photovoltaic cell having a large short-circuit current density and a large photoelectric conversion efficiency. This photovoltaic cell comprises: a first electrode; a second electrode; and an active layer between the first electrode and the second electrode; wherein the active layer contains a compound having a structural unit represented by Formula (1): wherein Ar1 and Ar2 are the same as or different from each other and represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group, with at least one of Ar1 and Ar2 being a trivalent heterocyclic group; X1 and X2 are the same as or different from each other and represent —O—, —S—, —C(═O)—, —S(═O)—, —SO2—, —C(R50)(R51)—, —Si(R3)(R4)—, —N(R5)—, —B(R6)—, —P(R7)—, or —P(═O)(R8)—; R50, R51, R3, R4, R5, R6, R7, and R8 are the same as or different from each other and represent a hydrogen atom, a halogen atom, or a monovalent organic group; and X1 and Ar2 are bonded with atoms adjacent to each other on a ring that constitutes Ar1, and X2 and Ar1 are bonded with atoms adjacent to each other on a ring that constitutes Ar2.
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Inventors:
Yoshimura Lab
Kenichiro Oya
Takehito Kato
Kenichiro Oya
Takehito Kato
Application Number:
JP2010243449A
Publication Date:
May 20, 2015
Filing Date:
October 29, 2010
Export Citation:
Assignee:
Sumitomo Chemical Co., Ltd.
International Classes:
H01L51/42; C08G61/12; H01L29/786; H01L51/05; H01L51/30
Domestic Patent References:
| JP2006063334A | ||||
| JP2008109114A | ||||
| JP2004168999A | ||||
| JP2009506519A | ||||
| JP2009096950A |
Foreign References:
| WO2008044585A1 | ||||
| WO2007105386A1 |
Other References:
HUO,L. et al,Bandgap and Molecular Level Control of the Low-Bandgap Polymers Based on 3,6-Dithiophen-2-yl-2,5-dih,Macromolecules(Washington, DC, United States),2009年,Vol.42, No.17,p.6564-6571
XIAO,S. et al,Conjugated Polymers of Fused Bithiophenes with Enhanced π-Electron Delocalization for Photovoltaic,Macromolecules(Washington, DC, United States),2008年,Vol.41, No.15,p.5688-5696
XIAO,S. et al,Conjugated Polymers of Fused Bithiophenes with Enhanced π-Electron Delocalization for Photovoltaic,Macromolecules(Washington, DC, United States),2008年,Vol.41, No.15,p.5688-5696
Attorney, Agent or Firm:
Toru Nakayama
Toru Sakamoto
Toru Sakamoto