Synthesis of Thieno[3,4-b]pyrazine-Based and 2,1,3-Benzothiadiazole-Based Donor-Acceptor Copolymers and their Application in Photovoltaic Devices

被引：106

作者：

Zhou, Erjun ^{[1
]}

Cong, Junzi ^{[1
]}

Yamakawa, Shimpei ^{[2
]}

Wei, Qingshuo ^{[2
]}

Nakamura, Motoshi ^{[2
]}

Tajima, Keisuke ^{[2
]}

Yang, Chunhe ^{[1
]}

Hashimoto, Kazuhito ^{[1
,2
]}

机构：

[1] Japan Sci & Technol Agcy, HASHIMOTO, Light Energy Convers Project, ERATO, Tokyo, Japan

[2] Univ Tokyo, Dept Appl Chem, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

MACROMOLECULES | 2010年 / 43卷 / 06期

关键词：

POLYMER SOLAR-CELLS; BAND-GAP POLYMERS; ALTERNATING POLYFLUORENE COPOLYMER; OPEN-CIRCUIT VOLTAGE; CONJUGATED POLYMER; EFFICIENCY; PERFORMANCE; NETWORK;

D O I：

10.1021/ma100039q

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two kinds of thieno[3,4-b]pyrazine-based monomers, 2,3-dimethyl-5,7-di(2-bromothien-5-yl)-thieno[3,4-b]pyrazine and 2,3-dipheliyl-5,7-di(2-bromothien-5-yl)-thietlo[3,4-b]pyrazine, were synthesized via an improved synthetic route. These two monomers and 4,7-di(2-brothothien-5-yl)-2,1,3-benzothiadiazole were copolymerized with three donor segments (fluorene, carbazole, and indolocarbazole) separately by a Suzuki cross-coupling reaction to give six types of 5,7-dithien-2-yl-thieno[3,4-h]pyrazine (DTTP)-based donor-acceptor (D-A) copolymers (TPI-6) and three types of 5,7-dithien-2-yl-2,1,3-benzitguaduazole (DTBT)-based D-A copolymers (PF-DTBT, PC-DTBT, and PIC-DTBT). The optical properties, electrochemical behavior, and energy levels of these nine copolymers were investigated. The photovoltaic performance of the copolymers was compared and discussed considering their energy levels.

引用

页码：2873 / 2879

页数：7

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