Syntheses of New 3,6-Carbazole-Based Donor/Acceptor Conjugated Copolymers for Optoelectronic Device Applications

被引：39
作者：
Lai, Mei-Hsiu [1 ]
Tsai, Jung-Hsun [1 ]
Chueh, Chu-Chen [1 ]
Wang, Chih-Feng [1 ]
Chen, Wen-Chang [1 ,2 ]
机构：
[1] Natl Taiwan Univ, Dept Chem Engn, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Inst Polymer Sci & Engn, Taipei 106, Taiwan
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2010年 / 211卷 / 18期
关键词：
acceptors; carbazoles; conjugated polymers; films; optoelectronics; LIGHT-EMITTING-DIODES; ALTERNATING FLUORENE/CARBAZOLE COPOLYMERS; FIELD-EFFECT TRANSISTORS; THIN-FILM TRANSISTORS; POLYMER SOLAR-CELLS; PHOTOVOLTAIC CELLS; ELECTROCHEMICAL PROPERTIES; ELECTRONIC-PROPERTIES; DONOR; CARBAZOLE;
D O I：
10.1002/macp.201000234
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The syntheses, properties, and optoelectronic device characteristics of four new 3,6-carbazole-based donor/acceptor conjugated copolymers are reported. Such copolymers are used to explore the effects of acceptor strength and backbone coplanarity on the electronic and optoelectronic properties. The optical bandgaps of the studied copolymers are PCzQ (2.29 eV) > PCzDTQ (1.91 eV) > PCzTP (1.75 eV) > PCzDTTP (1.49 eV), which are much smaller than the parent poly(3,6-carbazole). The power conversion efficiency of the photovoltaic cells fabricated from blends of copolymer/PC61BM or PC71BM reached 1.01 and 1.73% by varying the film thickness or blend ratio. The experimental results suggest the potential application of 3,6-carbazole acceptor conjugated copolymers in optoelectronic devices.
引用
收藏
页码：2017 / 2025
页数：9
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