Synthesis and Characterization of π-Conjugated Polymers Based on 2-arylbenzimidazole and 4,7-di-thiophene-2-yl-4,5,6,7-tetrahydro-benzo[1,2,5]thiadiazole

被引：3
作者：
Thu Trang Do [1 ]
Bae, Jun Huei [1 ]
Yoo, Seong Il [1 ]
Lim, Kwon Taek [2 ]
Woo, Han Young [3 ]
Kim, Joo Hyun [1 ]
机构：
[1] Pukyong Natl Univ, Dept Polymer Engn, Pusan 608739, South Korea
[2] Pukyong Natl Univ, Dept Image Syst Engn, Pusan 608739, South Korea
[3] Pukyong Natl Univ, Dept Cognomechatron Engn, Pusan 608739, South Korea
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2013年 / 581卷 / 01期
关键词：
2-arylbenzimidazole; benzothiadiazole; conjugated polymer; low band gap; SOLAR-CELLS;
D O I：
10.1080/15421406.2013.808145
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A newly designed 2-arylbenzimidazole derivative which plays a role of co-acceptor unit has been prepared for the synthesis of conjugated polymer. 2-arylbenzimidazole derivative has been incorporated into 4,7-dithiophen-2-yl-benzo(2,1,3)thiadiazole (TBT) and fluorene based alternating copolymers with different ratios of 5mol.% and 10mol.% named POFTBT-IMD5, POFTBT-IMD10, respectively. We also synthesized alternating copolymer of 9,9-dioctylfluorene and TBT (POFTBT) to compare physical properties. POFTBT-IMD5, POFTBT-IMD10 films showed absorption peaks at 559 and 555nm, respectively. The HOMO and LUMO energy levels of POFTBT-IMD5, POFTBT-IMD10 were -5.4/-3.84eV and -5.4/-3.81eV, respectively, which were similar to those of POFTBT (-5.3/-3.7eV).
引用
收藏
页码：31 / 37
页数：7
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