Indacenodithieno[3,2-b]thiophene-based broad bandgap polymers for high efficiency polymer solar cells

被引：44
|
作者：
Xu, Yun-Xiang [1 ]
Chueh, Chu-Chen [1 ]
Yip, Hin-Lap [1 ]
Chang, Chih-Yu [1 ]
Liang, Po-Wei [1 ]
Intemann, Jeremy J. [1 ]
Chen, Wen-Chang [2 ]
Jen, Alex K. -Y. [1 ]
机构：
[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
[2] Natl Taiwan Univ, Inst Polymer Sci & Engn, Dept Chem Engn, Taipei 106, Taiwan
来源：
POLYMER CHEMISTRY | 2013年 / 4卷 / 20期
关键词：
OPEN-CIRCUIT VOLTAGE; PHOTOVOLTAIC PERFORMANCE; CONJUGATED POLYMERS; CONVERSION EFFICIENCY; CHARGE-TRANSPORT; DONOR; COPOLYMERS; INDACENODITHIOPHENE; COMBINATION; DERIVATIVES;
D O I：
10.1039/c3py00121k
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 broad bandgap polymers, poly{(indacenodithieno[3,2-b] thiophene)- alt-[2,5-bis(thiophen-2-yl)thiazolo[5,4-d]thiazole-5,5'-diyl]} PIDTT-TzTz and poly{(indacenodithieno[3,2-b]thiophene)-alt-[2,5-bis(6-octylthieno[3,2-b] thiophen-2-yl)thiazolo[5,4-d]thiazole-5,50-diyl]} PIDTT-TzTz-TT, were designed and synthesized by copolymerizing the ladder-type indacenodithieno[3,2-b]thiophene (IDTT) donor with a thiazolothiazole (TzTz) acceptor. Both polymers possess moderate hole-mobilities of around similar to 10(-4) cm(2) V-1 s(-1). The polymer solar cells (PSCs) using PIDTT-TzTz-PC71BM as the active layer showed good power conversion efficiencies (PCEs as high as 5.53% and 5.90%) in both conventional and inverted devices, without using any solvent additives. These results demonstrate that these broad bandgap PIDTT-TzTz polymers have potential to be used as a front cell for polymer tandem cells.
引用
收藏
页码：5220 / 5223
页数：4
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