Polymer solar cells employing conjugated polyelectrolytes with different countercations

被引：3
|
作者：
Shi, Yueqin [1 ]
Yang, Enxiang [1 ]
Zhang, Jun [1 ]
Ji, Zhenguo [1 ]
机构：
[1] Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Xiasha Higher Educ Zone, Hangzhou 310018, Zhejiang, Peoples R China
来源：
COLLOID AND POLYMER SCIENCE | 2019年 / 297卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Conjugated polyelectrolytes; Interlayer; Different countercations; Polymer solar cells; Power conversion efficiency; HIGH-EFFICIENCY; ACCEPTORS; ENHANCEMENT;
D O I：
10.1007/s00396-019-04550-1
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Conjugated polyelectrolytes based on benzotriazole (BT) and benzothiadiazole (BTz) alt unit with a pendant sulfonate ion but different countercations were synthesized and named PBTBTz-SO3Na and PBTBTz-SO(3)TBA. PBTBTz-SO3Na was used as a cathode interface applied to polymer solar cells (PSCs), and ITO/PEDOT:PSS/active layer/cathode interlayer/Al was set as a device structure. The PSCs displayed an average power conversion efficiency (PCE) of 7.7%, revealing an unchanged efficiency in comparison with that of the control device fabricated from a CH3OH interlayer. TBA(+), a different counteraction, was used instead of Na+ to further study the influence of counterions on the electrical property of PBTBTz-SO3-. PBTBTz-SO(3)TBA was used as a cathode interface to fabricate two types of PSCs based on PTB7:PC71BM and PBDB-T:ITIC, and their improved average PCEs were 8.6% and 9.1%, respectively.
引用
收藏
页码：1313 / 1319
页数：7
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