期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 34, 页码 14449-14457出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202002292
关键词
all-polymer solar cells; n-type acceptor-acceptor polymers; organic thin-film transistors; polymer molecular weight; stannylated bithiophene imide
资金
- Project of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation [PLN201807]
- Key Projects of Application Foundation in Sichuan Province [19YYJC1537]
- Junta de Andalucia [UMA18- FEDERJA-080]
- Shenzhen Science and Technology Innovation Commission [JCYJ20170817105905899, JCYJ20180504165709042]
- Innovative Research Foundation of Southwest Petroleum University [2019cxyb011]
- National Research Foundation (NRF) of Korea [NRF-2016M1A2A2940911, 2019R1A6A1A11044070]
- Center for Computational Science and Engineering at SUSTech
A distannylated electron-deficient bithiophene imide (BTI-Tin) monomer was synthesized and polymerized with imide-functionalized co-units to afford homopolymer PBTI and copolymer P(BTI-BTI2), both featuring an acceptor-acceptor backbone with high molecular weight. Both polymers exhibited excellent unipolar n-type character in transistors with electron mobility up to 2.60 cm(2) V-1 s(-1). When applied as acceptor materials in all-polymer solar cells, PBTI and P(BTI-BTI2) achieved high power-conversion efficiency (PCE) of 6.67 % and 8.61 %, respectively. The PCE (6.67 %) of polymer PBTI, synthesized from the distannylated monomer, is much higher than that (0.14 %) of the same polymer PBTI*, synthesized from typical dibrominated monomer. The 8.61 % PCE of copolymer P(BTI-BTI2) is also higher than those (<1 %) of homopolymers synthesized from dibrominated monomers. The results demonstrate the success of BTI-Tin for accessing n-type polymers with greatly improved device performance.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据