Thiophene fluorination to enhance photovoltaic performance in low band gap donor-acceptor polymers.
Thiophene fluorination to enhance photovoltaic performance in low band gap donor-acceptor polymers.
复制标题
噻吩氟化可增强低带隙供体-受体聚合物的光伏性能。
DOI:
10.1039/c2cc35079c
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Fei Z
中科院分区:
文献类型:
--
作者:
Fei Z
We report the first synthesis of a tetrafluorinated 4,7-bis(3,4-difluorothiophen-2-yl)-2,1,3-benzothiadiazole monomer and its polymerisation with dithieno[3,2-b:2′,3′-d]germole by Stille coupling to afford a low band gap polymer with a high ionisation potential. Direct comparison to the non-fluorinated analogue demonstrates that fluorination results in an increase in ionisation potential with no change in optical band gap, and enhanced aggregation over the non-fluorinated polymer. These desirable properties result in a significant enhancement in OPV device performance in blends with PC71BM.
影响因子:
5.5
作者:
Fei, Zhuping;Kim, Youngju;Heeney, Martin
通讯作者:
Heeney, Martin