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
复制
发表时间:
2012
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Fei Z
Fei Z
中科院分区:
--
文献类型:
--
作者:
Fei Z

文献摘要

参考文献

被引文献

相似文献

首次合成了一种四氟化的4,7-双(3,4-二氟噻吩-2-基)-2,1,3-苯并噻二唑单体,并将其与二噻吩并[3,2-B:2′,3 ′-d]锗摩尔通过Stille偶联聚合得到了一种具有高电离电位的低带隙聚合物。与非氟化类似物的直接比较表明,氟化导致电离电位增加,而光学带隙没有变化,并且增强了非氟化聚合物的聚集。这些期望的性质导致与PC 71 BM的共混物中的OPV器件性能的显著增强。
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.
DOI: 10.1021/ma202374c
发表时间: 2012-01-24
期刊: MACROMOLECULES
影响因子: 5.5
作者:
Fei, Zhuping;Kim, Youngju;Heeney, Martin
通讯作者: Heeney, Martin