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Isatylidene malononitrile derived acceptors for fullerene free organic solar cells
Dyes and Pigments ( IF 4.1 ) Pub Date : 2017-12-28 , DOI: 10.1016/j.dyepig.2017.12.054
Dong Zhao , Junyi Hu , Zhuangjun Liu , Bo Xiao , Xiaozhan Wang , Erjun Zhou , Qing Zhang

New electron withdrawing moieties derived from isatin and its thiophene analogue were successfully incorporated into A-D-A structured molecular acceptors for polymer solar cell applications. The optical absorption and electrochemical properties of the new materials were investigated. The new acceptors showed low LUMO energy level, broad absorption in visible and near IR region and good miscibility with polymer donor, PTB7-Th. The solar cell devices based on the new electron acceptors and polymer electron donor, PTB7-Th achieved moderate performances. This work indicates that isatin related structures can be useful building blocks for small molecular acceptors.



中文翻译:

异亚丙基丙二腈衍生的受体,用于不含富勒烯的有机太阳能电池

衍生自靛红及其噻吩类似物的新的吸电子部分已成功地掺入了ADA结构的分子受体中,用于聚合物太阳能电池应用。研究了新材料的光吸收和电化学性能。新的受体显示出较低的LUMO能级,在可见光和近红外区域具有广泛的吸收性以及与聚合物供体PTB7-Th的良好混溶性。基于新型电子受体和聚合物电子给体PTB7-Th的太阳能电池器件具有中等性能。这项工作表明,与伊斯兰相关的结构可能是小分子受体的有用构建基块。

更新日期:2017-12-28
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