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题名: Diketopyrrolopyrrole-based Conjugated Polymers Bearing Branched Oligo(Ethylene Glycol) Side Chains for Photovoltaic Devices
作者: Chen, Xingxing1, 2; Zhang, Zijian1, 2; Ding, Zicheng1; Liu, Jun1; Wang, Lixiang1
关键词: conjugated polymers ; dielectric constants ; oligo(ethylene glycol) ; side chains ; solar cells
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
发表日期: 2016-08-22
卷: 55, 期:35, 页:10376-10380
收录类别: SCI
英文摘要: Conjugated polymers are essential for solution-processable organic opto-electronic devices. In contrast to the great efforts on developing new conjugated polymer backbones, research on developing side chains is rare. Herein, we report branched oligo(ethylene glycol) (OEG) as side chains of conjugated polymers. Compared with typical alkyl side chains, branched OEG side chains endowed the resulting conjugated polymers with a smaller p-p stacking distance, higher hole mobility, smaller optical band gap, higher dielectric constant, and larger surface energy. Moreover, the conjugated polymers with branched OEG side chains exhibited outstanding photovoltaic performance in polymer solar cells. A power conversion efficiency of 5.37% with near-infrared photoresponse was demonstrated and the device performance could be insensitive to the active layer thickness.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35304
Appears in Collections:高分子物理与化学实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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