Derivitization of pristine graphene for bulk heterojunction polymeric photovoltaic devices

被引：13
|
作者：
Ye, Lei [1 ]
Xiao, Ting [1 ]
Zhao, Ni [1 ]
Xu, Haihua [1 ]
Xiao, Yubin [1 ]
Xu, Jianbin [1 ]
Xiong, Yuzi [2 ]
Xu, Weijian [2 ]
机构：
[1] Chinese Univ Hong Kong, Dept Elect Engn, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R China
[2] Hunan Univ, Inst Polymer Sci & Engn, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 33期
关键词：
DIAZONIUM FUNCTIONALIZATION; CARBON; FILMS; EXFOLIATION; EFFICIENT; ELECTRODE; GRAPHITE; ANODES;
D O I：
10.1039/c2jm32729e
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this communication, we report a simple method for a covalent band-forming reaction to change the hybridization of carbon atoms from sp(2) to sp(3), to introduce a band gap in pristine graphene. Graphene with well-defined functionality was synthesized, and the resulting material was soluble in organic solvent. The LUMO of functionalized graphene was below the LUMO of poly(3-hexylthiophene) (P3HT) and close to that of [6,6]-phenyl C-61-butyric acid methyl ester (PCBM), indicating its suitability as an electron acceptor for organic photovoltaic (OPV) applications. We further show the P3HT/functionalized graphene composite as the active layer in a solar cell, with device efficiency of 1.1%.
引用
收藏
页码：16723 / 16727
页数：5
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