Moderately reduced graphene oxide/PEDOT:PSS as hole transport layer to fabricate efficient perovskite hybrid solar cells

被引:41
作者
Huang, Xu [1 ]
Guo, Heng [2 ]
Yang, Jian [2 ]
Wang, Kai [3 ]
Niu, Xiaobin [2 ]
Liu, Xiaobo [1 ]
机构
[1] Univ Elect Sci & Technol China, High Temperature Resistant Polymers & Composites, Inst Microelect & Solid State Elect, Res Branch Adv Funct Mat, Chengdu 610054, Peoples R China
[2] Univ Elect Sci & Technol China, Chengdu 610054, Peoples R China
[3] Univ Akron, Coll Polymer Sci & Polymer Engn, Akron, OH 44325 USA
关键词
Perovskite solar cells; Reduced graphene oxide; Hole transport layer; PERFORMANCE; OXIDE; RECOMBINATION; MORPHOLOGIES; REDUCTION;
D O I
10.1016/j.orgel.2016.10.013
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Graphene oxide (GO) with single layer was moderately reduced at 200 degrees C for 4 h under N-2. Then the moderately reduced graphene oxide (rGO) water solution was employed as an additive to tune the properties of conventional poly(ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) solution. It's found that the incorporation of rGO into PEDOT:PSS nearly did not change its transparency, hydrophilic property, or the surface roughness. So, the rGO/PEDOT:PSS composite was used as a hole transport layer (HTL) to fabricate perovskite solar cells (PSCs). As a result, PSCs with rGO/PEDOT:PSS as HTL exhibit improved power conversion efficiency than that of PSCs with PEDOT:PSS as HTL. Our findings show that moderately reduced rGO/PEDOT:PSS could be an efficient HTL to improve power conversion efficiency of PSCs. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:288 / 295
页数:8
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