Platinum/graphene hybrid film as a counter electrode for dye-sensitized solar cells

被引:69
作者
Yue, Gentian [1 ]
Wu, Jihuai [1 ]
Xiao, Yaoming [1 ]
Huang, Miaoliang [1 ]
Lin, Jianming [1 ]
Fan, Leqing [1 ]
Lan, Zhang [1 ]
机构
[1] Huaqiao Univ, Inst Mat Phys Chem, Minist Educ, Engn Res Ctr Environm Friendly Funct Mat, Quanzhou 362021, Peoples R China
基金
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词
Platinum nanoparticles; Graphene nanosheets; Counter electrode; Dye-sensitized solar cell; ENHANCED PERFORMANCE; CARBON NANOTUBES; GRAPHENE; EFFICIENT; PLATINUM; MONOLAYER;
D O I
10.1016/j.electacta.2012.11.020
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
A platinum nanoparticles/graphene nanosheets (PtNP/GN) film was prepared on rigid fluorine-doped tin oxide substrate by using a facile one step electrochemical deposition method, and the film was used as counter electrode for dye-sensitized solar cell (DSSC). The cyclic voltammetry, 'electrochemical impedance spectroscopy and Tafel curves measurements indicated that the PtNP/GN CE has higher conductivity and better electrocatalytic activity for I-3(-)/I- redox reaction, lower charge transfer resistance on the electrolyte/electrode interface for I-3(-)/I- redox reaction than that of Pt electrode, which is due to that the synergistic effect combined platinum nanoparticles with graphene nanosheet intrinsic characteristic. As a result, the DSSC based on the PtNP/GN counter electrode achieved a high power conversion efficiency of 7.88% under AM1.5 illumination of 100 mW cm(-2), which is higher 21.04% than that of the DSSC based on Pt electrode. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:64 / 70
页数:7
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