A catalytic composite film of MoS2/graphene flake as a counter electrode for Pt-free dye-sensitized solar cells

被引：140

作者：

Yue, Gentian ^{[1
,2
]}

Lin, Jeng-Yu ^{[2
]}

Tai, Sheng-Yen ^{[2
]}

Xiao, Yaoming ^{[1
,2
]}

Wu, Jihuai ^{[1
]}

机构：

[1] Huaqiao Univ, Inst Mat Phys Chem, Quanzhou 362021, Peoples R China

[2] Tatung Univ, Dept Chem Engn, Taipei 104, Taiwan

来源：

ELECTROCHIMICA ACTA | 2012年 / 85卷

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Molybdenum sulfide; Graphene flake; Counter electrode; Electrocatalytic activity; Dye-sensitized solar cell; LOW-COST; GRAPHENE; MOS2; PLATINUM; NANOMATERIAL; PERFORMANCE; DISULFIDE; MONOLAYER;

D O I：

10.1016/j.electacta.2012.08.040

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, a composite film of molybdenum sulfide (MoS2)/graphene flake was characterized as the counter electrode (CE) for Pt-free dye-sensitized solar cells (DSSCs). It was found that the enhanced electrocatalytic activity can be demonstrated when high-conductive graphene flake was introduced into MoS2 film. The cyclic voltammograms showed that the cathodic current density of MoS2/graphene CE was higher than those of MoS2, graphene and Pt CEs due to its lamellar structure. Additionally, MoS2/graphene CE exhibited a low charge-transfer resistance of 2.17 Omega cm(2). After the optimization in the thickness of MoS2/graphene CE, the power conversion efficiency of the DSSC assembled with the optimized MoS2/graphene reached 5.98% under AM1.5 illumination of 100 mW cm(-2), which is comparable to that based on the Pt CE. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：162 / 168

页数：7

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