Pt-graphene electrodes for dye-sensitized solar cells

被引：18

作者：

Hoshi, Hajime ^{[1
]}

Tanaka, Shumpei ^{[1
]}

Miyoshi, Takashi ^{[1
]}

机构：

[1] Tokyo Univ Sci, Dept Appl Chem, Yamaguchi 7560884, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2014年 / 190卷

关键词：

Dye-sensitized solar cell; Graphene; Nanoparticle; COUNTER ELECTRODES; LOW-COST; EFFICIENCY; CONVERSION; FILMS; LIGHT;

D O I：

10.1016/j.mseb.2014.09.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple paste method for fabricating graphene films with Pt nanoparticles was developed. First, graphene pastes with Pt nanoparticles were prepared from commercially available graphene. The resulting films of graphene nanoplatelet aggregates with Pt nanoparticles (Pt-GNA) contained Pt nanoparticles distributed over the entire three-dimensional surface of the GNA. Then, the catalytic activity for the I-3(-)/I- redox reaction was evaluated by cyclic voltammetry. The GNA electrode exhibited higher activity than a graphene nanoplatelet electrode because of its higher effective surface area. Addition of Pt nanoparticles to the electrodes improved the catalytic activity. In particular, a large Faradaic current for the I-3(-)/I- reaction was observed for the Pt-GNA electrode. As the counter electrodes of dye-sensitized solar cells (DSSCs), their performance was consistent with the cyclic voltammetry results. In particular, the DSSC performance of the Pt-GNA electrode was superior to that of the Pt electrodes commonly used in DSSCs. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：47 / 51

页数：5

共 21 条

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