Graphene modified vanadium pentoxide nanobelts as an efficient counter electrode for dye-sensitized solar cells

被引：26

作者：

Lee, Minoh ^{[1
,2
]}

Balasingam, Suresh Kannan ^{[3
]}

Ko, Yohan ^{[1
]}

Jeong, Hu Young ^{[4
]}

Min, Byoung Koun ^{[2
,5
]}

Yun, Yong Ju ^{[1
]}

Jun, Yongseok ^{[1
]}

机构：

[1] Konkuk Univ, Dept Mat Chem & Engn, Seoul 143701, South Korea

[2] Korea Inst Sci & Technol, Clean Energy Res Ctr, Seoul 136791, South Korea

[3] Ulsan Natl Inst Sci & Technol UNIST, Dept Chem, Ulsan 689798, South Korea

[4] Ulsan Natl Inst Sci & Technol UNIST, Sch Mat Sci & Engn, Ulsan 689798, South Korea

[5] Korea Univ, Green Sch, Seoul 136713, South Korea

来源：

SYNTHETIC METALS | 2016年 / 215卷

关键词：

Dye-sensitized solar cells; Counter electrode; Vanadium pentoxide nanobelts; Graphene; V2O5; NANOWIRES; GRAPHITE OXIDE; REDUCTION; FILMS; NANOPARTICLES; GROWTH; COST; TEMPERATURE; FABRICATION; PROGRESS;

D O I：

10.1016/j.synthmet.2015.12.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Efficient dye-sensitized solar cells (DSSCs) were fabricated using graphene modified vanadium pentoxide nanobelts (GVNBs) as a cost-effective counter electrodes (CEs). GVNBs were synthesized by facile one-step hydrothermal method without using any reducing agent and harmful solvents. These novel nanocomposite have been tested as a counter electrode in DSSCs for the first time, which showed high solar to electrical energy conversion efficiency. The GVNBs showed the excellent electrocatalytic activity for the reduction of triiodide to iodide due to the synergetic effect between one-dimensional shape of vanadium pentoxide nanobelts and reduced graphene oxide. The DSSCs based on the GVNBs CEs have reached a high power conversion efficiency of 6.17%, which is comparable to that (7.98%) of the conventional platinum (Pt)-based CEs. This result indicate that GVNBs can be used as an alternative to conventional Pt-based CEs for the highly efficient DSSCs. (C) 2016 Published by Elsevier B.V.

引用

页码：110 / 115

页数：6

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