Helical carbon nanofiber as a low-cost counter electrode for dye sensitized solar cells

被引：19

作者：

Wang, Guiqiang ^{[1
]}

Kuang, Shuai ^{[2
]}

Zhang, Wei ^{[1
]}

机构：

[1] Bohai Univ, Sch New Energy, Jinzhou 121013, Peoples R China

[2] Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 174卷

基金：

中国国家自然科学基金;

关键词：

Solar energy materials; Energy storage and conversion; Carbon materials; GRAPHENE;

D O I：

10.1016/j.matlet.2016.03.076

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Helical carbon nanofiber (HCNF) is prepared by the pyrolysis of acetylene using Cu nanoparticle catalyst and investigated as the low-cost counter electrode in dye-sensitized solar cells. The obtained HCNF sample displays a form of regular single nanocoil with the coil diameter of 50 nm and has a high surface area of 156 m(2) g(-1). The electrochemical measurements indicate that HCNF electrode possesses an excellent electrocatalytic activity for the reduction of I-3(-); the charge-transfer resistance of HCNF electrode is 1.1 Omega cm(2) in the I-/I-3(-) redox electrolyte. Under illumination of 100 mW cm(-2) (AM 1.5), the dye-sensitized solar cell based on HCNF counter electrode achieves an energy conversion efficiency of 6.74%, which is comparable to that of the device based on Pt counter electrode. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：14 / 16

页数：3

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