Co0.85Se hollow nanoparticles as Pt-free counter electrode materials for dye-sensitized solar cells

被引：41

作者：

Jiang, Qingsong ^{[1
]}

Hu, Guang ^{[1
]}

机构：

[1] Huaiyin Inst Technol, Fac Math & Phys, Huaian 223003, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 153卷

关键词：

Solar energy materials; Dye-sensitized solar cells; Counter electrode; Cobalt selenide; Electrocatalytic activity; GROWTH;

D O I：

10.1016/j.matlet.2015.04.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, Co0.85Se hollow nanoparticles have been successfully synthesized by a one-step solvothermal method. The Co0.85Se counter electrode (Co0.85Se CE) has been fabricated and used for dye-sensitized solar cells (DSSCs). The electrocatalytic activity of CEs has been characterized by cyclic voltammetry, Tafel-polarization curves, and electrochemical impedance spectroscopy. The results indicate that Co0.85Se CE with a large surface area shows the high electrocatalytic activity for the reduction of I-3(-). The power conversion efficiency of the DSSC based on Co0.85Se CE is obtained up to 6.03%, which is slightly lower than that of the DSSC based on Pt CE (6.45%). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：114 / 117

页数：4

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