Transparent nickel selenide used as counter electrode in high efficient dye-sensitized solar cells

被引：47

作者：

Jia, Jinbiao ^{[1
]}

Wu, Jihuai ^{[1
]}

Tu, Yongguang ^{[1
]}

Huo, Jinghao ^{[1
]}

Zheng, Min ^{[1
]}

Lin, Jianming ^{[1
]}

机构：

[1] Huaqiao Univ, Inst Mat Phys Chem, Minist Educ, Eng Res Ctr Environm Friendly Funct Mat, Quanzhou 362021, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 640卷

基金：

中国国家自然科学基金;

关键词：

Dye-sensitized solar cell; Counter electrode; Nickel selenide; LOW-COST; HIGH-PERFORMANCE; POLYANILINE ELECTRODE; CARBON; NANOPARTICLES; CATALYST; CARBIDE; FILMS;

D O I：

10.1016/j.jallcom.2015.03.233

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A transparent nickel selenide (Ni0.85Se) is prepared by a facile solvothermal reaction and used as an efficient Pt-free counter electrode (CE) for dye-sensitized solar cells (DSSCs). Field emission scanning electron microscopy observes that the as-prepared Ni0.85Se possesses porous structure. Cyclic voltammogram measurement indicates that Ni0.85Se electrode has larger current density than Pt electrode. Electrochemical impedance spectroscopy shows that the Ni0.85Se electrode has lower charge-transfer resistance than Pt electrode. Under simulated solar light irradiation with intensity of 100 mWcm(-2) (AM 1.5), the DSSC based on the Ni0.85Se CE achieves a power conversion efficiency (PCE) of 8.88%, which is higher than the solar cell based on Pt CE (8.13%). Based on the transparency of Ni0.85Se, the DSSC with Ni0.85Se/mirror achieves a PCE of 10.19%. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：29 / 33

页数：5

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