NiS2 Nanosheet Films Supported on Ti Foils: Effective Counter Electrodes for Quantum Dot-Sensitized Solar Cells

被引：10
作者：
Gong, Cheng [1 ,2 ]
Hong, Xiaodan [3 ]
Xiang, Siwan [1 ,2 ]
Wu, Zhi [1 ,2 ]
Sun, Lan [1 ,2 ]
Ye, Meidan [3 ]
Lin, Changjian [1 ,2 ]
机构：
[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, Xiamen 361005, Peoples R China
[3] Xiamen Univ, Res Inst Biomimet & Soft Matter, Dept Phys, Fujian Prov Key Lab Soft Funct Mat Res, Xiamen 361005, Peoples R China
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2018年 / 165卷 / 03期
基金：
中国国家自然科学基金;
关键词：
HIGHLY EFFICIENT; ARRAYS; PERFORMANCE; CU1.8S; GROWTH; CUS;
D O I：
10.1149/2.0171803jes
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Ni(OH)(2) nanosheet films were fabricated on Ti foils by a simple hydrothermal method and subsequently converted into NiS2 via a vulcanized post-treatment at high temperature. The resultant NiS2 nanosheet films were applied to quantum dot-sensitized solar cells (QDSSCs) as counter electrodes (CEs), showing great electrocatalytic activity with low charge-transfer resistance and high exchange current density in the reduction of the polysulfide electrolyte. An optimized power conversion efficiency up to 2.25% was achieved for the optimum NiS2-based QDSSC, suggesting an 51% enhancement in comparison with that of the QDSSC featuring the Pt CE (1.49%). (C) The Author(s) 2018. Published by ECS.
引用
收藏
页码：H45 / H51
页数：7
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