High performance metal sulfide counter electrodes for organic sulfide redox couple in dye-sensitized solar cells

被引：33
作者：
Han, Qianji [1 ]
Hu, Zaixin [1 ]
Wang, Hongrui [1 ]
Sun, Yuxin [1 ]
Zhang, Jing [1 ]
Gao, Lin [1 ]
Wu, Mingxing [1 ]
机构：
[1] Hebei Normal Univ, Coll Chem & Mat Sci, Key Lab Inorgan Nanomat Hebei Prov, 20 Rd East 2nd Ring South, Shijiazhuang 050024, Hebei, Peoples R China
来源：
MATERIALS TODAY ENERGY | 2018年 / 8卷
基金：
中国国家自然科学基金;
关键词：
Counter electrode; Sulfide; Solar cell; Synthesis; Dye; Organic redox couple; CARBON; ELECTROCATALYST; GENERATION; GRAPHENE; CATALYST;
D O I：
10.1016/j.mtener.2018.02.004
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：
In order to reduce the fabrication cost and improve the power conversion efficiency (PCE) of the dye-sensitized solar cells (DSSCs), a class of metal sulfides nanoparticles containing PbS, Ag2S, CuS, CdS, and ZnS are synthesized to replace the expensive and unqualified Pt counter electrode towards the regeneration of the organic sulfide redox couple. The cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel polarization curve results prove that the prepared PbS, CuS, and Ag2S show high catalytic activities toward the organic redox couple. The PCE values of corresponding devices using the sulfide counter electrodes reach 6.49% (PbS), 6.11% (Ag2S), and 5.29% (CuS), much higher than the DSSCs using Pt counter electrode (3.86%). (C) 2018 Elsevier Ltd. All rights reserved.
引用
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页码：1 / 7
页数：7
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