MoS2-graphene hybrids as efficient counter electrodes in CdS quantum-dot sensitized solar cells

被引:22
作者
Zhen, Miaomiao [1 ]
Li, Fengyan [1 ]
Liu, Ran [1 ]
Song, Chunli [1 ]
Xu, Lin [1 ]
Luo, X. Z. [2 ]
机构
[1] Northeast Normal Univ, Coll Chem, Key Lab Polyoxometalates Sci, Minist Educ, Changchun 130024, Peoples R China
[2] Yili Normal Univ, Coll Chem & Biol Sci, Yining 835000, Peoples R China
关键词
Quantum dots sensitized solar cells; Counter electrode; Molybdenum sulfide; Graphene; IONIC LAYER ADSORPTION; NANOROD ARRAYS; THIN-FILM; PERFORMANCE; GRAPHENE; MOS2; PBS; NOBLE;
D O I
10.1016/j.jphotochem.2017.03.021
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
MoS2-graphene (M-G) hybrid was prepared by a hydrothermal method and used as counter electrode materials in CdS quantum dot-densitized solar cells (QDSSCs). Under simulated solar light irradiation, the cell with M-G counter electrode has higher efficiency than that of Pt and bare MoS2 counter electrode owing to the synergistic effects between MoS2 and graphene. The electrochemical impedance spectroscopy (EIS) and Tafel-polarization measurements reveal that M-G counter electrodes show better electrocatalytic activity. Moreover, the fabricated cell, shows high efficiency (6.23%) under weak light intensity (25 mW/cm(2)). (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:120 / 127
页数:8
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