Triiodide reduction activity of hydrangea molybdenum sulfide/reduced graphene oxide composite for dye-sensitized solar cells

被引：14

作者：

Pang, Beili ^{[1
]}

Shi, Yongtang ^{[1
]}

Lin, Shan ^{[1
]}

Chen, Yingjie ^{[1
]}

Feng, Jianguang ^{[1
]}

Dong, Hongzhou ^{[1
]}

Yang, Haibin ^{[1
]}

Zhao, Zhixin ^{[1
]}

Yu, Liyan ^{[1
]}

Dong, Lifeng ^{[1
,2
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Shandong, Peoples R China

[2] Hamline Univ, Dept Phys, St Paul, MN 55104 USA

来源：

MATERIALS RESEARCH BULLETIN | 2019年 / 117卷

基金：

中国国家自然科学基金;

关键词：

Dye-sensitized solar cells; Counter electrode; MoS2/rGO composite; COUNTER-ELECTRODES; HIGHLY EFFICIENT; MOS2; NANOSHEETS; ELECTROPHORETIC DEPOSITION; CATALYTIC-ACTIVITY; LOW-COST; PERFORMANCE; CARBON; NANOCOMPOSITE; LAYER;

D O I：

10.1016/j.materresbull.2019.04.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The molybdenum sulfide/reduced graphene oxide (MoS2/rGO) composite is prepared by a hydrothermal method. The hydrangea MoS2 powder is composited with rGO to serve as a low-cost and non-platinum counter electrode (CE) to improve photovoltaic performance for dye-sensitized solar cells (DSSCs). The Tafel polarization and electrochemical impedance spectroscopy (EIS) indicate that the MoS2/rGO counter electrode has exceptional electrocatalytic ability and reduction reaction kinetics for the I-/I-3(-) couples on the counter electrode, which is due to hydrangea structure MoS2 formed on rGO surface and matrix as well as the MoS2/rGO composite strongly attached on FTO substrate. The DSSC with novel MoS2/rGO CE achieves a higher power conversion efficiency of 6.72% than that with Pt CE (5.74%) under standard sunlight illumination.

引用

页码：78 / 83

页数：6

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