Synthesis of MoIn 2 S 4 @CNTs Composite Counter Electrode for Dye-Sensitized Solar Cells

A ternary and composite MoIn S @CNTs counter electrode (CE) with a hedgehog ball structure was synthesized by using a facile one-step hydrothermal method. The composite MoIn S @CNTs film possesses large specific surface area through N adsorption-desorption isotherms test, which is advantageous to ad...

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Bibliographic Details
Published in:Nanoscale research letters 2020-09, Vol.15 (1), p.179
Main Authors: Yue, Gentian, Cheng, Renzhi, Gao, Xueman, Fan, Leqing, Mao, Yangfan, Gao, Yueyue, Tan, Furui
Format: Article
Language:English
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Summary:A ternary and composite MoIn S @CNTs counter electrode (CE) with a hedgehog ball structure was synthesized by using a facile one-step hydrothermal method. The composite MoIn S @CNTs film possesses large specific surface area through N adsorption-desorption isotherms test, which is advantageous to adsorb more electrolyte and provide larger active contact area for the electrode. In addition, the composite MoIn S @CNTs CE exhibits low charge transfer resistance and fine electrocatalytic ability made from a series of electrochemical tests including cyclic voltammetry, electrochemical impedance, and Tafel curves. Under optimal conditions, the DSSC based on the MoIn S @CNTs-2 composite CE achieves an impressive power conversion efficiency as high as 8.38%, which remarkably exceeds that of the DSSCs with the MoIn S CE (7.44%) and the Pt electrode (8.01%). The current work provides a simplified preparation process for the DSSCs.
ISSN:1931-7573