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High Performance MoSe2/Mo Counter Electrodes Based-Dye-Sensitized Solar Cells

Title
High Performance MoSe2/Mo Counter Electrodes Based-Dye-Sensitized Solar Cells
Author
Patil, Supriya A.
Keywords
ACTIVE EDGE SITES; CARBON NANOTUBES; LOW-COST; MOS2; MECHANISM; EVOLUTION; GROWTH
Issue Date
2017-01
Publisher
ELECTROCHEMICAL SOC INC
Citation
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v. 164, no. 2, page. E11-E16
Abstract
In the present study, multilayer MoSe2/Mo nanostructures fabricated by surface selenization of Mo-coated glass substrates using magnetron sputtering, was proposed as a counter electrode (CE) catalyst in dye-sensitized solar cells (DSSCs) to speed up the reduction of triiodide I-3(-) to iodide I-. The extensive cyclic voltammograms (CV) and Tafel curve analysis indicated that the current density of the optimized MoSe2/Mo CE was higher than Pt CEs due to the fast reduction species. Furthermore, the peak current densities of theMoSe(2)/Mo CE showed little degradation after consecutive 100 CV cycles, suggesting high electrochemical stability of the MoSe2/Mo CE. In addition, MoSe2/Mo CE exhibited lower charge-transfer resistance than Pt CEs. Finally, the DSSC assembled with the MoSe2/Mo CE showed a high power conversion efficiency of 9.57% under illumination of 100 mW.cm(-2) (DSSC with Pt CE: 9.15%). (C) 2017 The Electrochemical Society. All rights reserved.
URI
http://jes.ecsdl.org/content/164/2/E11https://repository.hanyang.ac.kr/handle/20.500.11754/112215
ISSN
0013-4651; 1945-7111
DOI
10.1149/2.1291702jes
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > ETC
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