Journal
IEEE JOURNAL OF PHOTOVOLTAICS
Volume 6, Issue 5, Pages 1196-1202Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOTOV.2016.2585021
Keywords
Electrode; molybdenum diselenide; photovoltaic cells; supercapacitors
Funding
- National Natural Science Foundation of China [91422301, 51472094, 61474047, 21301060, 61306077, U1205112]
- specialized research fund for the doctoral program of Higher University, Ministry of Education, China [20123501110001]
- Cultivation Program for Postgraduate in Scientific Research Innovation Ability of Huaqiao University [1511102004]
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Metal dichalcogenide has a layered structure, which is endowed with versatile and tunable photoelectrochemical properties. In this paper, molybdenum diselenide (MoSe2) is synthesized by the solvothermal method, and the as-synthesized MoSe2 shows microsphere hierarchical architecture composed of 2-D nanosheets. The electrochemical characterization indicates that the MoSe2 electrode has lower resistances and better electro-catalytic activity toward triiodide/iodide redox reaction than the traditional Pt electrode. Using the MoSe2 as a counter electrode in the dye-sensitized solar cell (DSSC), a high-power-conversion efficiency of 9.80% is achieved, outperforming the DSSC-based traditional Pt counter electrode (8.17%). Moreover, using the MoSe2 as an electrode in the supercapacitor, it displays a high specific capacitance of 272 F.g(-1).
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