Journal
JOURNAL OF POWER SOURCES
Volume 275, Issue -, Pages 943-949Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2014.11.048
Keywords
Solar cells; Titanium dioxide; Molybdenum disulfide; Chemical bath; Photovoltaic performance
Funding
- China-Japan International Cooperation Program Funds [2010DFA61410, 2011DFA50530]
- National Natural Science Foundations of China [51272035, 51272037, 51362026, 51472043]
- National High Technology Research and Development Program of China (863 Program) [2011AA050522]
- Program for New Century Excellent Talents in University [NCET-12-0097]
- Junqiao Wu Lab at University of California, Berkeley
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Herein, we reported a novel MoS2/TiO2 heterostructure inorganic solar cell based on chemical-bath deposition of MoS2 in the mesoporous TiO2 three-dimensional network. Raman spectrum indicated the existence of MoS2 and suggested a few-layer structure with peaks at 384 cm(-1) and 405.5 cm(-1). HRTEM images further confirmed the few-layer structure of MoS2 (3-7 layers). With deposited MoS2, UV absorption spectra of TiO2 photoanode film indicated a considerably enhanced absorption in the visible region. Both annealing and careful control of the thickness of MoS2 sensitized layer could optimize the photovoltaic performance. The reason for the enhanced photovoltaic performance of the novel inorganic solar cell was also explained in detail. (C) 2014 Elsevier B.V. All rights reserved.
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