Journal
NANO ENERGY
Volume 2, Issue 6, Pages 1287-1293Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2013.06.008
Keywords
Dye-sensitized solar cells; Zn2SnO4; Nanosheets; Light scattering; Photovoltaic performance
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Funding
- National Natural Science Foundation of China [20873183, U0934003]
- Program for New Century Excellent Talents in University [NCET-11-0533]
- Fundamental Research Funds for the Central Universities
- Research Fund for the Doctoral Program of Higher Education [20100171110014]
- Sun Yat-Sen Innovative Talents Cultivation Program for Doctoral Graduate Student
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Hierarchical Zn2SnO4 nanosheets consisting of nanoparticles are synthesized for the first time through the facile hydrothermal process in the presence of F. Dye-sensitized solar cell based on hierarchical Zn2SnO4 nanosheets photoelectrode shows a remarkable enhancement in power conversion efficiency (4.82%) compared to that of nanoparticles (4.01%) because of its superior light scattering ability, faster electron transport rate and slower charge recombination rate, which were confirmed by the UV-vis diffuse reflectance spectroscopy, intensity-modulated photocurrent/photovoltage spectroscopy and electrochemical impedance spectroscopy. Further TiCl4 treatment of Zn2SnO4 nanosheets photoelectrode results in an impressive photovoltaic performance of 5.44%. (C) 2013 Elsevier Ltd. All rights reserved.
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