Abstract
TiO2 porous films have been prepared by electrophoresis deposition method, while tin sulfide (SnS) and cadmium sulfide quantum dots (QDs) have been deposited by a simple and inexpensive successive ionic layer adsorption and reaction method. The CdS and SnS QDs modifications expanded the photoresponse range of TiO2 nanoparticles from the ultraviolet region to visible range. Such prepared SnS/CdS/TiO2 films were used as photo-anodes to assemble QDs sensitized solar cells with I−/I3 − liquid electrolyte and Pt-coated fluorine-doped tin oxide glass counter electrode. The best resulting cells had an open circuit voltage of 520 mV, a short circuit current density of 2.972 mA cm−2, a fill factor of 0.61, and with a conversion efficiency of 0.936%.
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Acknowledgements
This work is supported financially by the Natural Science Foundation of Qinghai province (No. 2013-Z-924Q), the Research Program of Application Foundation of Qinghai Province (No. 2015-ZJ-738), and Joint Foundation of Beijing University of Technology-Qinghai Nationalities University Cooperation (312000514315008).
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Xie, YL., Song, P. & Zhao, SQ. Preparation of SnS/CdS Co-sensitized TiO2 Photoelectrodes for Quantum Dots Sensitized Solar Cells. J. Electron. Mater. 45, 4952–4957 (2016). https://doi.org/10.1007/s11664-016-4647-6
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DOI: https://doi.org/10.1007/s11664-016-4647-6