Journal
ELECTROCHIMICA ACTA
Volume 68, Issue -, Pages 141-145Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.02.036
Keywords
Zinc stannate; Zinc oxide nanorod; Core-shell nanorod; Cadmium sulfide; Quantum dot sensitized solar cell
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Funding
- Sheikh Saqr Al Qasimi Graduate Research Fellowship
- Centre of Excellence in Nanotechnology at the Asian Institute of Technology, Thailand
- National Nanotechnology Center (NANOTEC) of National Science & Technology Development Agency (NSTDA), Royal Thai Government
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Nanorod arrays of zinc oxide-zinc stannate core-shell photoelectrodes were prepared by a simple hydrothermal process and cadmium sulfide (CdS) quantum dot sensitized solar cells were fabricated. The photocurrent density of the core-shell photoelectrode was found to improve by 2.4 times compared to ZnO nanorod photoelectrodes, due to improved surface area and charge transport in the core-shell photoelectrodes. With a thin layer of ZnS on the CdS quantum dot surface, the core-shell quantum dot sensitized solar cell demonstrated maximum power conversion efficiency of 1.24% under 1 sun illumination (AM1.5). (C) 2012 Elsevier Ltd. All rights reserved.
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