Journal
ELECTROCHIMICA ACTA
Volume 118, Issue -, Pages 118-123Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.11.191
Keywords
Quantum dot-sensitized solar cell; double coating; barrier layer; CdS/CdSe; Recombination
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Funding
- Mid-career Researcher Program through NRF [20110014437]
- MEST
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CdS/CdSe quantum dot-sensitized solar cells (QDSCs) based on TiO2 nanoparticles were examined. TiO2 nanoparticles were coated with three different insulating oxide materials, Al2O3, MgO and BaTiO3, as a barrier layer to prevent recombination losses. In this study, a single and double coated barrier layer is fabricated to optimize the passivation effect. The optimized double coating structure increased the electron transport rate and electron lifetime and showed improved conversion efficiency. (C) 2013 Elsevier Ltd. All rights reserved.
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