Solar Cells: Heterojunction Engineering of CdTe and CdSe Quantum Dots on TiO2 Nanotube Arrays: Intricate Effects of Size-Dependency and Interfacial Contact on Photoconversion Efficiencies (Adv. Funct. Mater. 13/2012)

Authors

  • Haihua Yang,

    1. Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
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  • Wenguang Fan,

    1. Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Shatin, N. T., Hong Kong SAR
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  • Aleksandar Vaneski,

    1. Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
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  • Andrei S. Susha,

    1. Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
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  • Wey Yang Teoh,

    Corresponding author
    1. Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Shatin, N. T., Hong Kong SAR
    • Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Shatin, N. T., Hong Kong SAR.
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  • Andrey L. Rogach

    1. Department of Physics and Materials Science and Centre for Functional Photonics (CFP), City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
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Abstract

original image

On page 2821, Wey Yang Teoh and co-workers report that the interfacing of CdTe and CdSe quantum dots (QD) on aligned TiO2 nanotube (TNT) arrays enables the fabrication of efficient, low-cost, photo-electrochemical solar cells. By improving the quality of the QD-TNT interface, multiple-fold enhancement in photoconversion efficiency can be achieved and the charge injection efficiencies of QDs of different sizes are exhibited.

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