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  • A free radical assisted strategy for preparing ultra-small Pt decorated CNTs as a highly efficient counter electrode for dye-sensitized solar cells

    Author(s)
    Yang, Xiao Hua
    Guo, Jian Wei
    Yang, Shuang
    Hou, Yu
    Zhang, Bo
    Yang, Hua Gui
    Griffith University Author(s)
    Yang, Huagui
    Year published
    2014
    Metadata
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    Abstract
    In this paper, a free radical assisted strategy was introduced into the functionalization of counter electrode materials for the first time. With the assistance of a radical initiator, short-chained thiol groups can be attached on a multi-walled carbon nanotube (MWCNT) surface covalently, which was confirmed to be beneficial for both controlling the particle growth of platinum (Pt) on MWCNTs and improving the electron transfer between counter electrode materials and the substrate. The obtained Pt–MWCNT composite has been applied as a counter electrode material for dye-sensitized solar cells, and the power conversion efficiency ...
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    In this paper, a free radical assisted strategy was introduced into the functionalization of counter electrode materials for the first time. With the assistance of a radical initiator, short-chained thiol groups can be attached on a multi-walled carbon nanotube (MWCNT) surface covalently, which was confirmed to be beneficial for both controlling the particle growth of platinum (Pt) on MWCNTs and improving the electron transfer between counter electrode materials and the substrate. The obtained Pt–MWCNT composite has been applied as a counter electrode material for dye-sensitized solar cells, and the power conversion efficiency (η) was detected to be 8.62%, surpassing that of the cell with a conventional Pt counter electrode (η = 7.56%). Especially, the fill factor improved considerably from 0.57 to 0.65.
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    Journal Title
    Journal of Materials Chemistry A
    Volume
    2
    DOI
    https://doi.org/10.1039/c3ta13986g
    Subject
    Synthesis of Materials
    Macromolecular and Materials Chemistry
    Materials Engineering
    Interdisciplinary Engineering
    Publication URI
    http://hdl.handle.net/10072/102417
    Collection
    • Journal articles

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