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Microwave-assisted synthesis of a graphene–Bi8La10O27 nanocomposite as an efficient catalytic counter electrode for dye-sensitized solar cells

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Abstract

A graphene–Bi8La10O27 nanocomposite (GBL) was successfully synthesized by a facile microwave-assisted method, and applied as a counter electrode for efficient dye-sensitized solar cells. This allowed the size and distribution of the Bi8La10O27 nanoparticles formed on a flexible graphene sheet to be effectively controlled, which is crucial for achieving high electrocatalytic activity for I3 reduction. GBL showed the highest catalytic activity and the lowest electrolyte diffusion resistance, mainly due to the homogeneous single-layer immobilization of Bi8La10O27 nanoparticles on a graphene sheet with high density. A dye-sensitized solar cell with GBL as a counter electrode can yield 7.09% photoelectric conversion efficiency, which is comparable to that of the cell with a Pt-film counter electrode (6.23), which demonstrates the application potential of GBL as a low cost non-Pt CE material for DSSCs.

Graphical abstract: Microwave-assisted synthesis of a graphene–Bi8La10O27 nanocomposite as an efficient catalytic counter electrode for dye-sensitized solar cells

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Publication details

The article was received on 22 May 2017, accepted on 07 Jul 2017 and first published on 10 Jul 2017


Article type: Paper
DOI: 10.1039/C7NJ01782K
Citation: New J. Chem., 2017, Advance Article
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    Microwave-assisted synthesis of a graphene–Bi8La10O27 nanocomposite as an efficient catalytic counter electrode for dye-sensitized solar cells

    Y. Areerob, K. Cho and W. Oh, New J. Chem., 2017, Advance Article , DOI: 10.1039/C7NJ01782K

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