Synthesis of 3D cauliflower-fungus-like graphene from CO2 as a highly efficient counter electrode material for dye-sensitized solar cells

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Department of Materials Science and Engineering


Three dimensional cauliflower-fungus-like graphene (3D CFG), which possesses high conductivity and excellent catalytic activity, was directly synthesized from CO2. Furthermore, it was demonstrated that the dye-sensitized solar cell (DSSC) with 3D CFG as a counter electrode exhibited a high energy conversion efficiency of 8.1%, which is 10 times higher than that (0.7%) of a DSSC with a counter electrode based on the regular graphene synthesized via chemical exfoliation of graphite. The efficiency is even better than that (7.5%) of the DSSCs with an expensive Pt counter electrode. This would provide a novel approach not only to synthesize free-standing 3D graphene for solar cells, but also to control CO2 emission. This journal is

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© The Royal Society of Chemistry 2014. Publisher’s version of record: https://doi.org/10.1039/c4ta03909b

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Journal of Materials Chemistry A