Nickel phosphide-embedded graphene, prepared by the hydrothermal reaction of red phosphorus, nickel chloride, and graphene oxide in a mixture of ethylene glycol-water, is investigated as the counter electrode of DSSCs. It is demonstrated that the DSSC with the nickel phosphide-embedded graphene as the new counter electrode presents an excellent performance competing with that of the Pt electrode.

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A series of high-quality N-doped graphene (N-graphene)/Fe3O4 nanocomposites were readily obtained by a simple one-pot hydrothermal method under mild conditions.

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