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  • Title: In situ growth of Co(0.85)Se and Ni(0.85)Se on conductive substrates as high-performance counter electrodes for dye-sensitized solar cells.
    Author: Gong F, Wang H, Xu X, Zhou G, Wang ZS.
    Journal: J Am Chem Soc; 2012 Jul 04; 134(26):10953-8. PubMed ID: 22713119.
    Abstract:
    We present herein a facile one-step low-temperature hydrothermal approach for in situ growth of metal selenides (Co(0.85)Se and Ni(0.85)Se) on conductive glass substrates. The as-prepared metal selenides on conductive substrates can be used directly as transparent counter electrodes for dye-sensitized solar cells (DSSCs) without any post-treatments. It is found that graphene-like Co(0.85)Se exhibits higher electrocatalytic activity than Pt for the reduction of triiodide. As a consequence, the DSSC with Co(0.85)Se generates higher short-circuit photocurrent and power conversion efficiency (9.40%) than that with Pt.
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