NiSe2 as an efficient electrocatalyst for a Pt-free counter electrode of dye-sensitized solar cells

[摘要]：Nickel diselenide (NiSe2) has been synthesized and applied as a counter electrode (CE) of dye-sensitized solar cells (DSSCs) for the first time, which displays remarkable catalytic activity in the reduction of I-3(-). The DSSC with a NiSe2 CE produces a higher power conversion efficiency (8.69%) than that (8.04%) of the cell with a Pt CE under the same conditions. A new method for comparing the catalytic activity has also been proposed.

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