Author(s) Dong, J.; Wu, J.; Jia, J.; Fan, L.; Lin, J.
Journal J Colloid Interface Sci
Date Published 2017 Jul 15

Nickel selenide/reduced graphene oxide (Ni0.85Se/rGO) nanosheet composite is synthesized by a facile hydrothermal process and used as counter electrode (CE) for dye-sensitized solar cells (DSSC). The Ni0.85Se/rGO film spin-coated on FTO show prominent electrocatalytic activity toward I3(-)/I(-). The electrocatalytic ability of Ni0.85Se/rGO film is verified by photocurrent-voltage curves, cyclic voltammetry, electrochemical impedance spectroscopy and Tafel polarization curves. On account of its decent electrical conductivity and superior electrocatalytic activity, the DSSC using optimal Ni0.85Se/rGO CE achieves a power conversion efficiency (PCE) of 9.75%, while the DSSC based on sputtered Pt CE only obtains a PCE of 8.15%.

DOI 10.1016/j.jcis.2017.03.025
ISSN 1095-7103
Citation J Colloid Interface Sci. 2017;498:217222.

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