Solution processed transition metal sulfides: application as counter electrodes in dye sensitized solar cells (DSCs).

Abstract

A solution processed method for fabricating transition metal sulfides on fluorine doped tin oxide (FTO) as efficient counter electrodes in iodine/iodide based solar cells has been demonstrated. Conversion efficiencies of 7.01% and 6.50% were obtained for nickel and cobalt sulfides, respectively, comparable to the conventional thermally platinised FTO electrodes (7.32%). A comparable charge transfer resistance of Ni(3)S(2) and Co(8.4)S(8) to conventional Pt was found to be a key factor for such high efficiencies. Cyclic voltammetry, Kelvin probe microscopy, Electrochemical Impedance Spectroscopy, and Tafel polarization were performed to study the underlying reasons behind such efficient counter electrode performance.

DOI: 10.1039/c1cp22817j

Cite this paper

@article{Mulmudi2011SolutionPT, title={Solution processed transition metal sulfides: application as counter electrodes in dye sensitized solar cells (DSCs).}, author={Hemant Kumar Mulmudi and Sudip Kumar Batabyal and Manohar Rao and Rajiv Ramanujam Prabhakar and Nripan Mathews and Y. M. Lam and Subodh Mhaisalkar}, journal={Physical chemistry chemical physics : PCCP}, year={2011}, volume={13 43}, pages={19307-9} }