Issue 8, 2011

Dye-sensitized solar cells with NiS counter electrodes electrodeposited by a potential reversal technique

Abstract

Nickel sulfides have been, for the first time, electrodeposited on transparent conductive glass by a facile periodic potential reversal (PR) technique to supersede Pt counter electrodes (CEs) of dye-sensitized solar cells (DSCs). The composition and electrochemical catalytic activity of the nickel sulfide films prepared by PR technique are different from those of the ones deposited by the commonly used potentiostatic (PS) technique. PR technique produces transparent single-component NiS, while co-deposition of Ni and NiS is found in the opaque films prepared by PS method. The nickel sulfide deposited by PR technique shows high catalytic activity for the reduction of I3āˆ’ to Iāˆ’ in a DSC. DSC with the CE deposited by PR technique performs much better (6.82%) than that by PS method (3.22%), and is comparable to the device with conventional Pt coated CE (7.00%).

Graphical abstract: Dye-sensitized solar cells with NiS counter electrodes electrodeposited by a potential reversal technique

Supplementary files

Article information

Article type
Paper
Submitted
19 Dec 2010
Accepted
24 Feb 2011
First published
21 Mar 2011

Energy Environ. Sci., 2011,4, 2630-2637

Dye-sensitized solar cells with NiS counter electrodes electrodeposited by a potential reversal technique

H. Sun, D. Qin, S. Huang, X. Guo, D. Li, Y. Luo and Q. Meng, Energy Environ. Sci., 2011, 4, 2630 DOI: 10.1039/C0EE00791A

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