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Issue 64, 2015
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Facet-dependent NiS2 polyhedrons on counter electrodes for dye-sensitized solar cells

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Abstract

Octahedral and cubic NiS2 nanocrystals enclosed by {111} and {100} planes were separately used as counter electrodes (CEs) incorporated into Pt-free dye-sensitized solar cells (DSSCs). The DSSC assembled by NiS2 octahedrons exhibited a conversion efficiency of 5.98%, better than that by NiS2 cubes (5.43%). DFT calculations indicate that the better catalytic effect could be ascribed to higher surface energy, more active sites, and more suitable adsorption energy of {111} planes compared with the {100} planes.

Graphical abstract: Facet-dependent NiS2 polyhedrons on counter electrodes for dye-sensitized solar cells

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Supplementary files

Article information


Submitted
11 May 2015
Accepted
29 Jun 2015
First published
29 Jun 2015

Chem. Commun., 2015,51, 12863-12866
Article type
Communication
Author version available

Facet-dependent NiS2 polyhedrons on counter electrodes for dye-sensitized solar cells

J. Zheng, W. Zhou, Y. Ma, W. Cao, C. Wang and L. Guo, Chem. Commun., 2015, 51, 12863
DOI: 10.1039/C5CC03890A

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