Journal
CHEMICAL COMMUNICATIONS
Volume 51, Issue 64, Pages 12863-12866Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc03890a
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Funding
- National Natural Science Foundation of China [51472014, 51438011]
- Foundation for the Author of National Excellent Doctoral Dissertation of China [201331]
- Program for New Century Excellent Talents in University [NCET-13-0032]
- Fundamental Research Funds for the Central Universities
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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.
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