期刊
APPLIED SURFACE SCIENCE
卷 435, 期 -, 页码 1249-1256出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.11.210
关键词
Electrodeposition; CZTS; Sodium perchlorate; Tauc plot
类别
资金
- Department of Science and Technology - Solar Energy Research Initiative (DST-SERI) [SEDST/TMC/SERI/2K12/57]
- DST-SERB [SR/FTP/ETA-412/2013]
Copper zinc tin sulfide (CZTS) a promising quaternary chalcogenide material was deposited using single step electrodeposition using glycine as the complexing agent. The deposition was studied at different sulfur concentrations and at different pH. The pH of the electrolyte was found to influence the stoichiometry of the deposits significantly. The deposits formed at pH 2.5 showed satisfactory stoichiometry. The thickness of the deposits was observed to decrease with increase in sulfur concentration and pH. The transmission electron spectroscopy analysis showed the formation of flower shaped core shell particles from the electrolyte that contained 80 mM sulfur precursor at pH 2.5. The band gap of the deposits was found to be in the range from 1.57 eV to 2.1 eV. X-ray diffraction analysis showed that the as synthesized particles were amorphous in nature, the crystallinity of which improved with annealing. The Mott Schottky analysis of the deposits in 0.1 M sodium perchlorate showed that the particles exhibited p-type conductivity. (C) 2017 Elsevier B.V. All rights reserved.
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