期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 76, 期 5, 页码 523-530出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2010.04.018
关键词
X-ray diffraction; Photoluminescence; Strain; Photoconductivity
类别
资金
- University Grants Commission
Mn2+ doped ZnS nanoparticles are characterized using UV-vis, photoluminescence and photoconductivity studies. The size of Mn2+ doped ZnS NPs is estimated to be 2-4 nm by X-ray diffraction. UV-vis spectra show a blue shift in absorption edge as compared to bulk counterpart. Photoluminescence spectra indicate that orange luminescence varies with Mn2+ concentration. The Mn2+ doped ZnS nanoparticles are found to be photosensitive. The doping of Mn2+ ions improves the photosensitivity of the ZnS nanoparticles system. The time-resolved rise and decay of photocurrent indicate anomalous behavior during steady state illumination. (C) 2010 Elsevier B.V. All rights reserved.
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