Photoluminescent properties of ZnS nanoparticles prepared by electro-explosion of Zn wires |
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Authors: | Navendu Goswami P Sen |
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Institution: | (1) School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India;(2) Present address: Department of Physics, Jaypee Institute of Information Technology, A-10, Sector 62, Noida, 201307, UP, India |
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Abstract: | We study the photoluminescent properties of ZnS nanoparticles without the influence of dopants or magnetic impurities. The
ZnS nanoparticles reported in this case were synthesized by a novel method of electro-explosion of wire (EEW). The nanoparticles
were prepared employing electro-explosion of pure zinc wires in a cell filled with sulfide ions to produce a free-standing
compound ZnS semiconductor. To investigate the structural and optical properties, these nanoparticles were characterized by
X-ray powder diffraction (XRD), atomic force microscopy (AFM), UV–visible and photoluminescence (PL) spectroscopy. Consistent
with the enhancement of the PL intensity of the 443 nm peak due to deep blue emission of ZnS particles, the XRD of the nanoparticles
reveals a hexagonal phase of ZnS nanocrystallites prepared by our novel synthesis technique.
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Keywords: | nanoparticles semiconductors photoluminescence explosions particle synthesis |
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