, Volume 36, Issue 18, pp 4377-4384

Properties of zinc sulphide nanoparticles stabilized in silica

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Zinc sulphide nanoparticles have been synthesized in silica matrix using sol-gel method. It is observed that silica could be loaded with zinc sulphide over a very wide range of concentration without changing the nanoparticle size. A strongly luminescent zinc sulphide-silica composite, thermally stable even upto ∼700°C was thus obtained. Several techniques like UV absorption, photoluminescence, x-ray diffraction, scanning electron microscopy, transmission electron microscopy, thermogravimetry and photoelectron spectroscopy have been performed to analyse the ZnS-silica composites.