Abstract:We demonstrate a very simple method of carbon incorporation in silica nanopowder using sucrose as a carbon precursor. Dehydration of sucrose adsorbed in fumed silica host resulted in formation highly luminescent SiO2:C nanocomposite. Effects of chemical and thermal dehydration of sucrose molecules as well as carbon content on spectral properties of broad band photoluminescence (PL) and PL relaxation properties were studied. It is shown that carbon incorporation plays a crucial role in formation of light emitti… Show more
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