Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 6, Issue 2-3, Pages 181-191Publisher
SPRINGER
DOI: 10.1023/B:NANO.0000034624.56366.ac
Keywords
oxide/polymer nanocomposite; interface; quantum confinement; blue shift luminescence
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It is demonstrated that nanocomposites, consisting of an electrically insulating oxide core and PMMA coating exhibit strong luminescence. This luminescence is connected to the interface, where PMMA is bond via a carboxylate bonding to the surface. In this case, luminescence is originated at the carbonyl group of the coating polymer. With decreasing particle size, this emission shows a blue shift, following a law inversely the ones found for quantum confinement systems. For semi-conducting oxides, such as ZnO, this interface related emission is found additionally to quantum confinement phenomena.
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