Influence of silver nanoclusters on formation of PbS quantum dots in glasses

Heat-treatment was used to precipitate PbS quantum dots (QDs) in silicate glasses doped with different amounts of Ag 2O, and the influence of Ag 2O on QDs was investigated. Under given heat-treatment conditions, the absorption coefficients and photoluminescence intensities of PbS QDs increased with...

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Veröffentlicht in:	Journal of non-crystalline solids 2011-06, Vol.357 (11), p.2428-2430
Hauptverfasser:	Xu, Kai, Liu, Chao, Dai, Shixun, Shen, Xiang, Wang, Xunsi, Heo, Jong
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Glass Heat treatment Nanocomposites Nanostructure Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures PbS quantum dots Photoluminescence Physics Precipitates Quantum dots Silicates Silver Silver clusters Thermal treatment
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Beschreibung
Zusammenfassung:	Heat-treatment was used to precipitate PbS quantum dots (QDs) in silicate glasses doped with different amounts of Ag 2O, and the influence of Ag 2O on QDs was investigated. Under given heat-treatment conditions, the absorption coefficients and photoluminescence intensities of PbS QDs increased with the addition of Ag 2O. Ag clusters formed by thermal treatment nucleated formation of PbS QDs in glasses.
ISSN:	0022-3093 1873-4812
DOI:	10.1016/j.jnoncrysol.2010.11.091