Influence of silver nanoclusters on formation of PbS quantum dots in glasses
Journal of Non-Crystalline Solids(2011)
摘要
Heat-treatment was used to precipitate PbS quantum dots (QDs) in silicate glasses doped with different amounts of Ag2O, and the influence of Ag2O on QDs was investigated. Under given heat-treatment conditions, the absorption coefficients and photoluminescence intensities of PbS QDs increased with the addition of Ag2O. Ag clusters formed by thermal treatment nucleated formation of PbS QDs in glasses.
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关键词
PbS quantum dots,Silver clusters,Absorption,Photoluminescence,Thermal treatment
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