TITLE

Optical characterization of CdSe/Dy-doped silica matrices

AUTHOR(S)
Jyothy, P.; Rejikumar, P.; Vinoy, Thomas; Kartika, S.; Unnikrishnan, N.
PUB. DATE
November 2010
SOURCE
Pramana: Journal of Physics;Nov2010, Vol. 75 Issue 5, p999
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Cadmium selenide nanocrystals along with dysprosium ions are doped in silica matrices through sol-gel route. The optical bandgap and size of the CdSe nanocrystals are calculated from the absorption spectrum. The size of the CdSe nanocrystallites is also evaluated from the TEM measurements. The fluorescence intensities are compared for SiO-Dy and CdSe-doped SiO-Dy. The fluorescence intensity of Dy is considerably increased in the presence of CdSe nanocrystals.
ACCESSION #
55511480

 

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