Enhanced luminescence from Y2O3:Nd3+ nano-powders embedded in a silica glass matrix

Nd3+ doped Y2O3 nano-powders were synthesized using the thermal decomposition method with an average particle size of 10 nm, estimated by XRD and TEM measurements. The nano-powders were inserted into the silica glass matrix during the fabrication of the glasses using the sol-gel method. The obtained...

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Bibliographic Details
Published in:Laser physics letters 2015-04, Vol.12 (4)
Main Author: Bilir, Gökhan
Format: Article
Language:English
Subjects:
laser spectroscopy
luminescence
nanophosphors
Nd
silica glass matrix
Online Access:Get full text
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Summary:Nd3+ doped Y2O3 nano-powders were synthesized using the thermal decomposition method with an average particle size of 10 nm, estimated by XRD and TEM measurements. The nano-powders were inserted into the silica glass matrix during the fabrication of the glasses using the sol-gel method. The obtained samples were characterized both structurally and optically. The TEM images of the Y2O3:Nd3+ nano-powders in the silica glass matrix indicated that the nano-powders were dispersed homogeneously in the glass matrix. The emission spectra of the samples with those of freestanding nano-powders showed that the sharp emission peaks became wider and the Stark levels disappeared after introducing nano-powders into the silica. The decay times of the 4F3/2 level were found to enhance after introducing nano-powders into the silica matrix.
ISSN:1612-2011
1612-202X
DOI:10.1088/1612-2011/12/4/045901