Local structure dependence of the charge transfer band in nanocrystalline Y2O3:Eu3+
Journal
Chemical Physics Letters
Journal Volume
405
Journal Issue
4-6
Pages
314-317
Date Issued
2005
Author(s)
Abstract
Eu doped nanocrystalline Y2O3 with different sizes were prepared by combustion synthesis. Dependences of particle size, crystal status and fluorescence characteristic on ratio of glycine/Y(NO 3)3 and annealing temperature were studied. It was observed that the peaks of charge transfer (CT) band do not shift with different size in low-doped concentration. With the increasing of concentration and annealing temperature, the peaks of CT band blue shift distinctly. It can be concluded that the CT band in cubic nanocrystalline Y2O 3:Eu3+ has no direct connection with size, but depends on local structure, especially crystal status. © 2005 Elsevier B.V. All rights reserved.
Publisher
Elsevier
Type
journal article