Issue 12, 2018

The distribution of rare earth ions in a γ-Ga2O3 nanocrystal-silicate glass composite and its influence on the photoluminescence properties

Abstract

The distribution of rare earth ions (REs: Yb3+, Er3+, Eu3+ and Nd3+) in a nanostructured silicate glass ceramic containing a wide bandgap γ-Ga2O3 nanospinel is revealed using well-prepared electron-transparent samples and an analytical transmission electron microscope (TEM). It is found that the REs accumulate preferentially in the γ-Ga2O3 nanocrystals formed, and the REs of small ionic radii (Yb3+ and Er3+) exhibit higher doping efficiency in the nanocrystals than those of larger ionic radii (Eu3+ and Nd3+). The incorporation of REs into the γ-Ga2O3 nanospinels leads to a significant modification of their photoluminescence characteristics including the emission intensity, peak wavelength, bandwidth and decay lifetime of the dopants. The possible causes are discussed.

Graphical abstract: The distribution of rare earth ions in a γ-Ga2O3 nanocrystal-silicate glass composite and its influence on the photoluminescence properties

Article information

Article type
Communication
Submitted
20 janv. 2018
Accepted
05 févr. 2018
First published
06 févr. 2018

J. Mater. Chem. C, 2018,6, 2944-2950

The distribution of rare earth ions in a γ-Ga2O3 nanocrystal-silicate glass composite and its influence on the photoluminescence properties

Z. Gao, X. Lu, Y. Chu, S. Guo, L. Liu, Y. Liu, S. Sun, J. Ren and J. Yang, J. Mater. Chem. C, 2018, 6, 2944 DOI: 10.1039/C8TC00325D

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