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

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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

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Publication details

The article was received on 20 Jan 2018, accepted on 05 Feb 2018 and first published on 06 Feb 2018


Article type: Communication
DOI: 10.1039/C8TC00325D
Citation: J. Mater. Chem. C, 2018, Advance Article
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    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, Advance Article , DOI: 10.1039/C8TC00325D

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