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Open AccessArticle

Luminescence Behavior of GdVO4: Tb Nanocrystals in Silica Glass-Ceramics

by Shuai Han 1,2, Yiting Tao 1,2, Ying Du 1,2, Sasa Yan 1,2, Yanping Chen 3 and Danping Chen 1,*
Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Institute of Materials, China Academy of Engineering Physics, Mianyang 621000, China
Author to whom correspondence should be addressed.
Crystals 2020, 10(5), 396;
Received: 17 April 2020 / Revised: 12 May 2020 / Accepted: 12 May 2020 / Published: 15 May 2020
(This article belongs to the Special Issue Transparent Glass Ceramics)
Glass ceramics with GdVO4: Tb nanocrystals impregnated in the highly transparent silica glass were prepared by the porous glass and sintering process and confirmed by XRD, Raman spectrum, and TEM. Spectral analysis shows that there are multifarious energy transfer processes in GdVO4: Tb nanocrystals, such as VO43− → Tb3+, Gd3+ → VO43−, Gd3+ → VO43− → Tb3+, and Gd3+ → Tb3+, and the main one is VO43− → Tb3+. In this process, 3T1,21A1 transition of VO43− transfers the energy to Tb3+ and generates 5D37F6,5,4,3,2 and 5D47F5 transitions of Tb3+. The energy transfer efficiency is 29.5%, and the excitation wavelength range of Tb3+ ions can be shifted from 230–260 nm to 280–365 nm. This shows that GdVO4 can effectively change the excitation wavelength of Tb3+, which is conducive to the application of Tb3+ ions excited by LED light sources. View Full-Text
Keywords: transparent glass-ceramics; GdVO4: Tb; luminescence; energy transfer transparent glass-ceramics; GdVO4: Tb; luminescence; energy transfer
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MDPI and ACS Style

Han, S.; Tao, Y.; Du, Y.; Yan, S.; Chen, Y.; Chen, D. Luminescence Behavior of GdVO4: Tb Nanocrystals in Silica Glass-Ceramics. Crystals 2020, 10, 396.

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