作者:Xing, ZF (Xing, Zhifeng)^[ 1 ] ; Lun, MM (Lun, Mengmeng)^[ 1 ] ; Wu, WY (Wu, Wanying)^[ 1 ] ; Song, HZ (Song, Hanzhao)^[ 1 ] ; Yao, AH (Yao, Aihua)^[ 1 ] ; Zhou, XS (Zhou, Xunsheng)^[ 1 ] ; Wang, YZ (Wang, Yinzhen)^[ 1 ] ; Chu, BL (Chu, Benli)^[ 1 ] ; Li, W (Li, Wei)^[ 1 ] ; He, QY (He, Qinyu)^[ 1 ] ; He, GN (He, Guannan)^[ 1 ]

CERAMICS INTERNATIONAL

卷: 46

 期: 7

 页: 8971-8978

DOI: 10.1016/j.ceramint.2019.12.144

出版年: MAY 2020

文献类型:Article

摘要

Luminescent transparent ceramics al (Tb1-xYx)(3)Al5O12 (x = 0, 0.2, 0.5, 0.8) are successfully prepared by a solid-state method with additional hot isostatic pressing (HIP) treatment, and the structure and properties are investigated by XRD, SEM, PL, UV-Vis spectrophotometry and ellipsometry. The Y-containing samples are shown to be solid solution phases between TAG and YAG. The PL intensity is 14 times stronger with the incorporation of 80 mol.% Y, and the D-5(4)-> F-7(5) emission lifetime of Tb3+ is prolonged from 0.357 to 3.035 ms at room temperature. A unique magnetoluminescence emerges upon the incorporation of Y, showing an interesting emission decrease to 55% as the Y content reaches 80 mol.%. Remarkably, this magnetoluminesence can occur at room temperature without an intense magnetic field. Based on our work, transparent (Tb1-xYx)(3)Al5O12 ceramics exhibit the potential for applications in green emitters, optical instruments and photoelectric devices. In particular, the magnetoluminescence provides a simple, noncontact and nondestructive route for probing magnetic fields.

关键词

作者关键词:(Tb1-xYx)(3)Al5O12; Optical properties; Magnetic properties

KeyWords Plus:UP-CONVERSION LUMINESCENCE; MAGNETOOPTICAL PROPERTIES; ENERGY-TRANSFER; GREEN; FABRICATION; DEPENDENCE; PHOSPHORS; CRYSTAL; GARNET; NANOCRYSTALS

Photoluminescence and unique magnetoluminescence of transparent (Tb1-xYx)(3)Al5O12 ceramics.pdf