Long Lasting Phosphorescence Properties and Multi-peak Fitting on Thermoluminescence of Red LaAlO3∶Eu3＋ Phosphor

Red long lasting phosphorescence（LLP） was firstly observed in LaA103：Eu3＋ phosphor synthesized by solid state method at 1773 K. It reveals that the Eu3＋ ions occupy the asymmetric La3＋ sites, resulting in the orange-red emission of Eu3＋. The LLP of the optimum LaA103：0.6%Eu3＋ sample can come to abou...

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Published in:Chemical research in Chinese universities 2015-06, Vol.31 (3), p.427-429
Main Authors: Zuo, Yinyan, Chen, Xia, Liu, Xiaobin
Format: Article
Language:English
Subjects:
Analytical Chemistry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Inorganic Chemistry
Organic Chemistry
Physical Chemistry
光特性
律师事务所
拟合方法
热释光
磷光
红色发光
荧光粉
铕离子
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Liu, Xiaobin
description Red long lasting phosphorescence（LLP） was firstly observed in LaA103：Eu3＋ phosphor synthesized by solid state method at 1773 K. It reveals that the Eu3＋ ions occupy the asymmetric La3＋ sites, resulting in the orange-red emission of Eu3＋. The LLP of the optimum LaA103：0.6%Eu3＋ sample can come to about 2000 s according to a definition of 0.32 mcd/m2. The LLP decay curve can not be fitted even by a function of three exponential terms, due to the complicated retrapping process of carriers. The result of a classical multi-peak fitting method on thermo- luminescence reveals that the excellent LLP performance of LaA103：Eu3＋ material originates from the rich distribu- tion of shallow traps（E=0.7875 eV）.
doi_str_mv 10.1007/s40242-015-4460-4
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subjects Analytical Chemistry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Inorganic Chemistry
Organic Chemistry
Physical Chemistry
光特性
律师事务所
拟合方法
热释光
磷光
红色发光
荧光粉
铕离子
title Long Lasting Phosphorescence Properties and Multi-peak Fitting on Thermoluminescence of Red LaAlO3∶Eu3＋ Phosphor
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