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

doi:10.1007/s40242-015-4460-4

高等学校化学研究 ›› 2015, Vol. 31 ›› Issue (3): 427-429.doi: 10.1007/s40242-015-4460-4

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

ZUO Yinyan¹, CHEN Xia², LIU Xiaobin¹

1. Department of Physics, Tianshui Normal University, Tianshui 741000, P. R. China;
2. College of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China

收稿日期:2014-12-03 修回日期:2014-12-22 出版日期:2015-06-01 发布日期:2015-05-22
通讯作者: ZUO Yinyan E-mail:zuoyinyan@163.com
基金资助:
Supported by the National Natural Science Foundation of China(No.11264033) and the Science Research Foundation of Tianshui Normal University, China(No.TSA1108).

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

ZUO Yinyan¹, CHEN Xia², LIU Xiaobin¹

1. Department of Physics, Tianshui Normal University, Tianshui 741000, P. R. China;
2. College of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China

Received:2014-12-03 Revised:2014-12-22 Online:2015-06-01 Published:2015-05-22
Contact: ZUO Yinyan E-mail:zuoyinyan@163.com
Supported by:
Supported by the National Natural Science Foundation of China(No.11264033) and the Science Research Foundation of Tianshui Normal University, China(No.TSA1108).

摘要/Abstract

摘要：

Red long lasting phosphorescence(LLP) was firstly observed in LaAlO₃: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 LaAlO₃:0.6%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 thermoluminescence reveals that the excellent LLP performance of LaAlO₃:Eu³⁺ material originates from the rich distribution of shallow traps(E=0.7875 eV).

关键词: LaAlO₃:Eu³⁺, Long lasting phosphorescence, Luminescence

Abstract:

Key words: LaAlO₃:Eu³⁺, Long lasting phosphorescence, Luminescence

ZUO Yinyan, CHEN Xia, LIU Xiaobin. Long Lasting Phosphorescence Properties and Multi-peak Fitting on Thermoluminescence of Red LaAlO₃: Eu³⁺ Phosphor[J]. 高等学校化学研究, 2015, 31(3): 427-429.

ZUO Yinyan, CHEN Xia, LIU Xiaobin. Long Lasting Phosphorescence Properties and Multi-peak Fitting on Thermoluminescence of Red LaAlO₃: Eu³⁺ Phosphor[J]. Chemical Research in Chinese Universities, 2015, 31(3): 427-429.

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

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

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