Yellow Persistent Phosphor Ba13.35Al30.7Si5.3O70:Eu2+,Tm3+ from the Energy Regulation of Rare-Earth Ions

Haijing Jiang; Yonglei Jia; Tianliang Qu; Yao Pan; Kaiyong Yang; Hui Luo

doi:10.1021/acsomega.9b00180

Yellow Persistent Phosphor Ba_13.35Al_30.7Si_5.3O₇₀:Eu²⁺,Tm³⁺ from the Energy Regulation of Rare-Earth Ions

ACS Omega. 2019 Apr 16;4(4):6923-6930. doi: 10.1021/acsomega.9b00180. eCollection 2019 Apr 30.

Authors

Haijing Jiang¹, Yonglei Jia², Tianliang Qu², Yao Pan², Kaiyong Yang², Hui Luo²

Affiliations

¹ State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
² Department of Photoelectric Engineering, College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, Hunan 410073, P. R. China.

Abstract

The luminescence properties of Ba_13.35Al_30.7Si_5.3O₇₀:Eu²⁺ and Ba_13.35Al_30.7Si_5.3O₇₀:Eu²⁺,Tm³⁺ phosphors are presented. After being excited by a light source, Ba_13.35Al_30.7Si_5.3O₇₀:Eu²⁺,Tm³⁺ phosphors emit intense yellow long persistent luminescence covering the region from 450 to 700 nm, which can last about 8 h. Thermoluminescence curves were demonstrated to analyze the trapping nature of persistent luminescence. Tm³⁺ is added to improve the long persistent luminescence properties of phosphors. The mechanism of persistent luminescence has been studied.