Abstract

We report a large enhancement of yellow photostimulated luminescence (PSL) by codoping ${\mathrm{Tm}}^{3+}$ in ${\mathrm{Sr}}_3{\mathrm{SiO}}_5\text{:}{\mathrm{Eu}}^{2+}$ upon infrared stimulation at 980 nm after pre-exposure in Ultraviolet light. The initial PSL intensity and light storage capacity are enhanced by a factor of 33 and 2, respectively, for ${\mathrm{Tm}}^{3+}$ concentration at 0.0004. The thermoluminescence spectra indicate that codoping ${\mathrm{Tm}}^{3+}$ generates a trap peaking at 385 K. The trap is much more sensitive to infrared light than the original one, so that the light storage period of the material is beyond tens of days with the minimum detectable infrared power density only $54\mathrm{\mu W}/{\mathrm{cm}}^2$.

© 2013 Optical Society of America

Near infrared photostimulated persistent luminescence and information storage of SrAl₂O₄:Eu²⁺,Dy³⁺ phosphor

Haibo Liu, Baoluo Feng, Li Luo, Chunlong Han, and Peter A. Tanner
Opt. Mater. Express 6(11) 3375-3385 (2016)

Modulating trap properties by Nd³⁺- Eu³⁺ co-doping in Sr₂SnO₄ host for optical information storage

Caiyan Wang, Zhehan Zheng, Ying Zhang, Qian Liu, Mingxue Deng, Xiaoke Xu, Zhenzhen Zhou, and Huan He
Opt. Express 28(3) 4249-4257 (2020)

Design, synthesis and characterization of an orange-yellow long persistent phosphor: Sr₃Al₂O₅Cl₂:Eu²⁺,Tm³⁺

Yanqin Li, Yuhua Wang, Yu Gong, Xuhui Xu, and Meijiao Zhou
Opt. Express 18(24) 24853-24858 (2010)

Photochromism and near-infrared persistent luminescence in Eu²⁺-Nd³⁺-co-doped CaAl₂O₄ ceramics

Jumpei Ueda, Tatsuaki Shinoda, and Setsuhisa Tanabe
Opt. Mater. Express 3(6) 787-793 (2013)

Persistent luminescence fading in Sr₂MgSi₂O₇:Eu²⁺,R³⁺ materials: a thermoluminescence study

Hermi F. Brito, Jorma Hölsä, Högne Jungner, Taneli Laamanen, Mika Lastusaari, Marja Malkamäki, and Lucas C.V. Rodrigues
Opt. Mater. Express 2(3) 287-293 (2012)