Green emitting long lasting phosphorescence (LLP) properties of Mg 2SnO4:Mn²⁺ phosphor

Authors

Bingfu Lei, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
Bin Li, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
Xiaojun Wang, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
Wenlian Li, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences

Document Type

Article

Publication Date

6-1-2006

Abstract

A novel long-lasting phosphorescence phosphor, Mn2+-activated Mg2SnO4, has been synthesized and its optical properties have been investigated. The Mg2SnO4:Mn2+ emits green light with high luminance, upon UV irradiation, centered at 499 nm from the spin forbidden transitions of the d-electrons in Mn2+ ions. The CIE chromaticity coordinates of the Mg2SnO4:Mn 2+ phosphor are x=0.0875 and y=0.6083 under 254 nm UV excitation. The phosphorescence can be observed by the naked eyes (0.32 mcd/m2) in the dark clearly for over 5 h after the 5 min UV irradiation. Thermoluminescence has been studied and the mechanism of the long-lasting phosphorescence has been discussed.

Publication Source (Journal or Book title)

Journal of Luminescence

First Page

173

Last Page

178

Recommended Citation

Lei, B., Li, B., Wang, X., & Li, W. (2006). Green emitting long lasting phosphorescence (LLP) properties of Mg 2SnO4:Mn²⁺ phosphor. Journal of Luminescence, 118 (2), 173-178. https://doi.org/10.1016/j.jlumin.2005.08.010