Synthesis and Luminescence Properties of Non-Doped Long Persistent Phosphors : Mg2SnO4
A white long persistence phosphor was synthesized in a single-phase of Mg2SnO4 which was synthesized by a solid-state reaction. This phosphor crystallized in an inverse spinel structure and showed a broad-band emission from 350nm to 700nm. The afterglow was observed upon the excitation by 254nm. A Li-doped Mg2SnO4 sample showed a higher photoluminescence intensity and a longer lifetime than the non-doped one.
Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
A. Torisaka et al., "Synthesis and Luminescence Properties of Non-Doped Long Persistent Phosphors : Mg2SnO4", Key Engineering Materials, Vols. 421-422, pp. 352-355, 2010