[20p-P10-1~29] 13.9 Optical properties and light-emitting devices

[20p-P10-13] Thermal Stability of Electron Traps in SrAl₂O₄:Eu Crystals

〇Mamoru Kitaura¹, Yuta Tsurumi¹, Akimasa Ohnishi¹, Tomoya Ishibashi², Shoko Furukawa², Hisaya Oda², Akio Yamanaka² (1.Yamagata Univ., 2.Chitose Inst. Sci. Tech.)

Keywords:SrAl2O4:Eu,Long persistent phosphorescent material,Electron Trap

This presentation concetrns the report on the themal stability of electron traps in SrAl₂O₄:Eu crystals studied by measurements of the spectra of thermally-stimulated luminescence and infrared absorption under irradiation with ultraviolet light in Eu²⁺ 4f-5d absorption region.