Journal of Non-Crystalline Solids （IF:2.488）
Volume 471, July 2017, Pages 446-451
Super broadband near-infrared luminescence in Ni2 +-Er3 + co-doped transparent glass ceramics
Jian Zheng, Yin Cheng*, Zhuoer Deng, Yin Xiong
Ni2+-Er3+ co-doped glass ceramics containing ZnGa2O4 nanocrystals were fabricated by in situ controlled crystallization method. Theadverse energy transfer betweenNi2+andEr3+couldbe suppressedin theZnGa2O4 glass ceramics. And the super-broadband infrared luminescence with full width at half maximum (FWHM) of about 400 nm covering 1.1–1.7μm wavelength region was observed in Ni2+-Er3+co-doped glass ceramics. The two lifetimes of 1NE-GC950 revealed that two luminescence mechanism involved in the luminescence process, Ni2+: 3T2g (3F) → 3A2g (3F) and Er3+: 4I13/2 → 4I15/2 respectively. Compared to that in the Ni2+/Er3+co-doped glass ceramic containing γ-Ga2O3and LaF3 nanocrystals, the nanocrystals in the present paper is just only one, ZnGa2O4 nanocrystals, and it could also present super-broadband luminescence.