荧光粉
材料科学
离子
量子效率
兴奋剂
发光
光电子学
激发
发光二极管
二极管
白光
物理
量子力学
作者
Xiaoyong Huang,Heng Guo
标识
DOI:10.1016/j.ceramint.2018.03.043
摘要
A novel single-phased white-light-emitting phosphor Sm3+ doped LiCa3MgV3O12 (LCMV) was developed. The LCMV host was one self-activated bluish-green emitting phosphor, which possessed an efficient excitation band in the 250–400 nm wavelength range and showed an intense broadband bluish-green emission with internal quantum efficiency (IQE) of 39%. Doping Sm3+ ions in to LCMV host induced tunable-color emissions, due to the energy transfer from [VO4]3− to Sm3+ ions. Importantly, under 340 nm excitation, the LCMV:Sm3+ can emitted bright white light by combining the self-activated luminescence of LCMV host and the red emissions of Sm3+ ions, and the IQE of the white-emitting composition-optimized LCMV:0.01Sm3+ phosphors reached up to 45%. These white-emitting LCMV:Sm3+ phosphors have potential applications in white light-emitting diodes and optical display devices.
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