Structure and luminescence properties of Sm~(3+) doped Y_2MoO_6 phosphor under near ultraviolet ligh

• 作 者: 侯得健 潘锡翔 李金燕 周炜杰 叶信宇
• 机 构: School of Metallurgy and Chemistry Engineering,Jiangxi University of Science and Technology,MOE Key
• 出 处: Journal of Rare Earths
• 发表日期: 2017年04期
• 关键词: ultraviolet luminescence phosphor excitation purity schematic doping luminescent

A series of Sm~(3+) doped Y_2MoO_6 were prepared through high temperature solid state reaction technique. Their phase structures, morphologies and luminescence properties were investigated by X-ray diffraction(XRD), scanning electron microscopy(SEM) and photoluminescence spectrometry. The most intense absorption of Y_2MoO_6 host occurred at 367 nm. Energy transfer from host lattice to Sm~(3+) ions could be observed, and the schematic diagram of energy transfer was constructed. The critical energy transfer distance and energy transfer mechanism between Sm~(3+) ions were discussed in detail. Considering the high color purity and appropriate emission intensity, Sm~(3+) doped Y_2 MoO_6 could be a promising phosphor under near ultraviolet light excitation.

Their phase structures, morphologies and luminescence properties were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence spectrometry. A series of Sm ~ (3+) doped Y_2MoO_6 were prepared through high temperature solid state reaction technique The most intense absorption of Y_2MoO_6 host occurred at 367 nm. Energy transfer from host lattice to Sm ~ (3+) ions could be observed, and the schematic diagram of energy transfer was constructed. The critical energy transfer distance and energy transfer mechanism between Sm ~ (3+) ions were discussed in detail. Considering the high color purity and appropriate emission intensity, Sm ~ (3+) doped Y_2 MoO_6 could be a promising phosphor under near ultraviolet light excitation.