A novel green-emitting phosphor NaSrBO3:Tb3+, Li+

作者：Yang Fan; Liang Yujun^*; Lan Yazhu; Gao Wenjin; Liu Mingyu; Li Xuejing; Huang Wenzhu; Li Yunli; Xia Zhanggen

来源：Materials Letters, 2012, 83: 59-61.

DOI：10.1016/j.matlet.2012.05.105

• Luminescence
• Phosphors
• Borates

A novel green phosphor NaSrBO3:Tb3+. Li+ was synthesized by the solid state reaction. The crystal structure, photoluminescence properties and concentration quenching of NaSrBO3:Tb3+, Li+ phosphor were systematically investigated. The phosphor shows monoclinic structure and the optimal Tb3+ concentration in NaSrBO3: Tb3+, Li+ is 6 mol%. The phosphor presents bright green emission centered at 542 nm corresponding to D-5(4)-> F-7(5) transition of Tb3+ ions under the ultraviolet excitation of 378 nm. The concentration quenching mechanism can be mainly attributed to the quadrupole-quadrupole interaction. The present work suggests that NaSrBO3:Tb3+, Li+ phosphor is a potential green-emitting phosphor for UV LEDs.

• 出版日期2012-9-15
• 单位中国地质大学（北京）