Luminescent properties of NaBaPO4: Eu3+ red-emitting phosphor for white light-emitting diodes

作者：Li Xu; Guan Li; Li Xiaoning; Wen Jianwei; ZhipingYang

来源：Powder Technology, 2010, 200(1-2): 12-15.

DOI：10.1016/j.powtec.2010.01.020

• LED
• Powder phosphor
• Eu3+
• NaBaPO4

Eu3+-activated NaBaPO4: phosphor has been synthesized by a high temperature solid state reaction and an efficient red emission under near-ultraviolet excitation is observed. The emission spectrum shows a dominant peak at 614 nm due to the D-5(0) -> F-7(2) transition of Eu3+. The excitation spectrum is coupled well with the emission of UV LED (350-410 nm) and blue LED (450-470 nm). The effect of the Eu3+ concentration on the luminescent properties of NaBaPO4:Eu3+ is studied. The results show that NaBaPO4:Eu3+ is a very appropriate red-emitting phosphor for white LEDs. In order to compensate for charge imbalance between Ba2+ and Eu3+ ions, univalent charge compensation (Na+, K+ and Li+) is added.

• 出版日期2010-6-15
• 单位河北大学