Synthesis and Properties of Eu^3＋ Activated Strontium Molybdate Phosphor

• Published in: Journal of rare earths Vol. 25; no. 6; pp. 706 - 709
• Main Author: 李旭 杨志平 关丽 郭庆林 怀素芳 李盼来
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 2007
• Subjects: luminescent intensity; molybdate; O482.3; rare earths; red phosphor; white light emitting diodes (WLED); XRD; 光学性质; 发光二极管; 磷光体; 钼酸盐; O482.3; red phosphor; molybdate; white light emitting diodes (WLED); luminescent intensity; XRD; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(08)60011-3

In order to prepare fluorescent material for white Light Emitting Diodes （LEDs）, a new Eu^3＋ activated molybdate phosphor SrMoO4 was fabricated with solid-state method. X-ray diffraction （XRD） showed that the doping of trivalent europium ion reduced the lattice parameters. The excitation and emission spectra indicated that this phosphor could be excited effectively by the visible light, and then emitted red light with the peaks located at 616 and 624 nm. The influence of Eu^3＋ concentration on the luminescent properties of Eu^3＋ doped SrMoO4 was investigated and the 25% （mole fraction） was the appropriate molar concentration. The reaction time and temperature had obvious effect on the luminescent properties. The luminescent intensity reached the strongest when it was sintered at 800 ℃ for 3 h.