Luminescence characteristics of LiCaBO_3:Tb~(3+) phosphor for white LEDs

• Published in: Journal of rare earths Vol. 28; no. 1; pp. 30 - 33
• Main Author: 王志军 杨志平 李盼来 郭庆林 杨艳民
• Format: Journal Article
• Language: English
• Published: College of Physics Science & Technology,Hebei University,Baoding 071002,China 2010
• Subjects: white LEDs; Tb~(3+); luminescence; LiCaBO_3; rare earths
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(09)60044-2

A novel green phosphor,LiCaBO3:Tb3+,was synthesized by solid state reaction method,its luminescence characteristics were investigated,and the formation of phosphors were confirmed by X-ray powder diffraction(XRD).Its excitation band extended from 220 to 400 nm,which was coupled well with the emission of UV LED(350-410 nm).It exhibited a strong green emission located at 544 nm with chromatic coordination(0.25,0.58).The emission intensities of LiCaBO3:Tb3+ phosphor were influenced by varying Tb3+ concentratio...