Luminescence properties of Ba2LiB5O10:Dy3+ phosphor

作者：Liu, Yufeng^*; Yang, Zhiping; Yu, Quanmao; Li, Xu; Yang, Yanmin; Li, Panlai

来源：Materials Letters, 2011, 65(12): 1956-1958.

DOI：10.1016/j.matlet.2011.04.002

• Luminescence
• Phosphors
• Dy3+

A novel warm white phosphor Ba2LiB5O10:Dy3+ with various Dy3+ concentrations was synthesized by the conventional solid-state reaction at 800 C. The crystal structure of the phosphor was characterized by X-ray diffraction (XRD). The photoluminescence properties of Ba2LiB5O10:Dy3+ were investigated, and the critical concentration of the activator ion (Dy3+) was found to be 0.04 mol per formula unit. Under the ultraviolet excitation of 348 nm, the phosphor presented warm white luminescence with dominating emissions at 484.6 and 577 nm, corresponding to F-4(9/2)-H-6(15/2), F-4(9/2)-H-6(13/2) transitions, respectively. The chromatic properties of the typical sample Ba2LiB5O10:Dy3+ phosphor have been found to have chromaticity coordinates of x = 0.31 and y = 0.35.

• 出版日期2011-6-30
• 单位河北大学; 江西财经大学