%A KUANG Qing-liang;LI Yong-jin*;QIU Jian-bei;YIN Zhao-yi;YANG Zheng-wen;SONG Zhi-guo*;WAN Rong-hua;LIU Qun;ZHOU Yu-ting
%T Synthesis and Luminescence Properties of BiOCl∶Dy3+ Phosphors for NUV Excited White Light-Emitting Diodes
%0 Journal Article
%D 2015
%J SPECTROSCOPY AND SPECTRAL ANALYSIS
%R 10.3964/j.issn.1000-0593(2015)04-0889-05
%P 889-893
%V 35
%N 04
%U {https://www.gpxygpfx.com/CN/abstract/article_7598.shtml}
%8 2015-04-01
%X In the present paper, we reported the luminescence properties of BiOCl∶Dy3+ and BiOCl∶Dy3+, Li+ phosphor synthesized by conventional solid state method. X-ray diffraction (XRD) and excitation and emission spectroscopy were used to characterize the samples. Results show that pure tetragonal BiOCl∶Dy3+ crystals can be synthesized successfully at 500 ℃, and Li+ ion dopant improves the crystallinity of samples furtherly. Under near UV light excitation, the samples give the characteristic luminescence of Dy3+ ions located at 478 (blue) and 574 nm (yellow), which show a low yellow-to-blue intensity ratio (Y/B) of Dy3+ emission and white light emission. Moreover, codoping of Li+ ion can realize the enhancement of emission intensity and the adjustment of emission color. The characteristics of BiOCl∶Dy3+ phosphor, low temperature preparation, good near ultraviolet excitation and white light emission make it to a promising near-ultraviolet WLED phosphor.