武汉工程大学学报2024，Vol.46Issue(2)：162-166,5.DOI:10.19843/j.cnki.CN42-1779/TQ.202303001
BaZnOS:Bi3+荧光粉的制备及光学性能研究
Preparation and optical properties of BaZnOS:Bi3+ phosphor
摘要
Abstract
A series of blue-green BaZnOS phosphors doped with bismuth(Bi)was synthesized by a high temperature solid-state method using barium carbonate,zinc sulfide and bismuth oxide as raw materials.The correlation between site occupation,unit cell change and luminescence properties of Bi in BaZnOS was studied.In BaZnOS,according to the principle of the same ion coordination and similar radius,Ba is the most suitable and stable site for Bi to occupy.Because the radius of Bi3+ is slightly smaller than that of Ba2+,the unit cell parameters after doping are reduced.Under the ultraviolet light excitation of 372 nm,both BaZnOS and BaZnOS:Bi3+ phosphors showed very wide emission bands at 400-600 nm.The luminescence of undoped BaZnOS is attributed to the oxygen vacancy defects in the synthesis process,and after doping with Bi3+,Bi3+ can be combined into the lattice of BaZnOS.Due to the 3P1,0→1S0 transition of Bi3+,the photoluminescence is further enhanced by about 2-3 times at 400-600 nm.Calculation of chromaticity coordinates showed that the chromaticity coordinates of prepared BaZnOS:Bi3+ phosphors are all located in the blue-green region,and the BaZnOS:Bi3+ phosphors can be used as potential phosphors to emit white light in coordination with red light,and they can be used in the field of white light-emitting diodes.关键词
四元硫氧化物/蓝绿色荧光粉/光致发光激发光谱/光致发光光谱/能级跃迁Key words
quaternary sulfur oxides/blue-green phosphors/photoluminescence excitation spectra/photoluminescence spectra/energy level transition分类
数理科学引用本文复制引用
罗娟,陈世碧,李孝斌,郑小州,王昶,岳励,徐慢,戴武斌..BaZnOS:Bi3+荧光粉的制备及光学性能研究[J].武汉工程大学学报,2024,46(2):162-166,5.基金项目
武汉工程大学第十四届研究生教育创新基金(CX2022242) （CX2022242）
湖北三峡实验室创新基金(SC212003) （SC212003）
