Influence of Mechanical Milling and Annealing Atmosphere on the Photoluminescence Properties of ZnS∶Cu,Cl Phosphors
ZnS∶Cu,Cl phosphors were synthesized by high temperature (1200 ℃) solid state reaction,mechanical milling (rotation speed =0,75,150,250 and 350 r / min) and the final annealing at 750 ℃ for 1 h in different atmospheres (hydrogen sulfide,sealed evacuated silica tubes and Ar).The as-prepared phosphors were characterized by X-ray powder diffraction and photoluminescence spectra.It was found that mechanical milling led to width increases of diffraction peaks.Both the mechanical milling and atmosphere play important roles in the photoluminescence performance of the phosphors.Some phosphors prepared by the three-step method possess higher photoluminescence performances than the normal one-step method.Particularly,the luminescence intensity of the phosphor milled at the rotation speed of 75 r / min and then treated in Ar atmosphere is about one time higher than that prepared by the normal one-step process.
ZnS Photoluminescence Mechanical milling
Wen-Deng Wang Fu-Qiang Huang Yu-Juan Xi Xin-Ping Lin Min-Ling Liu Jian-Lin Shi
State Key Laboratory of High Performance Ceramics and Superfine Microstructures,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,P.R.China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
312-314
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）