CAJ | 학술논문

　　用高温固相法制备了铕镝掺杂的铝酸锶长余辉发光材料，通过改变Sr/Al使该类材料各自发紫光、蓝光、蓝绿光、绿光、黄绿光和黄光。光谱分析表明，当Sr/Al=0.4时发光强度最强，余辉时间最长，此时材料发黄绿光。随着Sr/Al的减小，材料的发射光谱峰值波长蓝移，激发光谱峰值波长先红移后蓝移。XRD分析可知，Sr/Al的改变使材料的晶形结构发生改变，从而影响了材料的发光性能。
　　용고온고상법제비료유적참잡적려산송장여휘발광재료，통과개변Sr/Al사해류재료각자발자광、람광、람록광、록광、황록광화황광。광보분석표명，당Sr/Al=0.4시발광강도최강，여휘시간최장，차시재료발황록광。수착Sr/Al적감소，재료적발사광보봉치파장람이，격발광보봉치파장선홍이후람이。XRD분석가지，Sr/Al적개변사재료적정형결구발생개변，종이영향료재료적발광성능。
Europium and dysprosium co-doped strontium aluminates long persistence phosphors was synthesized by the solid phase. This kind of material could respectively emit purple, blue, blue-green, yellow-green, yellow light by means of the alteration of Sr/Al. Spectra test revealed the material had the best luminescence intensity and the longest afterflow when Sr/Al=0.4, it emited yellow-green light. Wave length of emission spectra peak shifted to shortwave with the reduction of Sr/Al. While wave length of excitation spectra peak firstly shifted to shortwave after shift to longwave. XRD showed the alteration of Sr/Al made crystal structure change, therefore, Sr/Al affected on lumi-nescence properties of this material.