CAJ | 학술논문

采用传统的高温固相法合成了不同形状的铌酸钙基质发光材料，利用XRD、 SEM以及荧光光谱（ PL）对样品的结构、形貌与光学性能进行了表征测试。用200～350 nm紫外光激发样品时，可见光区的发射峰位于350～650 nm，呈白光发射，该发射带是由铌酸钙基质的发射峰和Bi3＋离子以及Pr3＋离子的电子轨道跃迁所产生的发射峰组成；同时本文也探讨了不同掺杂条件对发光性能的影响，对所制备材料的发光机理也进行了初步的分析。
채용전통적고온고상법합성료불동형상적니산개기질발광재료，이용XRD、 SEM이급형광광보（ PL）대양품적결구、형모여광학성능진행료표정측시。용200～350 nm자외광격발양품시，가견광구적발사봉위우350～650 nm，정백광발사，해발사대시유니산개기질적발사봉화Bi3＋리자이급Pr3＋리자적전자궤도약천소산생적발사봉조성；동시본문야탐토료불동참잡조건대발광성능적영향，대소제비재료적발광궤리야진행료초보적분석。
Different shapes of calcium niobate -based luminescent materials were synthesized by using a traditional high-temperature solid method , and the structures , morphologies and optical properties of products prepared were characterized by using XRD , SEM and photoluminescence spectrum ( PL ) , respectively.The emission band of the samples prepared was at 350~650 nm in the visible range under 200~350 nm UV-light excitation , the emission band of the materials was consisted of the emission peaks of calcium niobate and Bi 3+and Pr3 +which generated by electronic orbital transition of bismuth ion and praseodymium ion.Meanwhile , the different doping conditions with effect on the optical properties of the samples prepared were also investigated , and the luminescent mechanism of materials prepared was discussed preliminary.