发光学报2017，Vol.38Issue(11)：1450-1456,7.DOI:10.3788/fgxb20173811.1450
Y3+掺杂对Sr1-x Cax Si2 O2 N2:Eu2+发光性能的影响
Effect of Y3+ Ions Doping on The Luminescence Properties of Sr1-xCaxSi2O2N2:Eu2+ Phosphors
摘要
Abstract
Sr1-xCaxSi2O2N2:Eu2+/Y3+(x =0, 0. 15, 0. 3, 0. 6, 0. 75, 0. 95) phosphors were prepared by a high temperature solid-state reaction method. The effect of Y3+ doping on the lumines-cence properties of the samples was studied. The results revealed that Y3+ ion doping may signifi-cantly improve the photoluminescence properties of MSi2 O2 N2:Eu2+( M=Ca, Sr) because the point defect result from the substitution of Y3+ ions for M2+ could inhibit the oxidization of Eu2+ to Eu3+. Besides, The Y3+ ion has smaller radius which could relax the expansion caused by the larger Eu2+in CaSi2O2N2:Eu2+. The structure of Sr1-xCaxSi2O2N2:Eu2+/Y3+ can solve more Eu2+ ions at an equal distortion degree. With the increasing of x values in Sr1-xCaxSi2O2N2:Eu2+/Y3+, the lumi-nescence intension ratio of Sr1-xCaxSi2O2N2:Eu2+/Y3+(B1-B6) to Sr1-xCaxSi2O2N2:Eu2+(A1-A6) raises (120% ~180%).关键词
Sr1-xCaxSi2O2N2:Eu2+/发光性能/稀土/Y3+掺杂Key words
Sr1-x Cax Si2 O2 N2:Eu2+/luminescence/rare earths/Y3+ doping分类
数理科学引用本文复制引用
李绪诚,邓朝勇,龙飞,李良荣,吴莘,龚新勇..Y3+掺杂对Sr1-x Cax Si2 O2 N2:Eu2+发光性能的影响[J].发光学报,2017,38(11):1450-1456,7.基金项目
国家然科学基金(51462003,61361012) （51462003,61361012）
贵州省自然科学基金(黔科合J字LKM[2011]15号)资助项目 Supported by National Natural Science Foundation of China(51462003,61361012) （黔科合J字LKM[2011]15号）
Natural Science Fund of Guizhou Province (LKM[2011]15) （LKM[2011]15）
