Luminescence Characteristics and Energy Transfer Machanismof LaOBr:Tb^(3+) (Dy^(3+))
Luminescence Characteristics and Energy Transfer Machanism of LaOBr:Tb^(3+) (Dy^(3+))作者机构:Institute of Solid State Physics Siping Normal University Siping 136000 China Siping Teachers College Siping 136000 China Changchun Institute of Physics Chinese Academy of Sciences Changchun 130019 China
出 版 物:《Journal of Materials Science & Technology》 (材料科学技术(英文版))
年 卷 期:1997年第13卷第6期
页 面:479-482页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
主 题:Dy Br Luminescence Characteristics and Energy Transfer Machanismof LaOBr nm
摘 要:The rare earth luminescence materials LaOBrfTb3+(Dy3+) were synthesized at high temperature,and the structure and luminescence characteristics were studied. The co-doping Dy3+ may make the energy of 5D3 of Tb3+ transfer to 5D4 level, which makes the emission of 5D4-7FJ (J=0,1... 6), specially of 5D4-7F5, enhance obviously, and the total brightness is increased by about 40% in comparison with the samples without Dy3+ cations, as a result of the energy transfer of dipole-dipole interaction.