Infrared Luminescent Properties of a Pr-Doped KBr Submicron Rod  

作　　者：WEI Feng-Wei ZHANG Xiao-Song LI Lan XU Jian-Ping ZHOU Yong-Liang LIU Pei 魏凤巍;张晓松;李岚;徐建萍;周永亮;刘佩(Institute of Material Physics,Key Laboratory of Display Materials and Photoelectric Devices(Ministry of Education),Tianjin University of Technology,Tianjin 300384)

机构地区：[1]Institute of Material Physics,Key Laboratory of Display Materials and Photoelectric Devices(Ministry of Education),Tianjin University of Technology,Tianjin 300384

出　　处：《Chinese Physics Letters》2011年第7期290-293,共4页中国物理快报（英文版）

基　　金：by the National Natural Science Foundation of China under Grant Nos 60877029,10904109,60977035 and 60907021;the Natural Science Foundation of Tianjin(Nos 09JCYBJC01400 and 11JCYBJC00300);the Natural Science Foundation of the Tianjin Education Committee(No 20071207);Tianjin Key Subject for Materials Physics and Chemistry.

摘　　要：KBr:Pr with a submicron rod structure is successfully synthesized by a solid-state reaction using absolute alcohol as the abrasive.X-ray diffraction,scanning electron microscopy,photoluminescence spectra and fluorescence decay curves are used to characterize the resulting materials.The influences of Pr^(3+)dopant concentration on the luminescence and lifetime are discussed.Furthermore,luminescent measurements show that KBr:Pr has a high emission intensity compared with other Pr-doped matrixes,which is related to the low phonon energy of KBr.The results suggest that the phonon energy of the host is important in determining the luminescent efficiency.

关 键 词：materials KBR LIFETIME 

分 类 号：TB3[一般工业技术—材料科学与工程]