Luminescent Properties of A Novel Terbium Complex Tb(o-BBA)_3(phen)  

作　　者：刘玲 徐征 娄志东 张福俊 孙波 裴娟 

机构地区：[1]Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044,China [2]Key Laboratory of Luminescence and Optical Information, Ministry of Education [3]Department of Materials Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China [4]Department

出　　处：《Journal of Rare Earths》2006年第2期253-256,共4页稀土学报（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina(60576016;10374001;10434030)and"973"Nation-alKeyBasicResearchFoundationofChina(2003CB314707)

摘　　要：A novel rare earth complex of terbium ion with 2-benzoylbenzoic acid and 1, 10-phenathroline （Tb（o-BBA）3 （phen）, o-BBA-2-benzoylbenzoic acid, phen = 1, 10-phenathroline） was used as an electroluminescent material for the first time. The Tb complex was blended with poly（N-vinylcarbazole） （PVK） in different weight ratios and spinn to coated into films （noted as PVK ：Tb films）. The photoluminescence （PL） properties of films were investigated and the optimum weight ratio between PVK and Tb（o-BBA）3（phen） was found to be 3：1. Monolayer devices with the structure ITO/PVK： Tb/AI were fabricated and emitted green light, which was characteristic of Tb^3＋ emission. The results show that mecha- nisms for PL and EL are different. The PL is considered to be caused because of energy transfer and direct excitation to the Tb（o-BBA）3（phen） molecule, while EL is mainly on charging trapping.A novel rare earth complex of terbium ion with 2-benzoylbenzoic acid and 1, 10-phenathroline （Tb（o-BBA）3 （phen）, o-BBA-2-benzoylbenzoic acid, phen = 1, 10-phenathroline） was used as an electroluminescent material for the first time. The Tb complex was blended with poly（N-vinylcarbazole） （PVK） in different weight ratios and spinn to coated into films （noted as PVK ：Tb films）. The photoluminescence （PL） properties of films were investigated and the optimum weight ratio between PVK and Tb（o-BBA）3（phen） was found to be 3：1. Monolayer devices with the structure ITO/PVK： Tb/AI were fabricated and emitted green light, which was characteristic of Tb^3＋ emission. The results show that mecha- nisms for PL and EL are different. The PL is considered to be caused because of energy transfer and direct excitation to the Tb（o-BBA）3（phen） molecule, while EL is mainly on charging trapping.

关 键 词：Tb complex energy transfer charge trapping ELECTROLUMINESCENCE rare earths 

分 类 号：TN312.8[电子电信—物理电子学]