The Emission Mechanisms of Two Kinds of Tb Complexes Doped in PVK System
XU Ying1, DENG Zhen-bo1*, XU Deng-hui1, XIAO Jing1, WANG Rui-fen2
1. Institute of Optoelectronic Technology, Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China 2. Department of Chemistry, Hebei Normal University, Shijiazhuang 050091, China
Abstract：Two kinds of new rare earth complexes Tb(p-MBA)3phen (sample Ⅰ) and Tb(p-ClBA)3phen (sample Ⅱ) were synthesized, and photoluminescence (PL) and electroluminescence (EL) characteristics of the terbium complex and PVK blended system were investigated. As to the sample Ⅰ, the emission of PVK was completely restrained in the EL spectra of the blended film; while in the PL spectra, obvious emission of PVK appeared besides the emission of Tb3+. But as to the sample Ⅱ, only the green emission from Tb3+ can be observed in both PL and EL spectra of the doping system. So there are two processes that occur in sample Ⅰ, one is the incomplete Frster energy transfer process from PVK to the Tb complex, and the other is the carrier charge trapping process. The main mechanism of sample Ⅱ is the energy transfer process.
徐颖1,邓振波1*,徐登辉1,肖静1,王瑞芬2 . 两种铽配合物与PVK混合体系的发光机理研究[J]. 光谱学与光谱分析, 2006, 26(05): 812-815.
XU Ying1, DENG Zhen-bo1*, XU Deng-hui1, XIAO Jing1, WANG Rui-fen2 . The Emission Mechanisms of Two Kinds of Tb Complexes Doped in PVK System. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(05): 812-815.
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