双掺杂聚合物电致发光中能量传递的光谱分析  

Spectral Properties of Energy Transfer in Doubly Doped Polymer Electroluminescence

作　　者：章婷[1] 徐征[1,2] 滕枫[1] 钱磊[1] 王永生[1] 徐叙瑢[1] 

机构地区：[1]北京交通大学光电子技术研究所信息存储,显示与材料部级开放实验室,北京100044 [2]天津大学博士后流动站天津经济技术开发区博士后工作站天津中环三津有限公司分站

出　　处：《光谱学与光谱分析》2006年第1期19-22,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金(10374001;10434030);"973"国家重大基础研究项目(2003CB314707);北京市自然科学基金(2032015);博士点基金(20020004004);北京交通大学攀登计划基金(PD197;PD198)资助项目

摘　　要：将两种荧光染料掺杂到有机聚合物中,制作了双掺杂的电致发光器件ITOPVK:TPB:RubreneLiFAl,得到了聚合物与两种荧光染料之间的阶梯式的能量传递。当PVK作为能量给体,Rubrene为能量受体时,能量传递不是很有效。但通过研究共掺杂体系的发光性质,发现辅助染料TPB的加入,作为能量传递的桥梁,提高了能量传递的效率,从而增加了器件的色纯度。The authors report a cascade energy transfer based on the long-range dipole-dipole Foerster energy transfer between polymer and two fluorescent dyes in solid thin films. The authors studied the fabrication and emission characteristics of a new doubly doped system for color purity and energy transfer efficiency, in which two fluorescent dyes, i.e. TPB and Rubrene were doped into PVK. In the blend film, PVK acted as the energy donor, Rubrene as the fluorescent dye, and the assistant dopant TPB was used to facilitate the energy transfer from PVK to the dye Rubrene. Orange emission comes from Rubrene via a cascade energy transfer from PVK to TPB and then from TPB to Rubrene.

关 键 词：双掺杂 能量传递 电致发光 

分 类 号：TN383.1[电子电信—物理电子学]