液晶与显示2003，Vol.18Issue(3)：169-174,6.
有机电致发光器件中复合发光的电场和温度关系
Electric-field and Temperature Dependence of the Carrier Recombination in Organic Light-emitting Devices
摘要
Abstract
A theory model and complete analytic function for fission and recombination of exci-tons in single layer organic light-emitting devices were presented. The calculated results indicate that (1) the recombination probability of excitons is decreased slowly with applied electric field increasing, and then decreased abruptly when applied electric field reaches a threshold va-lue; (2) the recombination probability of the charge carriers keeps decreasing with temperature but the conversion efficiency of the devices is basically independent of the temperature; (3) the current-voltage characteristics show that fixing the cathode barrier and varying the anode barrier will result in the transition between space-charge-limited and contact-limited current flow. (4) the recombination efficiency is enhanced firstly and then decreased sharply and exists an optimum barrier value as applied voltage increasing. The results could explain the related experimental phenomena.关键词
有机电致发光器件/复合发光/电场/温度Key words
organic light-emitting devices/carrier recombination/electric-field/temperature分类
信息技术与安全科学引用本文复制引用
李宏建,易丹青,谢自芳,周仁龙,许雪梅,彭景翠..有机电致发光器件中复合发光的电场和温度关系[J].液晶与显示,2003,18(3):169-174,6.基金项目
Supported by the Natural Science Foundation of the Educational Department of Hunan Province (No.2000B006) （No.2000B006）
the Key Science Foundation of Hunan University(No.2002A08). （No.2002A08）
