东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

Spectral Characteristics of White Organic Light-emitting Diodes Based on Novel Phosphorescent Sensitizer

ISSN号：1674-0068
期刊名称：《化学物理学报》
时间：0
分类：TN244[电子电信—物理电子学] TN312.8[电子电信—物理电子学]
作者机构：[1]State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China
相关基金：ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China （No.60425101）, the Program for the New Century Excellent Talents in University of Ministry of Education of China （No.NCET-06-0812）, and the Young Talent Project of University of Electronic Science and Technology of China （No.060206）.

作者： Xiao-qing Tang Jun-sheng Yu Lu Li Wen Wen Ya-dong Jiang[1]

关键词：光谱特性, 有机发光二极管, 发光性质, 光感性能, 物理性能, White organic light-emitting diode, Phosphorescent sensitizer, Spectrum analysis

中文摘要：

白器官的轻射出的二极管被使用新奇磷光二度( 1,2-dipheny1-1H-benzoimidazole )制作铱( acetylacetonate )[( pbi ) ₂红外(交流交流)]作为 sensitizer 和4-( dicyanomethylene )的荧光灯的染料， -2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran ( DCJTB )鳕鱼打开了进 car-bazole 聚合物 poly ( N-vinylcarbazole )( PVK )。通过描绘紫外力的吸收系列，光致发光系列(pbi )₂ 红外(交流交流) 和 DCJTB，和电镀物品光光谱 WOLED 的性质，鳕鱼的精力转移机制打开了聚合物系统被推出。结果证明有不同紧张的光系列(pbi )₂ 红外(交流交流) 和 DCJTB 在混合系统的 EL 系列是共存的，它在 EL 进程被归功于到不完全的精力转移进程。在主人和客人之间的有效 Förster 和右边的精力转移启用了强壮的黄排出物从(pbi )₂ 红外(交流交流) 和 DCJTB，在此(pbi )₂ 红外(交流交流) 为 DCJTB 作为发磷光的 sensitizer 起一个重要作用。与 N 的蓝发射极层， N'-diphenyl-N， N'-bis (1-naphthyl )(1,1'-biphenyl )-4,4'-diamine, 鳕鱼打开了系统设备完成的白排放。鳕鱼打开了系统证明它的委员会共产国际歌 de 1'Eclairage 坐标比发磷光的做的 PVK 系统的那些更独立于偏爱电压的变化。

英文摘要：

White organic light-emitting diodes were fabricated by using a novel phosphorescence bis（1,2-diphenyl-1H-benzoimidazole）iridium（acetylacetonate）[（pbi）2Ir（acac）] as sensitizer and a fluorescent dye of 4- （dicyanomethylene）-2-t-butyl-6-（1,1,7,7-tetramethyljulolidyl-9-enyl）-4H-pyran （DCJTB） codoped into a carbazole polymer of poly（N-vinylcarbazole）（PVK）. Through characterizing the UV-Vis absorption spectra, the photoluminescence spectra of （pbi）2Ir（acac） and DCJTB, and the electroluminescence spectral properties of the WOLEDs, the energy transfer mechanisms of the codoped polymer system were deduced. The results demonstrate that the luminescent spectra with different intensity of （pbi）2Ir（acac） and DCJTB were co-existent in the EL spectra of the blended system, which is ascribed to an incomplete energy transfer process in the EL process. The efficient Forster and Dexter energy transfer between the host and the guests enabled a strong yellow emission from （pbi）2Ir（acac） and DCJTB, where （pbi）2Ir（acac） plays an important role as a phosphorescent sensitizer for DCJTB. With the blue emitting-layer of N,N＇-diphenyl-N,N＇-bis（1- naphthyl）（1,1＇-biphenyl）-4,4＇-diamine, the codoped system device achieved white emission. The codoped system showed that its Commissions Internationale de 1＇Eclairage coordinates were more independent of the variation of bias voltage than those of phosphorescent doped PVK systems.

同期刊论文项目