Electroplex emission from bilayer LED based on 1-phenyl-3-(dimethyl-amino) styryl-5-(p-(dimethylamino) phenyl) pyrazoline and 2,2′-(2,5-thiophenediyl) bis-(5-pheny1)-1,3,4-oxadiazole

被引：26
|
作者：
Zhang, ZM [1 ]
Li, GW [1 ]
Shen, YMJ [1 ]
机构：
[1] Jilin Univ, Key Lab Supramol Struct & Mat, Minist Educ, Changchun 130023, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2003年 / 82卷 / 03期
基金：
中国国家自然科学基金;
关键词：
2,2 '-(2,5-thiophenediyl) bis-(5-phenyl)-1,3,4-oxadiazole; photolummescence; electroluminescence; electroplex;
D O I：
10.1016/S0254-0584(03)00324-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The photoluminescence (PL) and electroluminescence (EL) properties of a novel organic compound, 2,2'-(2,5-thiophenediyl) bis-(5-phenyl)-1,3,4-oxadiazole (TOXD), were studied as electron transporting material. The PL emission maximum peak is at 408 nm of TOXD in chloroform and is at 472 nm in solid film, respectively. The EL emission maximum peaks of the bilayer ITO/PDP/TOXD/Al LED located between emission maximum peaks of TOXD (470 nm) and PDP (500 nm) at lower driving voltage, 4.5-5.4 V and shifted to 508 rim at 6.0 V and 518 nm at 7.0 V with increase of applied voltage. The new EL emission peak at 518 nm from the bilayer LED is ascribed to electroplex formation at the interface of TOXD and PDP film in bilayer LED under external electric field. The electroplex emission is close to the energy levels of PDP and TOXD. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：613 / 617
页数：5
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