POLYMER LIGHT-EMITTING-DIODES WITH SINGLE-LAYER AND DOUBLE-LAYER STRUCTURES USING POLY(2,3-DIPHENYLQUINOXALINE-5,8-DIYL)

被引：39

作者：

YAMAMOTO, T

INOUE, T

KANBARA, T

机构：

[1] Research Laboratory of Resources Utilization, Tokyo Institute of Technology, Midori-ku, Yokohama, 227

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1994年 / 33卷 / 2B期

关键词：

ELECTROLUMINESCENCE; PI-CONJUGATED POLYMER; POLY(2,3-DIPHENYLQUINOXALINE-5,8-DIYL); HOLE TRANSPORTING LAYER; EXCIPLEX;

D O I：

10.1143/JJAP.33.L250

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A light-emitting diode (LED) using poly(2,3-diphenylquinoxaline-5,8-diyl) (PdPhQx) as the light-emitting material, ITO/PdPhQx/MgAg, emits blue-green (490 nm) light. Introduction of hole transporting layers such as vacuum-deposited or spin-coated thin layers of poly(thiophene-2,5-diyl), poly(p-phenylene), and poly(N-vinylcarbazole) between ITO and PdPhQx in the LED enhances electroluminescence efficiency by about two orders of magnitude. Addition of a diaryldiamine (TPD) in the PdPhQx layer causes a red shift of the emitted light to 565 nm due to formation of an exciplex between PdPhQx and TPD.

引用

收藏

页码：L250 / L253

页数：4

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