Low voltage organic light emitting diodes featuring doped phthalocyanine as hole transport material

被引：461

作者：

Blochwitz, J ^{[1
]}

Pfeiffer, M ^{[1
]}

Fritz, T ^{[1
]}

Leo, K ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Angew Photophys, D-01062 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 06期

关键词：

D O I：

10.1063/1.121982

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We show that doping of the transport layers can strikingly improve the properties of organic light emitting diodes (OLEDs). The electroluminescence onset voltage of diodes containing an vanadyl-phthalocyanine (VOPc) hole transport layer intentionally doped with tetrafluorotetracyano-quinodimethan (F-4-TCNQ) is reduced by up to an order of magnitude compared to OLED with undoped VOPc. The improved properties of our devices can be explained by the improved conductivity and better injection for a doped transport layer. (C) 1998 American Institute of Physics.

引用

页码：729 / 731

页数：3

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