EFFECTS OF DOPING IN POLYMER LIGHT-EMITTING-DIODES

被引：95

作者：

ROMERO, DB ^{[1
]}

SCHAER, M ^{[1
]}

ZUPPIROLI, L ^{[1
]}

CESAR, B ^{[1
]}

FRANCOIS, B ^{[1
]}

机构：

[1] INST CHARLES SADRON, F-67083 STRASBOURG, FRANCE

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 12期

关键词：

D O I：

10.1063/1.115048

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We observed a dramatic improvement in the performance of polymer light-emitting diodes (LEDs) upon light doping of the organic layer. The LEDs betrayed symmetrical electrical and light-emission characteristics. Their turn-on voltage is lower and their external quantum and power conversion efficiencies are higher by nearly an order of magnitude when compared with devices that utilized a nominally undoped organic layer. We attributed these results to the modification of the tunneling barrier in metal-polymer-metal junctions due to the presence of an induced polarization electric field associated with the ionized dopant counterions and charged polymer chains. (C) 1995 American Institute of Physics.

引用

页码：1659 / 1661

页数：3

共 16 条

[1] LIGHT-INDUCED LUMINESCENCE QUENCHING IN PRECURSOR-ROUTE POLY(PARA-PHENYLENE VINYLENE) [J].