Hole-injecting conducting-polymer compositions for highly efficient and stable organic light-emitting diodes

被引：71

作者：

Lee, TW ^{[1
]}

Kwon, O ^{[1
]}

Kim, MG ^{[1
]}

Park, SH ^{[1
]}

Chung, J ^{[1
]}

Kim, SY ^{[1
]}

Chung, Y ^{[1
]}

Park, JY ^{[1
]}

Han, E ^{[1
]}

Huh, DH ^{[1
]}

Park, JJ ^{[1
]}

Pu, L ^{[1
]}

机构：

[1] Samsung Adv Inst Technol, Yongin 449712, Gyeonggi Do, South Korea

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 23期

关键词：

D O I：

10.1063/1.2132072

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This letter introduces conducting polymer compositions which can be used for hole-injection layer in organic light-emitting diodes. The compositions are composed of poly (3,4-ethylenedioxythiophene) (PEDOT), polystyrene sulfonic acid (PSS) and a perfluorinated ionomer. The films based on these compositions showed much higher workfunction (similar to 5.3-5.7 eV) than conventional PEDOT/PSS (similar to 5.0-5.2 eV). When we fabricated blue polymer light-emitting diodes by using these compositions as a hole-injection layer, the luminescent efficiency was improved and the device lifetime was also enhanced relative to the device using the commercially available PEDOT/PSS. These compositions including perfluorinated ionomers can be one of the promising candidates for a hole-injection layer in organic light-emitting devices. (c) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

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