Organic light-emitting devices based on novel blends

被引：13

作者：

Cimrová, V ^{[1
]}

Vyprachticky, D ^{[1
]}

Pecka, J ^{[1
]}

Kotva, R ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Macromol Chem, Prague 16206 6, Czech Republic

来源：

ORGANIC PHOTONIC MATERIALS AND DEVICES II | 2000年 / 3939卷

关键词：

electroluminescence; polymer LEDs; substituted poly(p-phenylene)s; polysilanes; polymer blends;

D O I：

10.1117/12.386371

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Photoluminescence (PL), electroluminescence (EL) and degradation of a soluble electroluminescent poly(p-phenylene), poly[2,5-bis(isopentyloxy)-1,4-phenylene] (SPPP), and its blends with hole transport polymers based on poly[methyl(phenyl)silandiyl] (PMPSi) were studied. Efficient blue light-emitting devices (LEDs) with an air-stable (Al) electrode based on polymer blends composed of SPPP and PMPSi have been fabricated. In contrast to LEDs made of neat SPPP, an increase in external EL efficiency (up to 30 times) and improvement of the stability of blue emission were achieved in these LEDs. This enhancement is far above the increase in the PL efficiency of the blend layers. New alternately substituted poly(p-phenylene)s with high photoluminescent efficiency and new polymers with pi-conjugated (pyrene, biphenyl) or electron-transporting (oxadiazole) moieties attached to the polysilane backbone were synthesized.

引用

页码：164 / 171

页数：8

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