Highly efficient pure blue electroluminescence from polyfluorene: Influence of the molecular weight distribution on the aggregation tendency

被引：272

作者：

Weinfurtner, KH ^{[1
]}

Fujikawa, H ^{[1
]}

Tokito, S ^{[1
]}

Taga, Y ^{[1
]}

机构：

[1] Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan

来源：

APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 18期

关键词：

D O I：

10.1063/1.126389

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A dependency between the molecular weight distribution of polyfluorene (PFO) and its aggregation tendency on operation in organic light-emitting devices (OLED) is described. As a result of these findings, low molecular parts of the polymer could be made responsible for the aggregation in liquid crystalline PFO. Consequently, a procedure was developed which leads to PFO-based OLEDs which do not show aggregation on operation anymore but exhibit highly efficient and stable blue electroluminescence. (C) 2000 American Institute of Physics. [S0003-6951(00)02518-3].

引用

页码：2502 / 2504

页数：3

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