Aggregation and permeation of 4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran molecules in Alq

被引：34

作者：

Zhong, GY ^{[1
]}

Xu, Z

He, J

Zhang, ST

Zhan, YQ

Wang, XJ

Xiong, ZH

Shi, HZ

Ding, XM

Huang, W

Hou, XY

机构：

[1] Fudan Univ, Surface Phys Lab Natl Key Lab, Shanghai 200433, Peoples R China

[2] Fudan Univ, Inst Adv Mat & Technol & Dept Macromol Sci, Shanghai 200433, Peoples R China

[3] Fudan Univ, Inst Adv Mat & Technol, Shanghai 200433, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 06期

关键词：

D O I：

10.1063/1.1497438

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The morphologic and luminescent behaviors of various 4-(dicyanomethylene)-2methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) containing films have been investigated. This involves pure DCM layers deposited on top of a tris-(8-hydroxyquinoline) aluminum (Alq) layer or positioned between two Alq layer, DCM-doped Alq films, and periodically arranged Alq/DCM multilayer structures. The occurrence over a period of time of aggregation and permeation of DCM molecules at room temperature and at temperatures as low as similar to260 K is found in all the cases studied. Such a phenomenon will result in degradation of related organic light-emitting devices and is closely related to the electric polarity of the DCM molecule. (C) 2002 American Institute of Physics.

引用

页码：1122 / 1124

页数：3

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