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 ∼260K 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.
源语言 | 英语 |
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页(从-至) | 1122-1124 |
页数 | 3 |
期刊 | Applied Physics Letters |
卷 | 81 |
期 | 6 |
DOI | |
出版状态 | 已出版 - 5 8月 2002 |
已对外发布 | 是 |