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

Zhong, GY, Xu, Z, He, J et al. (2002). Aggregation and permeation of 4-(dicyanomethylene)-2-methyl-6-(p- dimethylaminostyryl)-4H-pyran molecules in Alq . APPLIED PHYSICS LETTERS, 81(6), 1122-1124. 10.1063/1.1497438

cited authors

  • Zhong, GY; Xu, Z; He, J; Zhang, ST; Zhan, YQ; Wang, XJ; Xiong, ZH; Shi, HZ; Ding, XM; Huang, W; Hou, XY

authors

abstract

  • 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. © 2002 American Institute of Physics.

publication date

  • August 5, 2002

published in

Digital Object Identifier (DOI)

start page

  • 1122

end page

  • 1124

volume

  • 81

issue

  • 6