Optical determination of chain orientation in electroluminescent polymer films
作者:
D. McBranch,
I. H. Campbell,
D. L. Smith,
J. P. Ferraris,
期刊:
Applied Physics Letters
(AIP Available online 1995)
卷期:
Volume 66,
issue 10
页码: 1175-1177
ISSN:0003-6951
年代: 1995
DOI:10.1063/1.113848
出版商: AIP
数据来源: AIP
摘要:
We report polarized optical transmission and reflection measurements which are used to determine the orientation of polymer chains in spin‐cast thin films of soluble, electroluminescent polymers. We find that the polymer chains lie primarily in the plane of the film. This result has three important implications for polymer light emitting diodes: the electroluminescence is preferentially emitted propagating perpendicular to the polymer film; the relevant dielectric and electrical transport properties are those perpendicular to the polymer chains; and large area, uniform devices can be produced by spin casting. ©1995 American Institute of Physics.
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