TITLE

Efficient polymer light emitting diodes with metal fluoride/Al cathodes

AUTHOR(S)
Yang, Xiaohui; Mo, Yueqi; Yang, Wei; Yu, Gang; Cao, Yong
PUB. DATE
July 2001
SOURCE
Applied Physics Letters;7/30/2001, Vol. 79 Issue 5
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We reported efficient polymer light emitting diodes with alkali and alkaline earth metal fluoride Al cathodes. The quantum efficiencies of these devices are more than two orders of magnitude higher than those in devices without fluoride layer, comparable to the best data reported with similar electroluminescent polymers. The mechanism of the metal fluoride/Al bilayer cathodes was also discussed based on photovoltaic, ac impedance, and photoluminescence efficiency measurement. © 2001 American Institute of Physics.
ACCESSION #
4864298

 

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