Efficient polymer light emitting diodes with metal fluoride/Al cathodes

Authors
Yang, XH Mo, YQ Yang, W Yu, G Cao, Y
Citation
Xh. Yang et al., Efficient polymer light emitting diodes with metal fluoride/Al cathodes, APPL PHYS L, 79(5), 2001, pp. 563-565
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
79
Issue
5
Year of publication
2001
Pages
563 - 565
Database
ISI
SICI code
0003-6951(20010730)79:5<563:EPLEDW>2.0.ZU;2-W
Abstract
We reported efficient polymer light emitting diodes with alkali and alkalin e earth metal fluoride Al cathodes. The quantum efficiencies of these devic es are more than two orders of magnitude higher than those in devices witho ut fluoride layer, comparable to the best data reported with similar electr oluminescent polymers. The mechanism of the metal fluoride/Al bilayer catho des was also discussed based on photovoltaic, ac impedance, and photolumine scence efficiency measurement. (C) 2001 American Institute of Physics.