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Article: Highly efficient and substrate independent CsF/Yb/Ag cathodes for organic light-emitting devices

TitleHighly efficient and substrate independent CsF/Yb/Ag cathodes for organic light-emitting devices
Authors
Issue Date2003
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/cplett
Citation
Chemical Physics Letters, 2003, v. 374 n. 3-4, p. 215-221 How to Cite?
AbstractThe application of a cathode system comprising of an ultrathin CsF layer and an overlaid ytterbium (Yb) metal in organic electroluminescent devices is reported. This cathode shows dramatically reduced operating voltage and improved current and power efficiencies, both in small molecule or polymer based devices. The improvement is attributed to the dissociation of CsF upon Yb deposition to liberate low-work function Cs which reduces the electron injection barrier at the cathode/organic interface. Thermodynamically, the CsF dissociation is a substrate-independent process, and should be applicable for most organic based devices. Devices with this bilayer cathode system also show good operational stability. © 2003 Elsevier Science B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/167793
ISSN
2015 Impact Factor: 1.86
2015 SCImago Journal Rankings: 0.757
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChan, MYen_US
dc.contributor.authorLai, SLen_US
dc.contributor.authorFung, MKen_US
dc.contributor.authorLee, CSen_US
dc.contributor.authorLee, STen_US
dc.date.accessioned2012-10-08T03:11:41Z-
dc.date.available2012-10-08T03:11:41Z-
dc.date.issued2003en_US
dc.identifier.citationChemical Physics Letters, 2003, v. 374 n. 3-4, p. 215-221en_US
dc.identifier.issn0009-2614en_US
dc.identifier.urihttp://hdl.handle.net/10722/167793-
dc.description.abstractThe application of a cathode system comprising of an ultrathin CsF layer and an overlaid ytterbium (Yb) metal in organic electroluminescent devices is reported. This cathode shows dramatically reduced operating voltage and improved current and power efficiencies, both in small molecule or polymer based devices. The improvement is attributed to the dissociation of CsF upon Yb deposition to liberate low-work function Cs which reduces the electron injection barrier at the cathode/organic interface. Thermodynamically, the CsF dissociation is a substrate-independent process, and should be applicable for most organic based devices. Devices with this bilayer cathode system also show good operational stability. © 2003 Elsevier Science B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/cpletten_US
dc.relation.ispartofChemical Physics Lettersen_US
dc.titleHighly efficient and substrate independent CsF/Yb/Ag cathodes for organic light-emitting devicesen_US
dc.typeArticleen_US
dc.identifier.emailChan, MY:chanmym@hku.hken_US
dc.identifier.authorityChan, MY=rp00666en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S0009-2614(03)00675-4en_US
dc.identifier.scopuseid_2-s2.0-0037769564en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037769564&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume374en_US
dc.identifier.issue3-4en_US
dc.identifier.spage215en_US
dc.identifier.epage221en_US
dc.identifier.isiWOS:000183518100003-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridChan, MY=7402597725en_US
dc.identifier.scopusauthoridLai, SL=7402937153en_US
dc.identifier.scopusauthoridFung, MK=7101955091en_US
dc.identifier.scopusauthoridLee, CS=35364273600en_US
dc.identifier.scopusauthoridLee, ST=7601398402en_US

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