File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: The electroluminescent decay mechanism of rare-earth ions in OLEDs based on a terbium complex

TitleThe electroluminescent decay mechanism of rare-earth ions in OLEDs based on a terbium complex
Authors
KeywordsElectroluminescent (EL) decay mechanism
Energy transfer
Exciton quenching
Rare-earth (RE) organic light-emitting diodes (OLEDs)
Issue Date2007
PublisherIEEE.
Citation
Ieee Photonics Technology Letters, 2007, v. 19 n. 15, p. 1178-1180 How to Cite?
AbstractThe organic light-emitting diodes (OLEDs) based on terbium (Tb) complexes show sharp green emission spectrum with excellent color purity. However, the brightness of Tb-OLEDs is generally weak. Here, the electroluminescent (EL) decay mechanism of TB-OLEDs is studied by arbitrarily using tris-(1-phenyl-3-methyl-4-isobutyryl-5-pyrozolone)-bis(triphenyl phosphine oxide) terbium as the emitting layer. The device shows high EL efficiency at low current density but rapid reduction of device efficiency at higher current density. The transient EL is investigated for understanding the decay process of excited Tb 3+ ions. Together with theoretical studies, exciton quenching is proposed to explain the decay of the Tb-OLEDs which is important for optimizing and engineering the material and device structures. The EL from the mixed layer of the Tb and europium (Eu) complexes is also studied. We find that the EL performance and transient decay of the excited Tb ions are modified by energy transfer from Tb to Eu in the OLEDs. © 2007 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/57430
ISSN
2015 Impact Factor: 1.945
2015 SCImago Journal Rankings: 1.433
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLiang, CJen_HK
dc.contributor.authorChoy, WCHen_HK
dc.contributor.authorHuang, Cen_HK
dc.date.accessioned2010-04-12T01:36:40Z-
dc.date.available2010-04-12T01:36:40Z-
dc.date.issued2007en_HK
dc.identifier.citationIeee Photonics Technology Letters, 2007, v. 19 n. 15, p. 1178-1180en_HK
dc.identifier.issn1041-1135en_HK
dc.identifier.urihttp://hdl.handle.net/10722/57430-
dc.description.abstractThe organic light-emitting diodes (OLEDs) based on terbium (Tb) complexes show sharp green emission spectrum with excellent color purity. However, the brightness of Tb-OLEDs is generally weak. Here, the electroluminescent (EL) decay mechanism of TB-OLEDs is studied by arbitrarily using tris-(1-phenyl-3-methyl-4-isobutyryl-5-pyrozolone)-bis(triphenyl phosphine oxide) terbium as the emitting layer. The device shows high EL efficiency at low current density but rapid reduction of device efficiency at higher current density. The transient EL is investigated for understanding the decay process of excited Tb 3+ ions. Together with theoretical studies, exciton quenching is proposed to explain the decay of the Tb-OLEDs which is important for optimizing and engineering the material and device structures. The EL from the mixed layer of the Tb and europium (Eu) complexes is also studied. We find that the EL performance and transient decay of the excited Tb ions are modified by energy transfer from Tb to Eu in the OLEDs. © 2007 IEEE.en_HK
dc.languageengen_HK
dc.publisherIEEE.en_HK
dc.relation.ispartofIEEE Photonics Technology Lettersen_HK
dc.rights©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectElectroluminescent (EL) decay mechanismen_HK
dc.subjectEnergy transferen_HK
dc.subjectExciton quenchingen_HK
dc.subjectRare-earth (RE) organic light-emitting diodes (OLEDs)en_HK
dc.titleThe electroluminescent decay mechanism of rare-earth ions in OLEDs based on a terbium complexen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1041-1135&volume=19&issue=15&spage=1178&epage=1180&date=2007&atitle=The+electroluminescent+decay+mechanism+of+rare-earth+ions+in+OLEDs+based+on+a+terbium+complexen_HK
dc.identifier.emailChoy, WCH:chchoy@eee.hku.hken_HK
dc.identifier.authorityChoy, WCH=rp00218en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/LPT.2007.901599en_HK
dc.identifier.scopuseid_2-s2.0-34547137905en_HK
dc.identifier.hkuros131023-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34547137905&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue15en_HK
dc.identifier.spage1178en_HK
dc.identifier.epage1180en_HK
dc.identifier.isiWOS:000248671600074-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLiang, CJ=54786617200en_HK
dc.identifier.scopusauthoridChoy, WCH=7006202371en_HK
dc.identifier.scopusauthoridHuang, C=36065677300en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats