Conference Paper: Influence of layer thickness to the emission spectra in microcavity organic light emitting diodes

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TitleInfluence of layer thickness to the emission spectra in microcavity organic light emitting diodes
AuthorsKwong, CY2
Djurišić, AB2
Cheung, CH2
Chan, J1
Rakić, AD1
Tam, HL3
Cheah, KW3
Liu, ZT2
Chan, WK2
Chui, PC2
KeywordsMicrocavity
OLED
Issue Date2005
CitationConference On Optoelectronic And Microelectronic Materials And Devices, Proceedings, Commad, 2005, p. 347-350 [How to Cite?]
DOI: http://dx.doi.org/10.1109/COMMAD.2004.1577562
AbstractMicrocavity organic light emitting diodes (OLEDs) have attracted great attention because they can reduce the width of emission spectra from organic materials, enhance brightness and achieve multipeak emission from the same material. In this work, we have fabricated microcavity OLEDs with widely used organic materials, such as N,N′-di(naphthalene-1-yl)-N,N′- diphenylbenzidine (NPB) as a hole transport layer and tris (8-hydroxyquinoline) (Alq) as emitting and electron transporting layer. These organic materials are sandwiched either between two thick silver mirrors or one thin copper and one thick silver mirrors. The influence of total cavity length (from 164 nm to 243nm) and the cavity Q-factor to the emission behavior has been investigated. In all cases, an OLED without bottom mirror, i.e. with the organic materials sandwiched between indium tin oxide and a thick silver mirror, has been fabricated for comparison. We have characterized the devices with photoluminescence, electroluminescence, and reflectance measurements. Multiple peaks have been observed for some devices at larger viewing angles. © 2005 IEEE.
DOIhttp://dx.doi.org/10.1109/COMMAD.2004.1577562
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorKwong, CY
dc.contributor.authorDjurišić, AB
dc.contributor.authorCheung, CH
dc.contributor.authorChan, J
dc.contributor.authorRakić, AD
dc.contributor.authorTam, HL
dc.contributor.authorCheah, KW
dc.contributor.authorLiu, ZT
dc.contributor.authorChan, WK
dc.contributor.authorChui, PC
dc.date.accessioned2012-08-08T09:00:05Z
dc.date.available2012-08-08T09:00:05Z
dc.date.issued2005
dc.description.abstractMicrocavity organic light emitting diodes (OLEDs) have attracted great attention because they can reduce the width of emission spectra from organic materials, enhance brightness and achieve multipeak emission from the same material. In this work, we have fabricated microcavity OLEDs with widely used organic materials, such as N,N′-di(naphthalene-1-yl)-N,N′- diphenylbenzidine (NPB) as a hole transport layer and tris (8-hydroxyquinoline) (Alq) as emitting and electron transporting layer. These organic materials are sandwiched either between two thick silver mirrors or one thin copper and one thick silver mirrors. The influence of total cavity length (from 164 nm to 243nm) and the cavity Q-factor to the emission behavior has been investigated. In all cases, an OLED without bottom mirror, i.e. with the organic materials sandwiched between indium tin oxide and a thick silver mirror, has been fabricated for comparison. We have characterized the devices with photoluminescence, electroluminescence, and reflectance measurements. Multiple peaks have been observed for some devices at larger viewing angles. © 2005 IEEE.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationConference On Optoelectronic And Microelectronic Materials And Devices, Proceedings, Commad, 2005, p. 347-350 [How to Cite?]
DOI: http://dx.doi.org/10.1109/COMMAD.2004.1577562
dc.identifier.doihttp://dx.doi.org/10.1109/COMMAD.2004.1577562
dc.identifier.epage350
dc.identifier.scopuseid_2-s2.0-46149114367
dc.identifier.spage347
dc.identifier.urihttp://hdl.handle.net/10722/158525
dc.languageeng
dc.relation.ispartofConference on Optoelectronic and Microelectronic Materials and Devices, Proceedings, COMMAD
dc.relation.referencesReferences in Scopus
dc.subjectMicrocavity
dc.subjectOLED
dc.titleInfluence of layer thickness to the emission spectra in microcavity organic light emitting diodes
dc.typeConference_Paper
Author Affiliations
  1. University of Queensland
  2. The University of Hong Kong
  3. Hong Kong Baptist University