Article: Asymmetric Bragg mirrors for the reduction of emission wavelength dependence on the viewing angle in organic microcavity light emitting diodes

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TitleAsymmetric Bragg mirrors for the reduction of emission wavelength dependence on the viewing angle in organic microcavity light emitting diodes
AuthorsDjurišić, AB2
Rakić, AD1
KeywordsBragg reflectors
Microcavity light emitting diodes
Issue Date2004
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/optcom
CitationOptics Communications, 2004, v. 236 n. 4-6, p. 303-311 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.optcom.2004.03.038
AbstractOrganic microcavity light emitting diodes typically exhibit a blue shift of the emitting wavelength with increasing viewing angle. While the wavelength shift can be reduced with the appropriate choice of organic materials and metal mirrors, for further reduction of the emission wavelength shift it is necessary to consider a mirror whose phase shift can partly compensate the effect of the change of optical path within the cavity. In this work, we used a genetic algorithm (GA) to design an asymmetric Bragg mirror in order to minimize the emission wavelength shift with viewing angle. Based on simulation results, the use of asymmetric Bragg mirrors represents a promising way to reduce the emission wavelength shift. Detailed comparison between GA optimized and conventional Bragg mirrors in terms of resonant wavelength dependence on the viewing angle, spectral narrowing, and brightness enhancement is given. © 2004 Elsevier B.V. All rights reserved.
ISSN0030-4018
2011 Impact Factor: 1.486
2011 SCImago Journal Rankings: 0.881
DOIhttp://dx.doi.org/10.1016/j.optcom.2004.03.038
ISI Accession Number IDWOS:000221921100009
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorDjurišić, AB
dc.contributor.authorRakić, AD
dc.date.accessioned2010-09-06T08:06:16Z
dc.date.available2010-09-06T08:06:16Z
dc.date.issued2004
dc.description.abstractOrganic microcavity light emitting diodes typically exhibit a blue shift of the emitting wavelength with increasing viewing angle. While the wavelength shift can be reduced with the appropriate choice of organic materials and metal mirrors, for further reduction of the emission wavelength shift it is necessary to consider a mirror whose phase shift can partly compensate the effect of the change of optical path within the cavity. In this work, we used a genetic algorithm (GA) to design an asymmetric Bragg mirror in order to minimize the emission wavelength shift with viewing angle. Based on simulation results, the use of asymmetric Bragg mirrors represents a promising way to reduce the emission wavelength shift. Detailed comparison between GA optimized and conventional Bragg mirrors in terms of resonant wavelength dependence on the viewing angle, spectral narrowing, and brightness enhancement is given. © 2004 Elsevier B.V. All rights reserved.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationOptics Communications, 2004, v. 236 n. 4-6, p. 303-311 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.optcom.2004.03.038
dc.identifier.doihttp://dx.doi.org/10.1016/j.optcom.2004.03.038
dc.identifier.epage311
dc.identifier.hkuros88825
dc.identifier.isiWOS:000221921100009
dc.identifier.issn0030-4018
2011 Impact Factor: 1.486
2011 SCImago Journal Rankings: 0.881
dc.identifier.issue4-6
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-2542477069
dc.identifier.spage303
dc.identifier.urihttp://hdl.handle.net/10722/80421
dc.identifier.volume236
dc.languageeng
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/optcom
dc.publisher.placeNetherlands
dc.relation.ispartofOptics Communications
dc.relation.referencesReferences in Scopus
dc.rightsOptics Communications. Copyright © Elsevier BV.
dc.subjectBragg reflectors
dc.subjectMicrocavity light emitting diodes
dc.titleAsymmetric Bragg mirrors for the reduction of emission wavelength dependence on the viewing angle in organic microcavity light emitting diodes
dc.typeArticle
Author Affiliations
  1. University of Queensland
  2. The University of Hong Kong