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Conference Paper: Optimization of organic light emitting diode structures

TitleOptimization of organic light emitting diode structures
Authors
KeywordsDevice design
Organic light emitting diodes
Issue Date2004
PublisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml
Citation
Proceedings Of Spie - The International Society For Optical Engineering, 2004, v. 5277, p. 311-319 How to Cite?
AbstractIn this work we present detailed analysis of the emitted radiation spectrum from tris(8-hydroxyquinoline) aluminum (Alq3) based OLEDs as a function of: the choice of cathode, the thickness of organic layers, and the position of the hole transport Iayer/Alq3 interface. The calculations fully take into account dispersion in glass substrate, indium tin oxide anode, and in the organic layers, as well as the dispersion in the metal cathode. Influence of the incoherent transparent substrate (1 mm glass substrate) is also fully accounted for. Four cathode structures have been considered: Mg/Ag, Ca/Ag, LiF/Al, and Ag. For the hole transport layer, N,N′-diphenyl-N, N′-(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD) was considered. As expected, emitted radiation is strongly dependent on the position of the emissive layer inside the cavity and its distance from the metal cathode. Although our optical model for an OLED does not explicitly include exciton quenching in vicinity of the metal cathode, designs placing emissive layer near the cathode are excluded to avoid unrealistic results. Guidelines for designing devices with optimum emission efficiency are presented. Finally, the optimized devices were fabricated and characterized and experimental and calculated emission spectra were compared.
Persistent Identifierhttp://hdl.handle.net/10722/45702
ISSN
2013 SCImago Journal Rankings: 0.203
References

 

DC FieldValueLanguage
dc.contributor.authorChan, Jen_HK
dc.contributor.authorRakić, ADen_HK
dc.contributor.authorKwong, CYen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorMajewski, MLen_HK
dc.contributor.authorChan, WKen_HK
dc.contributor.authorChui, PCen_HK
dc.date.accessioned2007-10-30T06:33:05Z-
dc.date.available2007-10-30T06:33:05Z-
dc.date.issued2004en_HK
dc.identifier.citationProceedings Of Spie - The International Society For Optical Engineering, 2004, v. 5277, p. 311-319en_HK
dc.identifier.issn0277-786Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/45702-
dc.description.abstractIn this work we present detailed analysis of the emitted radiation spectrum from tris(8-hydroxyquinoline) aluminum (Alq3) based OLEDs as a function of: the choice of cathode, the thickness of organic layers, and the position of the hole transport Iayer/Alq3 interface. The calculations fully take into account dispersion in glass substrate, indium tin oxide anode, and in the organic layers, as well as the dispersion in the metal cathode. Influence of the incoherent transparent substrate (1 mm glass substrate) is also fully accounted for. Four cathode structures have been considered: Mg/Ag, Ca/Ag, LiF/Al, and Ag. For the hole transport layer, N,N′-diphenyl-N, N′-(3-methylphenyl)-1,1′-biphenyl-4,4′-diamine (TPD) was considered. As expected, emitted radiation is strongly dependent on the position of the emissive layer inside the cavity and its distance from the metal cathode. Although our optical model for an OLED does not explicitly include exciton quenching in vicinity of the metal cathode, designs placing emissive layer near the cathode are excluded to avoid unrealistic results. Guidelines for designing devices with optimum emission efficiency are presented. Finally, the optimized devices were fabricated and characterized and experimental and calculated emission spectra were compared.en_HK
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dc.languageengen_HK
dc.publisherS P I E - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xmlen_HK
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_HK
dc.rightsS P I E - the International Society for Optical Proceedings. Copyright © S P I E - International Society for Optical Engineering.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsCopyright 2004 Society of Photo-Optical Instrumentation Engineers. This paper was published in Photonics : design, technology, and packaging, Perth, Australia, 10-12 December 2003, v. 5277, p. 311-319 and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.en_HK
dc.subjectDevice designen_HK
dc.subjectOrganic light emitting diodesen_HK
dc.titleOptimization of organic light emitting diode structuresen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0277-786X&volume=5277&spage=311&epage=319&date=2004&atitle=Optimization+of+organic+light+emitting+diode+structuresen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.emailChui, PC: pcchui@hkucc.hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.identifier.authorityChui, PC=rp00114en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1117/12.522861en_HK
dc.identifier.scopuseid_2-s2.0-2442580951en_HK
dc.identifier.hkuros90360-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-2442580951&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume5277en_HK
dc.identifier.spage311en_HK
dc.identifier.epage319en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChan, J=9234340000en_HK
dc.identifier.scopusauthoridRakić, AD=35618124100en_HK
dc.identifier.scopusauthoridKwong, CY=35917741900en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridMajewski, ML=7103350030en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.scopusauthoridChui, PC=13309913400en_HK

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