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Conference Paper: Optimization of microcavity OLED by varying the thickness of multi-layered mirror

TitleOptimization of microcavity OLED by varying the thickness of multi-layered mirror
Authors
KeywordsMicrocavity OLEDs
Optimization
Issue Date2006
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0306-8919
Citation
Optical And Quantum Electronics, 2006, v. 38 n. 12-14, p. 1091-1099 How to Cite?
Abstract
We optimized the emission efficiency from a microcavity OLEDs consisting of widely used organic materials, N,N′-di(naphthalene-1-yl)-N,N′- diphenylbenzidine (NPB) as a hole transport layer and tris (8-hydroxyquinoline) (Alq 3) as emitting and electron transporting layer. LiF/Al was used as a cathode, while metallic Ag was used as an anode material. A LiF/NPB bi-layer or NPB layer on top of the cathode was considered to alter the optical properties of the top mirror. The electroluminescence emission spectra, electric field distribution inside the device, carrier density, recombination rate and exciton density were calculated as a function of the position of the emission layer. The results show that for optimal capping layers thicknesses, light output is enhanced as a result of the increase in both the reflectance and transmittance of the top mirror. Once the optimum structure has been determined, the microcavity OLED devices were fabricated and characterized. The experimental results have been compared to the simulations and the influence of the thickness of the mirror layers, emission region width and position on the performance of microcavity OLEDs was discussed. © Springer Science+Business Media B.V. 2007.
Persistent Identifierhttp://hdl.handle.net/10722/80788
ISSN
2013 Impact Factor: 1.078
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLu, AWen_HK
dc.contributor.authorChan, Jen_HK
dc.contributor.authorRakić, ADen_HK
dc.contributor.authorNg, AMCen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.date.accessioned2010-09-06T08:10:16Z-
dc.date.available2010-09-06T08:10:16Z-
dc.date.issued2006en_HK
dc.identifier.citationOptical And Quantum Electronics, 2006, v. 38 n. 12-14, p. 1091-1099en_HK
dc.identifier.issn0306-8919en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80788-
dc.description.abstractWe optimized the emission efficiency from a microcavity OLEDs consisting of widely used organic materials, N,N′-di(naphthalene-1-yl)-N,N′- diphenylbenzidine (NPB) as a hole transport layer and tris (8-hydroxyquinoline) (Alq 3) as emitting and electron transporting layer. LiF/Al was used as a cathode, while metallic Ag was used as an anode material. A LiF/NPB bi-layer or NPB layer on top of the cathode was considered to alter the optical properties of the top mirror. The electroluminescence emission spectra, electric field distribution inside the device, carrier density, recombination rate and exciton density were calculated as a function of the position of the emission layer. The results show that for optimal capping layers thicknesses, light output is enhanced as a result of the increase in both the reflectance and transmittance of the top mirror. Once the optimum structure has been determined, the microcavity OLED devices were fabricated and characterized. The experimental results have been compared to the simulations and the influence of the thickness of the mirror layers, emission region width and position on the performance of microcavity OLEDs was discussed. © Springer Science+Business Media B.V. 2007.en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0306-8919en_HK
dc.relation.ispartofOptical and Quantum Electronicsen_HK
dc.subjectMicrocavity OLEDsen_HK
dc.subjectOptimizationen_HK
dc.titleOptimization of microcavity OLED by varying the thickness of multi-layered mirroren_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0306-8919&volume=38&spage=1091&epage=1099&date=2006&atitle=Optimization+of+microcavity+OLED+by+varying+the+thickness+of+multi-layered+mirroren_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s11082-006-9057-1en_HK
dc.identifier.scopuseid_2-s2.0-33947234573en_HK
dc.identifier.hkuros126612en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33947234573&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume38en_HK
dc.identifier.issue12-14en_HK
dc.identifier.spage1091en_HK
dc.identifier.epage1099en_HK
dc.identifier.isiWOS:000244953900018-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLu, AW=15035693100en_HK
dc.identifier.scopusauthoridChan, J=9234340000en_HK
dc.identifier.scopusauthoridRakić, AD=35618124100en_HK
dc.identifier.scopusauthoridNg, AMC=12140078600en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.citeulike1228873-

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