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Article: Anode modification of polyfluorene-based polymer light-emitting devices

TitleAnode modification of polyfluorene-based polymer light-emitting devices
Authors
Issue Date2002
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2002, v. 81 n. 8, p. 1497-1499 How to Cite?
AbstractA glycerol-modified poly(3,4-ethylene dioxythiophene) (PEDOT): poly(styrene sulfonate) (PSS) layer was used as an anode buffer layer in polymer light-emitting devices using poly(9,9-dioctylfluorene) (F8) as the emitter. Devices with a configuration of indium tin oxide/PEDOT:PSS (with or without glycerol)/F8/CsF/Al were fabricated. It was found that the glycerol-modified device showed a much larger current density than the unmodified device. At an operating voltage of 6 V, the glycerol-modified device showed a luminance of 1300Cd/m 2 and a current efficiency of 1.7 Cd/A compared to the corresponding values of 500Cd/m 2 and 1.3 Cd/A in the unmodified device. Analysis by ultraviolet spectroscopy suggests that the two devices have the same energy level structure and the performance improvement should not be due to change in the PEDOT/polymer interface. It was further found that incorporating a suitable amount of glycerol into the PEDOT:PSS layer can increase its conductivity by six times. This leads to a better balance in the hole and electron currents and thus improved device efficiency. © 2002 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/168528
ISSN
2015 Impact Factor: 3.142
2015 SCImago Journal Rankings: 1.105
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFung, MKen_US
dc.contributor.authorLai, SLen_US
dc.contributor.authorTong, SWen_US
dc.contributor.authorChan, MYen_US
dc.contributor.authorLee, CSen_US
dc.contributor.authorLee, STen_US
dc.contributor.authorWu, WWen_US
dc.contributor.authorInbasekaran, Men_US
dc.contributor.authorO'brien, JJen_US
dc.date.accessioned2012-10-08T03:20:06Z-
dc.date.available2012-10-08T03:20:06Z-
dc.date.issued2002en_US
dc.identifier.citationApplied Physics Letters, 2002, v. 81 n. 8, p. 1497-1499en_US
dc.identifier.issn0003-6951en_US
dc.identifier.urihttp://hdl.handle.net/10722/168528-
dc.description.abstractA glycerol-modified poly(3,4-ethylene dioxythiophene) (PEDOT): poly(styrene sulfonate) (PSS) layer was used as an anode buffer layer in polymer light-emitting devices using poly(9,9-dioctylfluorene) (F8) as the emitter. Devices with a configuration of indium tin oxide/PEDOT:PSS (with or without glycerol)/F8/CsF/Al were fabricated. It was found that the glycerol-modified device showed a much larger current density than the unmodified device. At an operating voltage of 6 V, the glycerol-modified device showed a luminance of 1300Cd/m 2 and a current efficiency of 1.7 Cd/A compared to the corresponding values of 500Cd/m 2 and 1.3 Cd/A in the unmodified device. Analysis by ultraviolet spectroscopy suggests that the two devices have the same energy level structure and the performance improvement should not be due to change in the PEDOT/polymer interface. It was further found that incorporating a suitable amount of glycerol into the PEDOT:PSS layer can increase its conductivity by six times. This leads to a better balance in the hole and electron currents and thus improved device efficiency. © 2002 American Institute of Physics.en_US
dc.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/en_US
dc.relation.ispartofApplied Physics Lettersen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleAnode modification of polyfluorene-based polymer light-emitting devicesen_US
dc.typeArticleen_US
dc.identifier.emailChan, MY:chanmym@hku.hken_US
dc.identifier.authorityChan, MY=rp00666en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1063/1.1499519en_US
dc.identifier.scopuseid_2-s2.0-79955987751en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955987751&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume81en_US
dc.identifier.issue8en_US
dc.identifier.spage1497en_US
dc.identifier.epage1499en_US
dc.identifier.isiWOS:000177351600044-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridFung, MK=7101955091en_US
dc.identifier.scopusauthoridLai, SL=7402937153en_US
dc.identifier.scopusauthoridTong, SW=36891091800en_US
dc.identifier.scopusauthoridChan, MY=7402597725en_US
dc.identifier.scopusauthoridLee, CS=7410156773en_US
dc.identifier.scopusauthoridLee, ST=47661251100en_US
dc.identifier.scopusauthoridWu, WW=54780900000en_US
dc.identifier.scopusauthoridInbasekaran, M=8455253800en_US
dc.identifier.scopusauthoridO'Brien, JJ=7403407209en_US

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