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Article: Synthesis and characterization of phenanthroimidazole derivatives for applications in organic electroluminescent devices

TitleSynthesis and characterization of phenanthroimidazole derivatives for applications in organic electroluminescent devices
Authors
Issue Date2011
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/Publishing/Journals/jm/index.asp
Citation
Journal Of Materials Chemistry, 2011, v. 21 n. 22, p. 8206-8214 How to Cite?
AbstractA series of phenanthroimidazole derivatives have been synthesized, characterized and applied as non-doped emitters in organic light-emitting devices. The compounds show high fluorescent quantum yields up to 0.75 as well as good thermal and film-forming abilities. Crystal structures of the compounds were determined by X-ray crystallography. Correlations between optoelectronic properties, energy levels and molecular structures of the materials were investigated. It was found that introduction of a thiophene ring on the C2-position of phenanthroimidazole can effectively decrease the ionization potentials (I p) of the compounds. Fluorescent properties of the materials were found to be related to the dihedral angles in the compounds with different substituents. The low I p (from 5.00 to 5.21 eV) of the materials enables efficient hole-injection from the hole-transporting layer and results in low turn-on (<2.7 V) and operation voltages (<5.5 V to give 1000 cd m -2). © 2011 The Royal Society of Chemistry.
Persistent Identifierhttp://hdl.handle.net/10722/168530
ISSN
2013 Impact Factor: 6.626
2015 SCImago Journal Rankings: 2.540
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Yen_US
dc.contributor.authorLai, SLen_US
dc.contributor.authorTong, QXen_US
dc.contributor.authorChan, MYen_US
dc.contributor.authorNg, TWen_US
dc.contributor.authorWen, ZCen_US
dc.contributor.authorZhang, GQen_US
dc.contributor.authorLee, STen_US
dc.contributor.authorKwong, HLen_US
dc.contributor.authorLee, CSen_US
dc.date.accessioned2012-10-08T03:20:08Z-
dc.date.available2012-10-08T03:20:08Z-
dc.date.issued2011en_US
dc.identifier.citationJournal Of Materials Chemistry, 2011, v. 21 n. 22, p. 8206-8214en_US
dc.identifier.issn0959-9428en_US
dc.identifier.urihttp://hdl.handle.net/10722/168530-
dc.description.abstractA series of phenanthroimidazole derivatives have been synthesized, characterized and applied as non-doped emitters in organic light-emitting devices. The compounds show high fluorescent quantum yields up to 0.75 as well as good thermal and film-forming abilities. Crystal structures of the compounds were determined by X-ray crystallography. Correlations between optoelectronic properties, energy levels and molecular structures of the materials were investigated. It was found that introduction of a thiophene ring on the C2-position of phenanthroimidazole can effectively decrease the ionization potentials (I p) of the compounds. Fluorescent properties of the materials were found to be related to the dihedral angles in the compounds with different substituents. The low I p (from 5.00 to 5.21 eV) of the materials enables efficient hole-injection from the hole-transporting layer and results in low turn-on (<2.7 V) and operation voltages (<5.5 V to give 1000 cd m -2). © 2011 The Royal Society of Chemistry.en_US
dc.languageengen_US
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/Publishing/Journals/jm/index.aspen_US
dc.relation.ispartofJournal of Materials Chemistryen_US
dc.titleSynthesis and characterization of phenanthroimidazole derivatives for applications in organic electroluminescent devicesen_US
dc.typeArticleen_US
dc.identifier.emailChan, MY:chanmym@hku.hken_US
dc.identifier.authorityChan, MY=rp00666en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1039/c1jm10326aen_US
dc.identifier.scopuseid_2-s2.0-79957472847en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79957472847&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume21en_US
dc.identifier.issue22en_US
dc.identifier.spage8206en_US
dc.identifier.epage8214en_US
dc.identifier.isiWOS:000290912900050-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridZhang, Y=39661408400en_US
dc.identifier.scopusauthoridLai, SL=7402937153en_US
dc.identifier.scopusauthoridTong, QX=17347054500en_US
dc.identifier.scopusauthoridChan, MY=7402597725en_US
dc.identifier.scopusauthoridNg, TW=24822626900en_US
dc.identifier.scopusauthoridWen, ZC=36629582300en_US
dc.identifier.scopusauthoridZhang, GQ=39661429400en_US
dc.identifier.scopusauthoridLee, ST=35468613000en_US
dc.identifier.scopusauthoridKwong, HL=35569416300en_US
dc.identifier.scopusauthoridLee, CS=35364273600en_US

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