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Article: Photophysical properties and OLED applications of phosphorescent platinum(II) schiff base complexes

TitlePhotophysical properties and OLED applications of phosphorescent platinum(II) schiff base complexes
Authors
KeywordsOrganic light-emitting diodes
Phosphorescence
Platinum
Schiff bases
Triplet state
Issue Date2010
PublisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/chemistry
Citation
Chemistry - A European Journal, 2010, v. 16 n. 1, p. 233-247 How to Cite?
AbstractThe syntheses, crystal structures, and detailed investigations of the photophysical properties of phosphorescent platinum(II) Schiff base complexes are presented. All of these complexes exhibit intense absorption bands with λmax in the range 417-546 nm, which are assigned to states of metalto-ligand charge-transfer (1MLCT) 1[Pt(5d) →π*(Schiff base)] character mixed with 1[lone pair(phenoxide)→ π*(imine)] charge-transfer character. The platinum(II) Schiff base complexes are thermally stable, with decomposition temperatures up to 495 °C, and show emission λmax at 541-649 nm in acetonitrile, with emission quantum yields up to 0.27. Measurements of the emission decay times in the tempera-ture range from 130 to 1.5 K give total zero-field splitting parameters of the emitting triplet state of 14-28 cm-1. High-performance yellow to red organic light-emitting devices (OLEDs) using these platinum(II) Schiff base complexes have been fabricated with the best efficiency up to 31 cd A -1 and a device lifetime up to 77000 h at 500 cd m-2. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.
Persistent Identifierhttp://hdl.handle.net/10722/70509
ISSN
2015 Impact Factor: 5.771
2015 SCImago Journal Rankings: 2.323
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong
Nano and Advanced Materials Institute Limited (NAMI)
Hong Kong Special Administrative Region, ChinaITS/016/08NP
National Natural Science Foundation of China/Rescarch Grants Council Joint Research SchemeN-HKU 752/08
Chinese Academy of Sciences-Croucher Foundation Funding Scheme For Joint Laboratories
Council of Hong KongHKU 7011/07P
HKU 7030/06P
German Ministry of Education and Research (BMBF)
German Academic Exchange Service (DAAD)
German/Hong Kong Joint Research SchemeG-HK 033/04
Funding Information:

We are grateful for the financial support from The University of Hong Kong, Nano and Advanced Materials Institute Limited (NAMI), the Innovation and Technology Commission of The Hong Kong Special Administrative Region, China (ITS/016/08NP), National Natural Science Foundation of China/Rescarch Grants Council Joint Research Scheme (N-HKU 752/08), the Chinese Academy of Sciences-Croucher Foundation Funding Scheme For Joint Laboratories. the Research Grants Council of Hong Kong (HKU 7011/07P, HKU 7030/06P), and the German Ministry of Education and Research (BMBF). The German Academic Exchange Service (DAAD) and the German/Hong Kong Joint Research Scheme (G-HK 033/04) are acknowledged for supporting cooperation between the Hong Kong and Regensburg institutes.

References
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DC FieldValueLanguage
dc.contributor.authorChe, CMen_HK
dc.contributor.authorKwok, CCen_HK
dc.contributor.authorLai, SWen_HK
dc.contributor.authorRausch, AFen_HK
dc.contributor.authorFinkenzeller, WJen_HK
dc.contributor.authorZhu, Nen_HK
dc.contributor.authorYersin, Hen_HK
dc.date.accessioned2010-09-06T06:23:33Z-
dc.date.available2010-09-06T06:23:33Z-
dc.date.issued2010en_HK
dc.identifier.citationChemistry - A European Journal, 2010, v. 16 n. 1, p. 233-247en_HK
dc.identifier.issn0947-6539en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70509-
dc.description.abstractThe syntheses, crystal structures, and detailed investigations of the photophysical properties of phosphorescent platinum(II) Schiff base complexes are presented. All of these complexes exhibit intense absorption bands with λmax in the range 417-546 nm, which are assigned to states of metalto-ligand charge-transfer (1MLCT) 1[Pt(5d) →π*(Schiff base)] character mixed with 1[lone pair(phenoxide)→ π*(imine)] charge-transfer character. The platinum(II) Schiff base complexes are thermally stable, with decomposition temperatures up to 495 °C, and show emission λmax at 541-649 nm in acetonitrile, with emission quantum yields up to 0.27. Measurements of the emission decay times in the tempera-ture range from 130 to 1.5 K give total zero-field splitting parameters of the emitting triplet state of 14-28 cm-1. High-performance yellow to red organic light-emitting devices (OLEDs) using these platinum(II) Schiff base complexes have been fabricated with the best efficiency up to 31 cd A -1 and a device lifetime up to 77000 h at 500 cd m-2. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.en_HK
dc.languageengen_HK
dc.publisherWiley - V C H Verlag GmbH & Co KGaA. The Journal's web site is located at http://www.wiley-vch.de/home/chemistryen_HK
dc.relation.ispartofChemistry - A European Journalen_HK
dc.subjectOrganic light-emitting diodesen_HK
dc.subjectPhosphorescenceen_HK
dc.subjectPlatinumen_HK
dc.subjectSchiff basesen_HK
dc.subjectTriplet stateen_HK
dc.titlePhotophysical properties and OLED applications of phosphorescent platinum(II) schiff base complexesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0947-6539&volume=16&issue=1&spage=233&epage=247&date=2010&atitle=Photophysical+properties+and+OLED+applications+of+phosphorescent+platinum(II)+Schiff+base+complexesen_HK
dc.identifier.emailChe, CM: cmche@hku.hken_HK
dc.identifier.emailKwok, CC: cckwok@hku.hken_HK
dc.identifier.emailLai, SW: swlai@hku.hken_HK
dc.identifier.emailZhu, N: nzhu@hkucc.hku.hken_HK
dc.identifier.authorityChe, CM=rp00670en_HK
dc.identifier.authorityKwok, CC=rp00847en_HK
dc.identifier.authorityLai, SW=rp00717en_HK
dc.identifier.authorityZhu, N=rp00845en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/chem.200902183en_HK
dc.identifier.pmid20013963-
dc.identifier.scopuseid_2-s2.0-73949134891en_HK
dc.identifier.hkuros169534en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-73949134891&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume16en_HK
dc.identifier.issue1en_HK
dc.identifier.spage233en_HK
dc.identifier.epage247en_HK
dc.identifier.isiWOS:000274007900028-
dc.publisher.placeGermanyen_HK
dc.relation.projectPhosphorescent supramolecular metal-organic receptors for chemical recognition and biomolecular binding applications-
dc.identifier.scopusauthoridChe, CM=7102442791en_HK
dc.identifier.scopusauthoridKwok, CC=7102029161en_HK
dc.identifier.scopusauthoridLai, SW=7402937200en_HK
dc.identifier.scopusauthoridRausch, AF=8586021000en_HK
dc.identifier.scopusauthoridFinkenzeller, WJ=6508003448en_HK
dc.identifier.scopusauthoridZhu, N=7201449530en_HK
dc.identifier.scopusauthoridYersin, H=7004236383en_HK

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