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Article: Exceptional oxygen sensing capabilities and triplet state properties of Ir(ppy-NPh2)3

TitleExceptional oxygen sensing capabilities and triplet state properties of Ir(ppy-NPh2)3
Authors
Issue Date2009
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm
Citation
Chemistry Of Materials, 2009, v. 21 n. 11, p. 2173-2175 How to Cite?
AbstractA study was conducted to investigate the triplet state properties of Ir(ppy-NPh2)3 in comparison to those of Ir(ppy) 3 and demonstrate their technological potential for oxygen sensing. The emission spectra of Ir(ppy-NPh2)3 and Ir(ppy) 3 were compared. The slightly more structured spectra and longer decay times for Ir(ppy-NPh2)3 indicated a smaller metal-to-ligand charge transfer (MLCT) character of the emitting triplet state of the substituted complex as compared with Ir(ppy)3. It was observed that the photoluminescence quantum efficiency φPL was significantly high finding applications in OLEDs and sensors. A solution of 5 wt % Ir(ppy-NPh 2)3 and 5 wt % ethyl cellulose (EC) in THF was used to prepare the oxygen sensor.
Persistent Identifierhttp://hdl.handle.net/10722/58439
ISSN
2014 Impact Factor: 8.354
2014 SCImago Journal Rankings: 3.274
ISI Accession Number ID
Funding AgencyGrant Number
BMBF
Germany/Hong Kong Joint Research Scheme
Research Grant Council (RGC) of Hong KongHKU 7008/07P
German Academic Exchange Service (DAAD)G_HK021/06
Strategic Research Theme
Funding Information:

This work was supported by the BMBF and by a grant from the Germany/Hong Kong Joint Research Scheme Sponsored by the Research Grant Council (RGC) of Hong Kong and the German Academic Exchange Service (DAAD) (Ref. G_HK021/06). Financial support from the RGC (Project HKU 7008/07P) and the Strategic Research Theme (U of HK) is also acknowledged.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorMak, CSKen_HK
dc.contributor.authorPenflehner, Den_HK
dc.contributor.authorStich, Men_HK
dc.contributor.authorWolfbeis, OSen_HK
dc.contributor.authorChan, WKen_HK
dc.contributor.authorYersin, Hen_HK
dc.date.accessioned2010-05-31T03:30:19Z-
dc.date.available2010-05-31T03:30:19Z-
dc.date.issued2009en_HK
dc.identifier.citationChemistry Of Materials, 2009, v. 21 n. 11, p. 2173-2175en_HK
dc.identifier.issn0897-4756en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58439-
dc.description.abstractA study was conducted to investigate the triplet state properties of Ir(ppy-NPh2)3 in comparison to those of Ir(ppy) 3 and demonstrate their technological potential for oxygen sensing. The emission spectra of Ir(ppy-NPh2)3 and Ir(ppy) 3 were compared. The slightly more structured spectra and longer decay times for Ir(ppy-NPh2)3 indicated a smaller metal-to-ligand charge transfer (MLCT) character of the emitting triplet state of the substituted complex as compared with Ir(ppy)3. It was observed that the photoluminescence quantum efficiency φPL was significantly high finding applications in OLEDs and sensors. A solution of 5 wt % Ir(ppy-NPh 2)3 and 5 wt % ethyl cellulose (EC) in THF was used to prepare the oxygen sensor.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cmen_HK
dc.relation.ispartofChemistry of Materialsen_HK
dc.titleExceptional oxygen sensing capabilities and triplet state properties of Ir(ppy-NPh2)3en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0897-4756&volume=21&spage=2173&epage=&date=2009&atitle=Exceptional+Oxygen+Sensing+Capabilities+and+Triplet+State+Properties+of+Ir(ppy-NPh2)3en_HK
dc.identifier.emailMak, CSK: cskm@hkucc.hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.authorityMak, CSK=rp00761en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/cm9003678en_HK
dc.identifier.scopuseid_2-s2.0-66849093497en_HK
dc.identifier.hkuros159833en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-66849093497&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume21en_HK
dc.identifier.issue11en_HK
dc.identifier.spage2173en_HK
dc.identifier.epage2175en_HK
dc.identifier.eissn1520-5002-
dc.identifier.isiWOS:000266708700002-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectSynthesis, spectroscopy and OLED application of triplet emitters containing charge transport moieties-
dc.identifier.scopusauthoridMak, CSK=8899597100en_HK
dc.identifier.scopusauthoridPenflehner, D=26645133000en_HK
dc.identifier.scopusauthoridStich, M=24330119700en_HK
dc.identifier.scopusauthoridWolfbeis, OS=7006885211en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.scopusauthoridYersin, H=7004236383en_HK

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