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Article: Hybrid light-emitting devices based on phosphorescent platinum(II) complex sensitized CdSe/ZnS quantum dots
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TitleHybrid light-emitting devices based on phosphorescent platinum(II) complex sensitized CdSe/ZnS quantum dots
 
AuthorsCheng, G1
Lu, W1
Chen, Y1
Che, CM1
 
KeywordsCdSe/ZnS quantum dots
CIE coordinates
Emission lifetime
External quantum efficiency
Iridium complex
 
Issue Date2012
 
PublisherOptical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3
 
CitationOptics Letters, 2012, v. 37 n. 6, p. 1109-1111 [How to Cite?]
DOI: http://dx.doi.org/10.1364/OL.37.001109
 
AbstractWe report on hybrid light-emitting devices based on the emission of phosphorescent sensitized colloidal CdSe/ZnS quantum dots (QDs). Emission lifetime measurements demonstrated that the energy transfer (ET) from square-planar platinum(II) complex [4-CF 3-(NČŇ)PtC = CC 6H-4'-F] (NČHŇ = 1,5-bis(2'-pyridyl)benzene) (Pt-2) to QDs is more efficient than that from octahedral iridium(III) complex bis[(4,6-difluorophenyl)pyridinato-N, C2]-(picolinato)iridium (FIrpic). This different ET efficiency might be attributed to the different spatial structures between Pt-2 and FIrpic. Pure red emission with CIE coordinates of (0.66, 0.33) and maximum external quantum efficiency of 2.08% and white emission with power efficiency of 3.15 lm/W were realized at different concentrations of Pt-2 and QDs, respectively. © 2012 Optical Society of America.
 
ISSN0146-9592
2013 Impact Factor: 3.179
 
DOIhttp://dx.doi.org/10.1364/OL.37.001109
 
ISI Accession Number IDWOS:000302212200042
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorCheng, G
 
dc.contributor.authorLu, W
 
dc.contributor.authorChen, Y
 
dc.contributor.authorChe, CM
 
dc.date.accessioned2012-04-24T07:50:33Z
 
dc.date.available2012-04-24T07:50:33Z
 
dc.date.issued2012
 
dc.description.abstractWe report on hybrid light-emitting devices based on the emission of phosphorescent sensitized colloidal CdSe/ZnS quantum dots (QDs). Emission lifetime measurements demonstrated that the energy transfer (ET) from square-planar platinum(II) complex [4-CF 3-(NČŇ)PtC = CC 6H-4'-F] (NČHŇ = 1,5-bis(2'-pyridyl)benzene) (Pt-2) to QDs is more efficient than that from octahedral iridium(III) complex bis[(4,6-difluorophenyl)pyridinato-N, C2]-(picolinato)iridium (FIrpic). This different ET efficiency might be attributed to the different spatial structures between Pt-2 and FIrpic. Pure red emission with CIE coordinates of (0.66, 0.33) and maximum external quantum efficiency of 2.08% and white emission with power efficiency of 3.15 lm/W were realized at different concentrations of Pt-2 and QDs, respectively. © 2012 Optical Society of America.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationOptics Letters, 2012, v. 37 n. 6, p. 1109-1111 [How to Cite?]
DOI: http://dx.doi.org/10.1364/OL.37.001109
 
dc.identifier.doihttp://dx.doi.org/10.1364/OL.37.001109
 
dc.identifier.epage1111
 
dc.identifier.hkuros199134
 
dc.identifier.isiWOS:000302212200042
 
dc.identifier.issn0146-9592
2013 Impact Factor: 3.179
 
dc.identifier.issue6
 
dc.identifier.pmid22446241
 
dc.identifier.scopuseid_2-s2.0-84863346338
 
dc.identifier.spage1109
 
dc.identifier.urihttp://hdl.handle.net/10722/146386
 
dc.identifier.volume37
 
dc.languageeng
 
dc.publisherOptical Society of America. The Journal's web site is located at http://www.opticsinfobase.org/current.cfm?journal=3
 
dc.publisher.placeUnited States
 
dc.relation.ispartofOptics Letters
 
dc.relation.referencesReferences in Scopus
 
dc.rightsOptics Letters. Copyright © Optical Society of America.
 
dc.subjectCdSe/ZnS quantum dots
 
dc.subjectCIE coordinates
 
dc.subjectEmission lifetime
 
dc.subjectExternal quantum efficiency
 
dc.subjectIridium complex
 
dc.titleHybrid light-emitting devices based on phosphorescent platinum(II) complex sensitized CdSe/ZnS quantum dots
 
dc.typeArticle
 
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<description.abstract>We report on hybrid light-emitting devices based on the emission of phosphorescent sensitized colloidal CdSe/ZnS quantum dots (QDs). Emission lifetime measurements demonstrated that the energy transfer (ET) from square-planar platinum(II) complex [4-CF 3-(N&#268;&#327;)PtC = CC 6H-4&apos;-F] (N&#268;H&#327; = 1,5-bis(2&apos;-pyridyl)benzene) (Pt-2) to QDs is more efficient than that from octahedral iridium(III) complex bis[(4,6-difluorophenyl)pyridinato-N, C2]-(picolinato)iridium (FIrpic). This different ET efficiency might be attributed to the different spatial structures between Pt-2 and FIrpic. Pure red emission with CIE coordinates of (0.66, 0.33) and maximum external quantum efficiency of 2.08% and white emission with power efficiency of 3.15 lm/W were realized at different concentrations of Pt-2 and QDs, respectively. &#169; 2012 Optical Society of America.</description.abstract>
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Author Affiliations
  1. The University of Hong Kong