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Article: Synthesis and light-emitting properties of difunctional dendritic distyrylstilbenes

TitleSynthesis and light-emitting properties of difunctional dendritic distyrylstilbenes
Authors
Issue Date2001
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/macromolecules
Citation
Macromolecules, 2001, v. 34 n. 19, p. 6821-6830 How to Cite?
AbstractA novel series of poly(benzyl ether) type dendritic distyrylbenzenes beating various electron or hole affinitive moieties including 1,3,4-oxadiazole, cyano, and propoxy groups on the outer surface of the first- and second-generations dendritic wedges have been synthesized for blue-light emission. Both theoretical and optical studies show that incorporation of the surface functionalized dendritic wedges into the nonconjugated meta positions of a distyrylstilbene skeleton does not disrupt the coplanarity of the π-conjugated core. Excitation of the surface functionalized dendritic wedges leads to substantial energy transfer from the dendritic wedges to the emissive core (up to 59%). Importantly, all the dendritic distyrylstilbenes show very high fluorescence quantum yields (over 93%). Single-layer light-emitting diodes (LED) using dendritic distyrylstilbene (DSB) doped poly(N-vinylcarbazole) (PVK) film as an emissive layer with structure of (ITO/DSB:PVK/Al) have been fabricated and investigated. The emission wavelengths and spectral features are very similar among the solution emission, solid-state photoluminescence, and electroluminescence spectra. The device performance of the first-generation dendritic DSB doped single-layer LEDs is generally superior to that of the corresponding second-generation dendrimer based devices. In addition, the propoxy surface functionalized dendritic DSB devices consistently show the best device performance and relative stability among the others.
Persistent Identifierhttp://hdl.handle.net/10722/167705
ISSN
2015 Impact Factor: 5.554
2015 SCImago Journal Rankings: 2.497
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKwok, CCen_US
dc.contributor.authorWong, MSen_US
dc.date.accessioned2012-10-08T03:10:15Z-
dc.date.available2012-10-08T03:10:15Z-
dc.date.issued2001en_US
dc.identifier.citationMacromolecules, 2001, v. 34 n. 19, p. 6821-6830en_US
dc.identifier.issn0024-9297en_US
dc.identifier.urihttp://hdl.handle.net/10722/167705-
dc.description.abstractA novel series of poly(benzyl ether) type dendritic distyrylbenzenes beating various electron or hole affinitive moieties including 1,3,4-oxadiazole, cyano, and propoxy groups on the outer surface of the first- and second-generations dendritic wedges have been synthesized for blue-light emission. Both theoretical and optical studies show that incorporation of the surface functionalized dendritic wedges into the nonconjugated meta positions of a distyrylstilbene skeleton does not disrupt the coplanarity of the π-conjugated core. Excitation of the surface functionalized dendritic wedges leads to substantial energy transfer from the dendritic wedges to the emissive core (up to 59%). Importantly, all the dendritic distyrylstilbenes show very high fluorescence quantum yields (over 93%). Single-layer light-emitting diodes (LED) using dendritic distyrylstilbene (DSB) doped poly(N-vinylcarbazole) (PVK) film as an emissive layer with structure of (ITO/DSB:PVK/Al) have been fabricated and investigated. The emission wavelengths and spectral features are very similar among the solution emission, solid-state photoluminescence, and electroluminescence spectra. The device performance of the first-generation dendritic DSB doped single-layer LEDs is generally superior to that of the corresponding second-generation dendrimer based devices. In addition, the propoxy surface functionalized dendritic DSB devices consistently show the best device performance and relative stability among the others.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/macromoleculesen_US
dc.relation.ispartofMacromoleculesen_US
dc.titleSynthesis and light-emitting properties of difunctional dendritic distyrylstilbenesen_US
dc.typeArticleen_US
dc.identifier.emailKwok, CC:garykwokcc@hku.hken_US
dc.identifier.authorityKwok, CC=rp00847en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/ma010749+en_US
dc.identifier.scopuseid_2-s2.0-0035845806en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035845806&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume34en_US
dc.identifier.issue19en_US
dc.identifier.spage6821en_US
dc.identifier.epage6830en_US
dc.identifier.isiWOS:000170853500046-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridKwok, CC=7102029161en_US
dc.identifier.scopusauthoridWong, MS=7403908037en_US

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