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Conference Paper: High-efficiency green organic light-emitting devices utilizing phosphorescent bis-cylometalated alkynylgold(III) complex
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TitleHigh-efficiency green organic light-emitting devices utilizing phosphorescent bis-cylometalated alkynylgold(III) complex
 
AuthorsAu, KM
Wong, MC
Tsang, DPK
Chan, MY
Zhu, N
Yam, VWW
 
Issue Date2011
 
CitationThe 18th Symposium on Chemistry Postgraduate Research in Hong Kong, City University of Hong Kong, Hong Kong, 30 April 2011, p. I-68 [How to Cite?]
 
AbstractA new phosphorescent material of bis-cyclometalated alkynylgold(III) complex has been synthesized, characterized, and its device performance investigated. This luminescent gold(III) complex was found to exhibit rich photoluminescence (PL) and electroluminescence (EL) properties, and has been utilized as phosphorescent dopants in organic light-emitting diodes (OLEDs). At an optimized dopant concentration of 4 %, a device with a maximum external quantum efficiency (EQE) of 11.5 %, corresponding to a current efficiency of 37.4 cd/A and a power efficiency of 26.2 lm/W, has been obtained. Such a high EQE value is comparable to that of Ir(ppy)3-based devices. The present work suggests that the alkynylgold(III) complex is a promising phosphorescent material in terms of both efficiency and thermal stability.
 
DC FieldValue
dc.contributor.authorAu, KM
 
dc.contributor.authorWong, MC
 
dc.contributor.authorTsang, DPK
 
dc.contributor.authorChan, MY
 
dc.contributor.authorZhu, N
 
dc.contributor.authorYam, VWW
 
dc.date.accessioned2011-07-27T01:49:01Z
 
dc.date.available2011-07-27T01:49:01Z
 
dc.date.issued2011
 
dc.description.abstractA new phosphorescent material of bis-cyclometalated alkynylgold(III) complex has been synthesized, characterized, and its device performance investigated. This luminescent gold(III) complex was found to exhibit rich photoluminescence (PL) and electroluminescence (EL) properties, and has been utilized as phosphorescent dopants in organic light-emitting diodes (OLEDs). At an optimized dopant concentration of 4 %, a device with a maximum external quantum efficiency (EQE) of 11.5 %, corresponding to a current efficiency of 37.4 cd/A and a power efficiency of 26.2 lm/W, has been obtained. Such a high EQE value is comparable to that of Ir(ppy)3-based devices. The present work suggests that the alkynylgold(III) complex is a promising phosphorescent material in terms of both efficiency and thermal stability.
 
dc.identifier.citationThe 18th Symposium on Chemistry Postgraduate Research in Hong Kong, City University of Hong Kong, Hong Kong, 30 April 2011, p. I-68 [How to Cite?]
 
dc.identifier.epageI-68
 
dc.identifier.hkuros186729
 
dc.identifier.spageI-68
 
dc.identifier.urihttp://hdl.handle.net/10722/135817
 
dc.languageeng
 
dc.relation.ispartof18th Symposium on Chemistry Postgraduate Research in Hong Kong 2011
 
dc.titleHigh-efficiency green organic light-emitting devices utilizing phosphorescent bis-cylometalated alkynylgold(III) complex
 
dc.typeConference_Paper
 
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<item><contributor.author>Au, KM</contributor.author>
<contributor.author>Wong, MC</contributor.author>
<contributor.author>Tsang, DPK</contributor.author>
<contributor.author>Chan, MY</contributor.author>
<contributor.author>Zhu, N</contributor.author>
<contributor.author>Yam, VWW</contributor.author>
<date.accessioned>2011-07-27T01:49:01Z</date.accessioned>
<date.available>2011-07-27T01:49:01Z</date.available>
<date.issued>2011</date.issued>
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<description.abstract>A new phosphorescent material of bis-cyclometalated alkynylgold(III) complex has been synthesized, characterized, and its device performance investigated. This luminescent gold(III) complex was found to exhibit rich photoluminescence (PL) and electroluminescence (EL) properties, and has been utilized as phosphorescent dopants in organic light-emitting diodes (OLEDs). At an optimized dopant concentration of 4 %, a device with a maximum external quantum efficiency (EQE) of 11.5 %, corresponding to a current efficiency of 37.4 cd/A and a power efficiency of 26.2 lm/W, has been obtained. Such a high EQE value is comparable to that of Ir(ppy)3-based devices. The present work suggests that the alkynylgold(III) complex is a promising phosphorescent material in terms of both efficiency and thermal stability.</description.abstract>
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