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Article: Carbazole/oligocarbazoles substituted silanes as wide bandgap host materials for solution-processable electrophosphorescent devices

TitleCarbazole/oligocarbazoles substituted silanes as wide bandgap host materials for solution-processable electrophosphorescent devices
Authors
KeywordsWide bandgap materials
Carbazole
Solution-processable
Silane
Issue Date2012
Citation
Organic Electronics: physics, materials, applications, 2012, v. 13, n. 12, p. 2825-2831 How to Cite?
AbstractWe have designed and synthesized a series of organic wide bandgap materials, namely DCzSiCz, DDCzSi and DTCzSi, by incorporating carbazole/oligocarbazoles via a silicon-bridged linkage mode. All the materials show good thermal stability and excellent solution-processibility. Their HOMOs and LUMOs could be tuned to facilitate the efficient carriers injection by the incorporated carbazole/oligocarbazoles, while their singlet and triplet energy levels still maintain high levels, all above 3.44 eV and 2.87 eV, respectively. High efficient blue electrophosphorescent devices with low turn-on voltage are realized using DCzSiCz, DDCzSi and DTCzSi as hosts for FIrpic through solution-processable method. Among them, DCzSiCz-based device demonstrates the best performance, showing a maximum brightness of 6600 cd m-2 at 11 V and maximum luminous efficiency of 8.40 cd A-1 at 5 V. © 2012 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/225894
ISSN
2015 Impact Factor: 3.471
2015 SCImago Journal Rankings: 1.215

 

DC FieldValueLanguage
dc.contributor.authorHu, Dehua-
dc.contributor.authorCheng, Gang-
dc.contributor.authorLiu, He-
dc.contributor.authorLv, Ying-
dc.contributor.authorLu, Ping-
dc.contributor.authorMa, Yuguang-
dc.date.accessioned2016-05-23T02:22:06Z-
dc.date.available2016-05-23T02:22:06Z-
dc.date.issued2012-
dc.identifier.citationOrganic Electronics: physics, materials, applications, 2012, v. 13, n. 12, p. 2825-2831-
dc.identifier.issn1566-1199-
dc.identifier.urihttp://hdl.handle.net/10722/225894-
dc.description.abstractWe have designed and synthesized a series of organic wide bandgap materials, namely DCzSiCz, DDCzSi and DTCzSi, by incorporating carbazole/oligocarbazoles via a silicon-bridged linkage mode. All the materials show good thermal stability and excellent solution-processibility. Their HOMOs and LUMOs could be tuned to facilitate the efficient carriers injection by the incorporated carbazole/oligocarbazoles, while their singlet and triplet energy levels still maintain high levels, all above 3.44 eV and 2.87 eV, respectively. High efficient blue electrophosphorescent devices with low turn-on voltage are realized using DCzSiCz, DDCzSi and DTCzSi as hosts for FIrpic through solution-processable method. Among them, DCzSiCz-based device demonstrates the best performance, showing a maximum brightness of 6600 cd m-2 at 11 V and maximum luminous efficiency of 8.40 cd A-1 at 5 V. © 2012 Elsevier B.V. All rights reserved.-
dc.languageeng-
dc.relation.ispartofOrganic Electronics: physics, materials, applications-
dc.subjectWide bandgap materials-
dc.subjectCarbazole-
dc.subjectSolution-processable-
dc.subjectSilane-
dc.titleCarbazole/oligocarbazoles substituted silanes as wide bandgap host materials for solution-processable electrophosphorescent devices-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.orgel.2012.09.010-
dc.identifier.scopuseid_2-s2.0-84867089327-
dc.identifier.volume13-
dc.identifier.issue12-
dc.identifier.spage2825-
dc.identifier.epage2831-

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