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Synthesis and electro-optical properties of carbazole derivatives with high band gap energy

Title
Synthesis and electro-optical properties of carbazole derivatives with high band gap energy
Authors
Kim, KS[Kim, Ki-Soo]Jeong, S[Jeong, Seonju]Kim, C[Kim, Cham]Kwon, Y[Kwon, Younghwan]Choi, BD[Choi, Byeong-Dae]Han, YS[Han, Yoon Soo]
DGIST Authors
Kim, KS[Kim, Ki-Soo]; Jeong, S[Jeong, Seonju]; Kim, C[Kim, Cham]Choi, BD[Choi, Byeong-Dae]; Han, YS[Han, Yoon Soo]
Issue Date
2009-11-02
Citation
Thin Solid Films, 518(1), 284-289
Type
Article
Article Type
Article
Keywords
AminesCarbazoleDoping (Additives)Energy GapHelmet Mounted DisplaysHole Transporting MaterialHost MaterialIridiumLight EmissionLuminanceMaterialsNaphthaleneOled DeviceOptical PropertiesOrganic Light-Emitting Diodes (OLEDs)Organic PolymersPhosphorescencePhosphorescent DopantSound Insulating MaterialsSynthesis (Chemical)Tin
ISSN
0040-6090
Abstract
Two materials containing carbazole moieties and exhibiting a high band gap energy, 3,8-di(9H-carbazol-9-yl)-6-phenylphenanthridine (DCzP) and 3,6-di(naphthalene-2-yl)-9-phenyl-9H-carbazole (DNaC), were synthesized via C{single bond}N coupling and Suzuki coupling reactions, respectively. The compound DCzP exhibited blue emission with the CIE coordinates of x = 0.165 and y = 0.136 from the OLED device, ITO(indium-tin oxide)/NPB(N,N′-bis(naphthalene-1-yl)-N,N′-bis(phenyl)benzidine)/DCzP/LiF/Al. The doped device, ITO/2-TNATA(4,4′,4″-Tris(2-naphtylphenyl-phenylamino) triphenyl amine)/NPB/DCzP + Ir(ppy)3/BCP(2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline)/Alq3(tris(8-hydroxyquinoline)aluminum/LiF/Al, showed bright yellowish-green emission with a maximum luminance of 23,000 cd/m2 when the synthesized DCzP was applied as a host material for the phosphorescent green dopant. From the double layer device, ITO/DNaC/Alq3/LiF/Al, in which DNaC was used as the hole transporting material, the yellowish-green color arising from the Alq3 was also observed. © 2009 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/1150
DOI
10.1016/j.tsf.2009.06.016
Publisher
Elsevier
Related Researcher
Files:
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Collection:
Magnet-Controlled Materials Research Group1. Journal Articles
Intelligent Devices and Systems Research Group1. Journal Articles


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