Synthesis of High-Triplet-Energy Host Polymer for Blue and White Electrophosphorescent Light-Emitting Diodes

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	Synthesis of High-Triplet-Energy Host Polymer for Blue and White Electrophosphorescent Light-Emitting Diodes
	Xu, Fei 1,2,5; Kim, Ji-Hoon 1,2; Kim, Hee Un 1,2; Jang, Jae-Ho 1,2; Yook, Kyoung Soo 3,4; Lee, Jun Yeob 3,4; Hwang, Do-Hoon 1,2
刊名	MACROMOLECULES
	2014-11-11
卷号	47 期号:21 页码:7397-7406
关键词	ETHER PHOSPHINE OXIDE) IRIDIUM COMPLEXES MAIN-CHAIN HIGH-EFFICIENCY POLYFLUORENE COPOLYMERS CONJUGATED BACKBONE DEVICES LEVEL ELECTROLUMINESCENCE PERFORMANCE
ISSN号	0024-9297
其他题名	Macromolecules
中文摘要	A high-triplet-energy host polymer consisting of 9-(4-(bis(9-(2-ethylhexyl)-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole and tetraphenylsilane units was designed and synthesized. The triplet energy (2.67 eV) is one of the highest values reported for conjugated polymer hosts. Suitable highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels of -5.61 and -2.24 eV, respectively, were also observed. Blue phosphorescent polymers were obtained by introducing bis[2-(4,6-difluorophenyl)pyridinato-N,C-2']iridium(III) picolinate (FIrpic) into the host polymer while white phosphorescent polymers were synthesized by introducing red emissive bis[2-phenylquinoline-N,C-2']iridium(III) picolinate ((Phq)(2)Irpic) into the blue phosphorescent one. Polymer light-emitting devices with the configuration ITO/PEDOT:PSS/PVK/EML/TSPO1/LiF/Al [ITO, indium tin oxide; PEDOT, poly(3,4-ethylenedioxythiophene); PSS, poly(styrenesulfonic acid); PVK, poly(N-vinylcarbazole); EML, the emitting layer was composed of polymer or polymer and 1,3-bis[5-(4-tert-butylphenyl)-1,3,4-oxadiazol-2-yl]benzene (OXD-7) in a doping ratio of 2:1); TSPO1, diphenylphosphine oxide-4-(triphenylsilyl)pheny] were subsequently fabricated. Efficient energy transfer from the host polymer to the blue and red iridium(III) complexes was observed owing to the high triplet energy of the host. One of the fabricated blue phosphorescent devices had a maximum luminous efficiency of 3.57 cd/A.
英文摘要	A high-triplet-energy host polymer consisting of 9-(4-(bis(9-(2-ethylhexyl)-9H-carbazol-3-yl)methyl)phenyl)-9H-carbazole and tetraphenylsilane units was designed and synthesized. The triplet energy (2.67 eV) is one of the highest values reported for conjugated polymer hosts. Suitable highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels of -5.61 and -2.24 eV, respectively, were also observed. Blue phosphorescent polymers were obtained by introducing bis[2-(4,6-difluorophenyl)pyridinato-N,C-2']iridium(III) picolinate (FIrpic) into the host polymer while white phosphorescent polymers were synthesized by introducing red emissive bis[2-phenylquinoline-N,C-2']iridium(III) picolinate ((Phq)(2)Irpic) into the blue phosphorescent one. Polymer light-emitting devices with the configuration ITO/PEDOT:PSS/PVK/EML/TSPO1/LiF/Al [ITO, indium tin oxide; PEDOT, poly(3,4-ethylenedioxythiophene); PSS, poly(styrenesulfonic acid); PVK, poly(N-vinylcarbazole); EML, the emitting layer was composed of polymer or polymer and 1,3-bis[5-(4-tert-butylphenyl)-1,3,4-oxadiazol-2-yl]benzene (OXD-7) in a doping ratio of 2:1); TSPO1, diphenylphosphine oxide-4-(triphenylsilyl)pheny] were subsequently fabricated. Efficient energy transfer from the host polymer to the blue and red iridium(III) complexes was observed owing to the high triplet energy of the host. One of the fabricated blue phosphorescent devices had a maximum luminous efficiency of 3.57 cd/A.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Polymer Science
研究领域[WOS]	Polymer Science
关键词[WOS]	ETHER PHOSPHINE OXIDE) ; IRIDIUM COMPLEXES ; MAIN-CHAIN ; HIGH-EFFICIENCY ; POLYFLUORENE COPOLYMERS ; CONJUGATED BACKBONE ; DEVICES ; LEVEL ; ELECTROLUMINESCENCE ; PERFORMANCE
收录类别	SCI
原文出处	http://pubs.acs.org/doi/abs/10.1021/ma5015929
语种	英语
WOS记录号	WOS:000344905800016
公开日期	2015-04-01
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11861]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Pusan Natl Univ, Dept Chem, Pusan 609735, South Korea 2.Pusan Natl Univ, Chem Inst Funct Mat, Pusan 609735, South Korea 3.Dankook Univ, Dept Polymer Sci & Engn, Yongin 448701, Gyeonggi, South Korea 4.Dankook Univ, Ctr Photofunct Energy Mat, Yongin 448701, Gyeonggi, South Korea 5.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Xu, Fei,Kim, Ji-Hoon,Kim, Hee Un,et al. Synthesis of High-Triplet-Energy Host Polymer for Blue and White Electrophosphorescent Light-Emitting Diodes[J]. MACROMOLECULES,2014,47(21):7397-7406.
APA	Xu, Fei.,Kim, Ji-Hoon.,Kim, Hee Un.,Jang, Jae-Ho.,Yook, Kyoung Soo.,...&Hwang, Do-Hoon.(2014).Synthesis of High-Triplet-Energy Host Polymer for Blue and White Electrophosphorescent Light-Emitting Diodes.MACROMOLECULES,47(21),7397-7406.
MLA	Xu, Fei,et al."Synthesis of High-Triplet-Energy Host Polymer for Blue and White Electrophosphorescent Light-Emitting Diodes".MACROMOLECULES 47.21(2014):7397-7406.