Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes

doi:10.1021/jp3034566

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	Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes
	Yang, Xiao 1; Huang, Hong 1; Pan, Biao 1; Aldred, Matthew P.1; Zhuang, Shaoqing 1; Wang, Lei 1; Chen, Jiangshan 2; Ma, Dongge 2
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2012-07-19
卷号	116 期号:28 页码:15041-15047
ISSN号	1932-7447
DOI	10.1021/jp3034566
英文摘要	The hole-transporting material 4,4',4 ''-tri(N-carbazolyl)triphenylamine (TCTA) is widely used as a host in phosphorescent organic light-emitting diodes (PhOLEDs). Based on the unipolar TCTA, we synthesized a novel bipolar host material, (9-(4-(bis(4-(9H-carbazol-9-yl)phenyl)amino)phenyl)-9H-carbazol-3-yl) diphenylphosphine oxide (TCTA-PO) by directly imparting an electron-transporting diphenylphosphine oxide moiety to TCTA. It was found that TCTAPO can be used as an ideal versatile host for blue, orange, and white PhOLEDs due to its high triplet energy (E-T = 2.83 eV), high glass transition temperature (T-g = 165 degrees C), and bipolar charge-transporting ability. The maximum power efficiencies of 40.7 and 43.7 lm/W were achieved in the blue and orange PhOLEDs with FIrpic and (fbi)(2)Ir(acac) as the blue and orange dopants, respectively. Furthermore, the single-emitting-layer white organic light-emitting diode (WOLED) based on the emitter of TCTAPO:FIrpic,(fbi)(2)Ir(acac) exhibited a maximum current efficiency of 43.7 cd/A, a maximum power efficiency of 47.0 Im/W, and a maximum external quantum efficiency (eta(ext)) of 17.296. Compared to the PhOLEDs with TCTA as the host, the maximum power efficiencies increased about 56%, 36%, and 81%, for blue, orange, and white devices, respectively.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000306503200037
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47273]
专题	中国科学院化学研究所
通讯作者	Wang, Lei
作者单位	1.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Yang, Xiao,Huang, Hong,Pan, Biao,et al. Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2012,116(28):15041-15047.
APA	Yang, Xiao.,Huang, Hong.,Pan, Biao.,Aldred, Matthew P..,Zhuang, Shaoqing.,...&Ma, Dongge.(2012).Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes.JOURNAL OF PHYSICAL CHEMISTRY C,116(28),15041-15047.
MLA	Yang, Xiao,et al."Modified 4,4 ',4 ''-Tri(N-carbazolyl)triphenylamine as a Versatile Bipolar Host for Highly Efficient Blue, Orange, and White Organic Light-Emitting Diodes".JOURNAL OF PHYSICAL CHEMISTRY C 116.28(2012):15041-15047.