Polyethers containing 4-(carbazol-2-yl)-7-arylbenzo[c]-1,2,5-thiadiazole chromophores as solution processed materials for hole transporting layers of OLEDs

doi:10.1016/j.optmat.2017.12.028

CORC > 化学研究所 > 中国科学院化学研究所

	Polyethers containing 4-(carbazol-2-yl)-7-arylbenzo[c]-1,2,5-thiadiazole chromophores as solution processed materials for hole transporting layers of OLEDs
	Krucaite, G.1; Tavgeniene, D.1; Xie, Z.2; Lin, X.2; Zhang, B.2; Grigalevicius, S.1
刊名	OPTICAL MATERIALS
	2018-02-01
卷号	76 页码:63-68
关键词	Glass Transition Temperature Amorphous Material Hole Transporting Material Ionization Potential Organic Light Emitting Diode
ISSN号	0925-3467
DOI	10.1016/j.optmat.2017.12.028
英文摘要	Two polyethers containing electroactive pendent 4-(carbazol-2-yl)-7-arylbenzo[c]-1,2,5-thiadiazole moieties have been synthesized by the multi-step synthetic route. Full characterization of their structures is presented. The polymers represent derivatives of very high thermal stability with initial thermal degradation temperatures of 425 degrees C and 431 degrees C. Glass transition temperatures of the amorphous materials were also very high and reached values of 154 degrees C and 163 degrees C. The electron photoemission spectra of thin layers of the polymers showed ionization potentials of 5.84 eV and 5.93 eV. Hole-transporting properties of the polymeric materials were tested in the structures of organic light emitting diodes with Alq(3) as the green emitter and electron transporting material. An electroluminescent device containing hole-transporting layer (HTL) of the polymer with electroactive 4-carbazolyl-7-phenylbenzo[c]1,2,5-thiadiazole moieties exhibited turn on voltage of 6.2 V, maximum photometric efficiency of 2.5 cd/A and maximum brightness exceeding 300 cd/m(2). The device containing HTL of the polymer with 4carbazolyl-7-(1-naphtyl)benzo[c]-1,2,5-thiadiazole moieties demonstrated turn on voltage of 5.2 V, maximum photometric efficiency of 1.6 cd/A and maximum brightness exceeding 1500 cd/m2. The efficiencies were about 30-90% higher than that of the device containing widely used hole transporting layers of poly(9-vinylcarbazole). (C) 2017 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000425560700010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45589]
专题	中国科学院化学研究所
通讯作者	Grigalevicius, S.
作者单位	1.Kaunas Univ Technol, Dept Polymer Chem & Technol, Radvilenu Plentas 19, LT-50254 Kaunas, Lithuania 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Krucaite, G.,Tavgeniene, D.,Xie, Z.,et al. Polyethers containing 4-(carbazol-2-yl)-7-arylbenzo[c]-1,2,5-thiadiazole chromophores as solution processed materials for hole transporting layers of OLEDs[J]. OPTICAL MATERIALS,2018,76:63-68.
APA	Krucaite, G.,Tavgeniene, D.,Xie, Z.,Lin, X.,Zhang, B.,&Grigalevicius, S..(2018).Polyethers containing 4-(carbazol-2-yl)-7-arylbenzo[c]-1,2,5-thiadiazole chromophores as solution processed materials for hole transporting layers of OLEDs.OPTICAL MATERIALS,76,63-68.
MLA	Krucaite, G.,et al."Polyethers containing 4-(carbazol-2-yl)-7-arylbenzo[c]-1,2,5-thiadiazole chromophores as solution processed materials for hole transporting layers of OLEDs".OPTICAL MATERIALS 76(2018):63-68.