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题名: Highly efficient phosphorescent materials based on Ir(III) complexes-grafted on a polyhedral oligomeric silsesquioxane core
作者: Yu, TZ; Xu, ZX; Su, WM(苏文明); Zhao, YL; Zhang, H; Bao, YJ
通讯作者: Yu, TZ
刊名: DALTON TRANSACTIONS
发表日期: 2016
DOI: 10.1039/c6dt02383e
卷: 45, 期:34
收录类别: SCI ; EI
文章类型: 期刊论文
部门归属: 印刷电子学部
英文摘要: A new iridium(III) complex containing a coumarin derivative as the cyclometalated ligand (L) and a carbazole- functionalized beta-diketonate (Cz-acac-allyl) as the ancillary ligand, namely, Ir(III) bis(3-(pyridin2-yl)coumarinato-N,C-4)(1-(9-butyl-9H-carbazol-3-yl)hept-6-ene-1,3-dionato-O,O) [Ir(L)(2)(Cz-acac-allyl)], was firstly synthesized as the emissive iridium(III) complex. Then three new phosphorescent polyhedral oligomeric silsesquioxane (POSS) materials, consisting of the emissive Ir(III) complex and carbazole moieties covalently attached to a polyhedral oligomeric silsesquioxane (POSS) core were successfully synthesized by hydrosilylation reaction in the presence of platinum(0)-1,3-divinyl-1,1,3,3-tetramethyl-disiloxane (Pt-dvs) as the catalyst. These phosphorescent POSS materials offer many advantages including amorphous properties, good thermal stabilities, and good solubility in common solvents, and high purity via column chromatography. The photoluminescence spectra of the POSS materials in solution and in the solid state indicate a reduction in the degrees of interactions among the Ir(III) complex units and concentration quenching due to the bulky POSS core. Solution processed light-emitting devices based on these phosphorescent POSS materials exhibit a maximum external quantum efficiency (EQE) of 9.77%.
关键词[WOS]: EMITTING ELECTROCHEMICAL-CELLS ; IRIDIUM(III) COMPLEXES ; ORGANIC LIGHT ; DEVICES ; LIGAND ; ELECTROLUMINESCENCE ; POLYMERS ; EMITTERS ; PROBES
语种: 英语
JCR小类分区: 二区
WOS记录号: WOS:000382144300028
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4573
Appears in Collections:印刷电子学部_崔铮团队_期刊论文

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Recommended Citation:
Yu, TZ,Xu, ZX,Su, WM,et al. Highly efficient phosphorescent materials based on Ir(III) complexes-grafted on a polyhedral oligomeric silsesquioxane core[J]. DALTON TRANSACTIONS,2016,45(34).
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