Highly efficient iridium(III) complexes with diphenylquinoline ligands for organic light-emitting diodes: Synthesis and effect of fluorinated substitutes on electrochemistry, photophysics and electroluminescence
文献类型:期刊论文
作者 | Zhang XW ; Gao J ; Yang CL ; Zhu LN ; Li ZG ; Zhang K ; Qin JG ; You H ; Ma DG |
刊名 | journal of organometallic chemistry
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出版日期 | 2006 |
卷号 | 691期号:20页码:4312-4319 |
关键词 | EXCITED-STATE PROPERTIES ELECTROPHOSPHORESCENT DEVICES TRANSPORTING MATERIALS IR(III) PHOSPHORESCENCE MORPHOLOGY EMISSION |
ISSN号 | 0022-328x |
通讯作者 | yang cl |
中文摘要 | a series of novel cyclometalated iridium(iii) complexes bearing 2,4-diphenylquinoline ligands with fluorinated substituent were prepared and characterized by elemental analysis, nmr and mass spectroscopy. the cyclic voltammetry, absorption, emission and electroluminescent properties of these complexes were systematically investigated. electrochemical studies showed that the oxidation of the fluorinated complexes occurred at more positive potentials (in the range 0.57-0.69 v) than the unfluorinated complex 1 (0.42 v). in view of the energy level, the lowering of the lumo by fluorination is significantly less than that of the homo. the weak and low energies absorption bands in the range of 300-600 nm are well resolved, likely associated with mlct and (3)pi-pi* transitions. these complexes show strong orange red emission both in the solution and solid state. the emission maxima of the fluorinated complexes showed blue shift by 9, 24 and 15 nm for 2, 3 and 4, respectively, with respect to the unfluorinated analogous 1. multilayered organic light-emitting diodes (oleds) were fabricated by using the complexes as dopant materials. significantly higher performance and lower turn-on voltage were achieved using the fluorinated complexes as the emitter than that using the unfluorinated counterpart 1 under the same doping level. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000241213100020 |
公开日期 | 2010-08-17 |
源URL | [http://ir.ciac.jl.cn/handle/322003/16389] ![]() |
专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
推荐引用方式 GB/T 7714 | Zhang XW,Gao J,Yang CL,et al. Highly efficient iridium(III) complexes with diphenylquinoline ligands for organic light-emitting diodes: Synthesis and effect of fluorinated substitutes on electrochemistry, photophysics and electroluminescence[J]. journal of organometallic chemistry,2006,691(20):4312-4319. |
APA | Zhang XW.,Gao J.,Yang CL.,Zhu LN.,Li ZG.,...&Ma DG.(2006).Highly efficient iridium(III) complexes with diphenylquinoline ligands for organic light-emitting diodes: Synthesis and effect of fluorinated substitutes on electrochemistry, photophysics and electroluminescence.journal of organometallic chemistry,691(20),4312-4319. |
MLA | Zhang XW,et al."Highly efficient iridium(III) complexes with diphenylquinoline ligands for organic light-emitting diodes: Synthesis and effect of fluorinated substitutes on electrochemistry, photophysics and electroluminescence".journal of organometallic chemistry 691.20(2006):4312-4319. |
入库方式: OAI收割
来源:长春应用化学研究所
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