- High Luminance in Organic Electroluminescent Devices with Bis(10-hydroxybenzoquinolinato)beryllium as an Emitter
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An organic electroluminescent (EL) devices with bis(10-hydroxybenzoquinolinate)beryllium (Bebq2) as an emitter was fabricated.A device structure of was employed.Its color was green, and its emission peak was 516 nm.This device offered high performance with a luminance of 1.9*104 cd/m2 and a luminous efficiency of 3.5 lm/W.
- Hamada, Yuji,Sano, Takeshi,Fujita, Masayuki,Fujii, Takanori,Nishio, Yoshitaka,Shibata, Kenichi
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- Synthesis and photophysical properties of complexes of Be(II) and Zn(II) with 10-hydroxybenzo[h]quinoline ligand
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Two 10-hydroxybenzo[h]quinoline metal complexes, bis(10-hydroxybenzo[h]quinolinato) beryllium (Bebq2) and bis(10-hydroxybenzo[h]quinolinato)zincum (Znbq2), have been synthesized. The structure are characterized by 1HNMR, IR and so on. The photophysical processes of Bebq2 and Znbq2 have been carefully investigated by fluorescence spectra. The results show that the compounds emit yellow-green and yellow light. The emission peaks are at 492 and 512 nm, respectively. In addition, the light-emitting can be quenched by electron donor, N,N-dimethylaniline (DMA), and the quenching process follows the Stern-Volmer equation. Furthermore, the molecular interactions of Bebq2 and Znbq2 with electron acceptor, dimethylterephthalate (DMTP), were also carefully investigated. It displayed that the Znbq2 is a potential substitute for Bebq2 as an excellent emitting material.
- Guo, Zhiqiang,Dong, Zhenming,Zhu, Ruitao,Jin, Shuo,Liu, Bo
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- Organic light-emitting element and display apparatus
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Provided is an organic light-emitting element having high luminous efficiency and a long lifetime. The organic light-emitting element includes a pair of electrodes and an organic compound layer placed between the pair of electrodes, in which the organic compound layer includes an iridium complex having a benzo[f]isoquinoline of a specific structure as a ligand and a metal complex compound of a specific structure.
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Page/Page column 91-93
(2020/04/26)
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- Metal complex compound and an organic light emitting device including the same
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Disclosed are a metal complex compound represented by the following Chemical Formula 1 or 3, and an organic light emitting diode device including the same. In Chemical Formulae 1 and 3, M1, M2, R1 to R14, y1 and y2 are as defined in the detailed description.
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Paragraph 0063
(2016/12/12)
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