- Dibenzocarbazole fused ring compound and organic electroluminescent device thereof
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The invention provides a dibenzocarbazole fused ring compound and an organic electroluminescent device thereof, and relates to the technical field of an organic optoelectronic material. A carbazoles structure is relatively high in redox potential value and excellent in stability in an air or lighting condition. Through introduction of a fused-ring rigid asymmetric and dense structure, the obtainedaromatic amines derivative is improved in thermal stability. The compound is used to prepare an organic electroluminescent device. Specifically, when the compound is taken as a main material in the organic electroluminescent device, the carbazoles main material having a rigid structure is high in glass-transition temperature, which is beneficial for prolonging the life of the organic electroluminescent device. The organic electroluminescent device shows high efficiency and low driving voltage, is not prone to crystallize, and is superior to a common OLED device.
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Paragraph 0093-0095
(2018/03/06)
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- Aromatic amine derivative as well as preparation method and application thereof
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The invention provides an aromatic amine derivative as well as a preparation method and application thereof, and relates to the technical field of organic photoelectric materials. By introducing a fluorenylidene, subindenofluorene or spirobifluorene structure, the conjugation degree of a system is improved, and the thermal stability of the aromatic amine derivative obtained by the invention is enabled to be high; the aromatic amine derivative can be used for producing an organic electroluminescence device, particularly can serves as a hole-transport material in the organic electroluminescence device and shows the advantages of high luminous efficiency and long service life; the organic electroluminescence device produced by using the aromatic amine derivatives is superior to a common OLED (Organic Light Emitting Diode) device. The invention also provides the preparation method of the aromatic amine derivatives, which is simple; raw materials are easy to obtain.
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Paragraph 0047; 0048; 0049; 0050
(2017/07/19)
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- Fluorene-based boronic acids as fluorescent chemosensor for monosaccharides at physiological pH
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Two fluorene-based boronic acids, 9,9-dimethyl-9H-fluoren-2-yl-2-boronic acid (1) and 9,9-dimethyl-9H-fluoren-2,7-diyl-2,7-diboronic acid (2), were synthesized and their sensing abilities for detection of D-monosaccharides were investigated by fluorescence at physiological pH. It was found that both boronic acids 1 and 2 have high selectivity and sensitivity for D-fructose with stability constant of 47.2 and 412.9, respectively. The sensor 2 showed a linear response toward D-fructose in the concentration range from 5 × 10-5 to 10-1 mol L-1 with the detection limit of 2 × 10-5 mol L-1.
- Hosseinzadeh, Rahman,Mohadjerani, Maryam,Pooryousef, Mona
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p. 549 - 555
(2015/12/04)
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- Nitrogenous heterocyclic derivative and organic electroluminescence device making use of the same
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A novel nitrogen-containing heterocyclic compound having a specific structure and an organic electroluminescence device comprising an anode, a cathode and an organic thin film layer which comprises a single layer or a plurality of layers comprising at least a light emitting layer and is disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the above nitrogen-containing heterocyclic derivative singly or as a component of a mixture. The organic electroluminescence device exhibits a great luminance of emitted light and a great efficiency of light emission even under application of a low voltage.
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Page/Page column 43-44
(2011/11/30)
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- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE UTILIZING THE SAME
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Provided is a novel aromatic amine derivative with specified structure. Also provided is an organic electroluminescence device having one or more organic thin-film layers including at least a luminescent layer interposed between a cathod and an anode, in which at least one of the organic thin-film layers contains the above aromatic amine derivative alone or as a component of mixture. As a result, there is provided an organic electroluminescence device that has high emission luminance and high heat resistance, excelling in high-temperature storage ability and has long life, and provided an aromatic amine derivative for realizing the organic electroluminescence device.
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Page/Page column 21; 22
(2008/06/13)
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- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE UTILIZING THE SAME
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A novel aromatic amine derivative with specified structure. Further, there is provided an organic electroluminescence device having one or more organic thin-film layers including at least a luminescent layer interposed between a negative electrode and a positive electrode, wherein at least one of the organic thin-film layers contains the above aromatic amine derivative alone or as a component of mixture. As a result, there is provided an organic electroluminescence device that has high emission luminance and high heat resistance, excelling in high-temperature storability and has long life, and provided an aromatic amine derivative for realization of the organic electroluminescence device.
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Page/Page column 32; 33
(2008/06/13)
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