- Triarylboron-Based Fluorescent Organic Light-Emitting Diodes with External Quantum Efficiencies Exceeding 20 %
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Triarylboron compounds have attracted much attention, and found wide use as functional materials because of their electron-accepting properties arising from the vacant p orbitals on the boron atoms. In this study, we design and synthesize new donor-accept
- Suzuki, Katsuaki,Kubo, Shosei,Shizu, Katsuyuki,Fukushima, Tatsuya,Wakamiya, Atsushi,Murata, Yasujiro,Adachi, Chihaya,Kaji, Hironori
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- Compound for organic luminescence and application of compound
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The invention relates to a compound for organic luminescence. The structure of the compound is shown as a formula (I), Ar1 and Ar2 are respectively and independently selected from hydrogen or an electron donating structural unit, but Ar1 and Ar2 are not hydrogen at the same time. The compound for organic luminescence is a thermally activated delayed fluorescent material with aggregation-induced emission property, is simple in process, easy to purify and high in yield, and can adjust the thermal property, luminescence property and the like of a final product by introducing different groups. When the material is applied to an organic electroluminescent device as a luminescent layer material, the manufactured device has long service life and can meet the requirements of panel manufacturing enterprises.
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Paragraph 0041; 0046-0047; 0048-0049
(2021/06/22)
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- Boron-containing organic electroluminescent material and application thereof in organic electroluminescent device
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The invention discloses a boron-containing organic electroluminescent material and application thereof in an organic electroluminescent device, the compound comprises boron groups, and the compound has strong group rigidity, and has the characteristics of
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Page/Page column 0084-0089; 0124-0125
(2020/06/20)
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- Arylamine compound and organic electroluminescent device thereof
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The invention provides an arylamine compound and an organic electroluminescent device thereof, and belongs to the technical field of organic photoelectric materials. In order to achieve better light emission inside a light-emitting layer so as to improve
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Paragraph 0104-0106; 0123-0128
(2020/10/20)
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- METHOD FOR PRODUCING (DIARYLAMINO) CARBAZOLE
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PROBLEM TO BE SOLVED: To provide a method for producing (diarylamino) carbazole in one stage, with high selectivity and high efficiency. SOLUTION: Halocarbazole represented by general formula (1) (where X is a halogen atom. n is an integer of 1 to 4) is r
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Paragraph 0043-0093
(2019/09/19)
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- ORGANIC LIGHT-EMITTING DIODE MATERIALS
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Described herin are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moeity D, each moiety D is covalently attached to either the moeity B or the moeity A, and each B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D and B are defined herein.
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Paragraph 0547; 0548; 0550
(2018/08/09)
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- Organic light-emitting diode materials
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Described herein are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moiety D, each moiety D is covalently attached to either the moiety B or the moiety A, and each moiety B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D, and B are defined herein.
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Paragraph 0351; 0352; 0355; 0373; 0385
(2017/07/26)
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- ORGANIC LIGHT-EMITTING DEVICE
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An organic light-emitting device including a first electrode; a second electrode; and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer comprises an emission layer, and wherein the organic layer comprises a first compound represented by Formula 1 and a second compound having the lowest excited triplet energy level greater than 2.73 electron volts: wherein in Formula 1, R11 to R33 are the same as described in the specification.
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- A carbazole compound and its preparation method, the organic electroluminescent device (by machine translation)
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This invention has offered a kind of carbazole compound, the carbazole compound of formula (1) structure. Compared with the prior art, the present invention provides the carbazole compound is introduced in the carbazole compound is connected with the ethe
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Paragraph 0133; 0134; 0135; 0136; 0137; 0138
(2016/10/10)
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- METHOD FOR PRODUCING CARBAZOLE COMPOUND HAVING TERTIARY AMINO GROUP, AND THE COMPOUND
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PROBLEM TO BE SOLVED: To provide a production method which can provide a carbazole compound having a tertiary amino group in high yield with suppressed formation of by-products, and which can simplify the production process. SOLUTION: The carbazole compound having a tertiary amino group is produced by using: a step of introducing a tertiary amino group into a compound comprising a 9-butoxycarbonylcarbazole structure; and a step of eliminating the butoxycarbonyl group from the compound. COPYRIGHT: (C)2016,JPOandINPIT
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- CARBAZOLE DERIVATIVE, MATERIAL FOR LIGHT EMITTING ELEMENT, LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AND ELECTRONIC DEVICE
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An object of the present invention is to provide a carbazole derivative which is useful in manufacturing a substance having resistance to oxidation. Another object is to provide a carbazole derivative which is useful in manufacturing a novel material with high reliability. Still another object is to provide a material for a light emitting element with high reliability. The present invention is a carbazole derivative represented by the following general formula (1) (where each of Ar1 and Ar2 represents an aryl group having 6 to 14 carbon atoms which may include a substitute, Ar1 and Ar2 may be either the same or different, and R in the formula represents hydrogen or an alkyl group having 1 to 4 carbon atoms). In addition, the present invention is a material for a light emitting element which includes a carbazole derivative represented by the following general formula (1) as a substituent.
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Page/Page column 57
(2010/11/26)
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- ANTHRACENE DERIVATIVE, MATERIAL FOR LIGHT EMITTING ELEMENT, LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AND ELECTRONIC DEVICE
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It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material. The structure for solving the above problems in accordance with the present invention is an anthracene derivative simultaneously having a diphenylanthracene structure and a carbazole skeleton in a molecule as represented by structural formula (1).
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Page/Page column 72-73
(2008/06/13)
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