6267-02-3Relevant academic research and scientific papers
Novel organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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, (2020/08/29)
The present invention relates to an organic light emitting compound represented by formula A and an organic light emitting diode including the same. Substituents A1 to A4, R1 to R17, X, Y, a, b, m, n, p, L1, and L2 are identical to as defined in the detailed description.
Deuterated organic compounds for organic light-emitting diode and organic light-emitting diode including the same
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, (2020/12/15)
The present invention relates to an organic electroluminescent compound represented by chemical formula A and an organic light emitting device comprising the same. Substituents Y, Ar2 , L3 , K, p and x are as defined in the description of the invention. [Chemical A] (by machine translation)
An electroluminescent compound and an electroluminescent device comprising the same
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, (2020/12/16)
The present invention relates to an organic luminescent compound represented by chemical formula 1 and an organic electroluminescent device including the same. The organic luminescent compound according to the present invention has excellent luminous efficiency and lifetime properties of material, and thus, enables the manufacturing of an organic electroluminescent device having excellent luminous efficiency while having power efficiency and long lifetime properties. [Chemical formula 1].
New reductive rearrangement of: N-arylindoles triggered by the grubbs-stoltz reagent et3sih/kotbu
Allison, Mark,Arokianathar, Jude N.,Dimitrova, Daniela,Kolodziejczak, Krystian,Leach, Stuart G.,Murphy, John A.,Parkinson, John A.,Poole, Darren L.,Smith, Andrew J.,Tuttle, Tell,Young, Allan
, p. 3719 - 3726 (2020/04/20)
N-Arylindoles are transformed into dihydroacridines in a new type of rearrangement, through heating with triethylsilane and potassium tert-butoxide. Studies indicate that the pathway involves (i) the formation of indole radical anions followed by fragmentation of the indole C2-N bond, and (ii) a ring-closing reaction that follows a potassium-ion dependent hydrogen atom transfer step. Unexpected behaviors of 'radical-trap' substrates prove very helpful in framing the proposed mechanism.
Carbazole derivatives and organoelectro luminescent device using the same
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, (2020/11/28)
PURPOSE: A carbazole derivative is provided to drive an organic electroluminescent device at low voltage and to improve brightness when the derivative is used in an organic layer of the organic electroluminescent device, thereby improving economic efficiency. CONSTITUTION: A carbazole derivative is denoted by chemical formula 1. An organic electroluminescent device comprises a first electrode, a second electrode, and one or more organic layers between the first and second electrodes. The organic layers contain the carbazole derivative of chemical formula 1. The organic layers are selected among a hole injection layer, a hole transport layer, a functional layer with hole injecting and transporting functions, a light emitting layer, an electrode transport layer, and an electron injection layer. The light emitting layer contains one or more host compounds and one or more dopant compounds. The host compound is a carbazole derivative of chemical formula 1.
Heterocyclic com pounds and organic light-emitting diode including the same
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, (2021/01/29)
The present invention relates to a novel heterocyclic compound and an organic electroluminescent device comprising the same. The heterocyclic compound is represented by the following Chemical Formula 1, and the organic electroluminescent device including the heterocyclic compound has excellent driving voltage, luminous efficiency, and lifespan properties. Chemical Formula 1. (by machine translation)
Heterocyclic compound and organic light emitting device including the same
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Paragraph 0521; 0526-0529, (2020/07/15)
Provided are a heterocyclic compound and an organic light-emitting device including the same. The heterocyclic compound may be represented by Formula 1: in the Formula 1, A1, X2, Y1, Y2, m1, m2, R10,R20, R30, b10, b20 and b30 are same as described in the description.
Thermally-activated delayed fluorescence material and preparation method and application thereof
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Paragraph 0017; 0037; 0041, (2020/11/12)
The invention relates to a thermally-activated delayed fluorescence material and a preparation method and application thereof. The energy level difference between the singlet state and the triplet states of the thermally-activated delayed fluorescence material is small, so the thermally-activated delayed fluorescence material can be used as an organic light-emitting layer material of an OLED device and can improve the efficiency of the device. The fluorescence material has a molecular structural formula as described in the specification. In the molecular structural formula, R is selected frommethyl, ethyl, propyl, butyl and amyl groups.
Photoelectric conversion element, imaging device, optical sensor, and method of using photoelectric conversion element
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, (2020/02/29)
The present invention provides a photoelectric conversion element having a photoelectric conversion film which exhibits excellent photoelectric conversion efficiency and responsiveness, an imaging device, an optical sensor, and a method of using a photoelectric conversion element. In the photoelectric conversion element of the invention, a photoelectric conversion material contains at least one selected from the group consisting of a compound represented by General formula (1), a compound represented by General formula (2), and a compound represented by General formula (3).
Dark blue electroluminescent compound and preparation method and application thereof
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, (2020/05/30)
The invention discloses a dark blue electroluminescent compound and a preparation method and application thereof, and the compound is 2-(4-(9, 9-dimethylacridin-10(9H)-yl)-2, 5-diR2-based phenyl)-1-(4-R1-based phenyl)-1H-phenanthroimidazole. The preparation method of the compound is easy to operate and high in yield, the compounds exhibit dark blue fluorescence, half-width is less than 60 nm, thenon-doped OLED device prepared by taking the material as a luminescent material produces dark blue emission, a starting voltage is 3.3 V, the maximum brightness is greater than 20,000 cd.m, the external quantum efficiency is still greater than 3% when the brightness is up to 10,000 cd.m, and the material is a dark blue light material with excellent performance.
