- S,S-dioxo-dibenzothiophene and phenanthroimidazole based small molecule and application thereof in electroluminescent devices
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The invention discloses an S,S-dioxo-dibenzothiophene and phenanthroimidazole based small molecule and application thereof in electroluminescent devices. Phenanthroimidazole is used as a donor unit, S,S-dioxo-dibenzothiophene is used as an acceptor unit, and a novel donor-acceptor type blue fluorescent molecule is constructed. The molecule has the characteristics of S,S-dioxo-dibenzothiophene suchas wide band gap, high fluorescence quantum yield, strong electron affinity, high electron mobility, and also has the characteristics of phenanthroimidazole such as large conjugate rigid structure, bipolar transmission, and the like. The molecule has an asymmetric structure, and can inhibit molecular aggregation and reduce exciton quenching. In addition, the emission spectrum can be adjusted by changing the connection sites of the two units. The small molecule can be used for preparing high-efficiency blue light organic electroluminescent devices with different emission wavelengths.
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Paragraph 0023; 0026; 0027-0028
(2020/07/12)
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
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Provided are a compound represented by Formula 1, and an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, wherein the organic material layer comprised the compound represented by Formula 1, and the driving voltage of an organic electronic device can be lowered, and the luminous efficiency, color purity and life time of an organic electronic device can be improved by comprising the compound represented by Formula 1 in the organic material layer.
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Paragraph 0093; 0094
(2018/03/30)
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- Non-Doped Deep Blue and Doped White Electroluminescence Devices Based on Phenanthroimidazole Derivative
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A novel deep-blue emitter PhImPOTD based on phenathroimidazole was synthesized, which is incorporated by an electron-donating dibenzothiophene unit and electron-withdrawing phenanthroimidazole and diphenylphosphine oxide moieties. Furthermore, the weak π–π stacking and intermolecular aggregation render the photoluminescence quantum yield is as high as 0.34 in the solid state. Non-doped organic light emitting diodes (OLEDs) based on PhImPOTD emitter exhibits a low turn-on voltage of 3.6?V, a favorable efficiency of 1.13?cd A?1 and a deep blue emission with Commission Internationale de l’Eclairage (CIE) coordinates of (0.15, 0.08). The CIE is very close to the NTSC (National Television Standards Committe) blue standard (CIE: 0.14, 0.08). PhImPOTD is also utilized as blue emitter and the host for a yellow emitter (PO-01) to fabricate white organic light-emitting diodes (WOLEDs). This gives a forward-viewing maximum CE of 4.83?cd A?1 and CIE coordinates of (0.32, 0.32) at the luminance of 1000?cd?m?2. Moreover, the single-carrier devices unambiguously demonstrate that typical bipolar-dominant characteristics of PhImPOTD. This work demonstrates not only that the phenanthroimidazole unit is an excellent building block to construct deep blue emission materials, but also the introduction of a diphenylphosphine oxide deprotonation substituent is an efficient tactic for harvesting deep-blue emitting devices.
- Chen, Shuo,Wu, Yukun,Hu, Shoucheng,Zhao, Yi,Fang, Daining
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p. 451 - 461
(2017/03/07)
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
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Provided is a compound which is represented by chemical formula 1. Also, provided is an organic electrical device which comprises: a first electrode; a second electrode; and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound represented by chemical formula 1. When the compound represented by chemical formula 1 is contained in the organic material layer of the organic electrical device, driving voltage decreases, while luminous efficiency, color purity, and lifespan increase.COPYRIGHT KIPO 2017
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Paragraph 0145-0147
(2017/06/23)
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- COMPOUND FOR ORGANIC ELECTRIC ELEMENT, ORGANIC ELECTRIC ELEMENT COMPRISING THE SAME AND ELECTRONIC DEVICE THEREOF
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The present invention refers to formula 1 compounds represented by number under public affairs substrate. In addition, electrode number 1, number 2 electrode and said number 1 electrode including said number 2 electrode and electrode under public affairs number organic solvent, said organic compound layer is formed comprises a formula 1 compound. Organic compound represented by formula 1 organic layer of the electrical component are included, a predetermined driving voltage, luminous efficiency, can be fixed to the color purity and their service life. (by machine translation)
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Paragraph 0138; 0139; 0140; 0141
(2017/04/19)
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- Compound Containing Dibenzothiophene, Arylamine Derivatives And Organic Electronic Element Using The Same, Terminal Thereof
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PURPOSE: A compound containing dibenzothiophene and arylamine derivatives and an organic electronic element using the same are provided to be used as a hole injection, hole transport, electron injection, electron transport, light emitting material and passivation(capping) material. CONSTITUTION: A compound containing dibenzothiophene and arylamine derivative is denoted by chemical formula 1. An organic electronic element contains one or more organic layers containing the compound of chemical formula 1. The organic layer is prepared by a soluble process using the compound of chemical formula 1. The organic layer is a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, or electron injection layer.
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Paragraph 0090; 0091; 0092; 0093; 0095
(2016/10/09)
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- Compound Containing 5-Membered Heterocycle And Organic Electronic Element Using The Same, Terminal Thereof
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The present invention refers to heterocycle user five won including and optical material using it organic device, provides terminal with.
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Paragraph 0083; 0084; 0085; 0086; 0087
(2016/10/27)
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- Deep blue organic light-emitting devices enabled by bipolar phenanthro[9,10-d]imidazole derivatives
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Two blue fluorescent phenanthroimidazole derivatives (PhImFD and PhImTD) with a D-π-A structure are synthesized by attaching a hole-transporting dibenzofuran or dibenzothiophene and an electron-transporting phenanthroimidazole moiety and characterized. The nonplanar twisted structures reduce molecular aggregation, which endows both of the compounds with good thermal properties, and film-forming abilities as well as high quantum yields in CH2Cl2 and in the solid state. Non-doped organic light emitting diodes (OLEDs) are fabricated by employing the compounds PhImFD and PhImTD as emitters and exhibited promising performances. The devices show a deep blue emission with Commission Internationale de l'Eclairage (CIE) coordinates of (0.15, 0.11) for PhImFD and (0.15, 0.10) for PhImTD. PhImFD and PhImTD, with the desired bipolar-dominant characteristics, render devices with a low driving voltage of 3.6 V. The energy levels of the materials were found to be related to the donor units in the compounds with different substituents. Device B, using PhImTD as the emitting layer (EML), with well fitting energy levels and increased electron transport ability, possesses favorable efficiencies of 1.34 cd m-2 for CE, 0.82 lm W-1 for PE and 1.63% for EQE. PhImFD and PhImTD are utilized as blue emitters and the host for a yellow emitter, PO-01, to fabricate white organic light-emitting diodes (WOLEDs) that give a forward-viewing maximum CE of 8.12 cd m-2 and CIE coordinates of (0.339, 0.330). The results demonstrated not only that the phenanthroimidazole unit is an excellent building block to construct deep blue emission materials, but also that chemical structure modification by the introduction of a suitable electron-donor substituent could influence the performance of devices.
- Chen, Shuo,Wu, Yukun,Zhao, Yi,Fang, Daining
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p. 72009 - 72018
(2015/09/08)
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- AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING SAME
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An aromatic amine derivative represented by formula (1): wherein L1, L2, Ar1, Ar2, R1, R2, a, b, and Q are as defined in the specification. An organic electroluminescence device having at least one organic thin film layer which includes the aromatic amine derivative has high emission efficiency and long lifetime.
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Paragraph 0187; 0188
(2014/08/19)
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- AROMATIC HETEROCYCLIC DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
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An aromatic heterocyclic derivative represented by the following formula (1), a material for an organic electroluminescence device and an organic electroluminescence device including these:
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Page/Page column 72
(2012/11/08)
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- Photochemistry and photophysics of halogen-substituted dibenzothiophene oxides
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Dibenzothiophene-5-oxide (DBTO) cleanly produces dibenzothiophene (DBT) on direct photolysis, but with very low quantum yield. A proposed mechanism involves scission of the S-O bond which is coupled to an intersystem crossing step, thus producing the sulfide and O(3P) via a unimolecular pathway. To test this hypothesis, heavy atom substituted DBTOs were prepared and photolyzed. Iodo-, bromo-, and chloro-substituted DBTOs show higher quantum yields for deoxygenation than does the parent molecule, in the order consistent with an intersystem crossing-related heavy atom effect. 2-Iododibenzothiophene also undergoes photochemical deiodination. Phosphorescence data are consistent with heavy-atom assisted intersystem crossing.
- Nag, Mrinmoy,Jenks, William S.
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p. 8177 - 8182
(2007/10/03)
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- A new synthesis of fungicidal methyl (E)-3 methoxypropenoates
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Several structural analogues of strobilurin A having general formula (E)-18, in which the methyl (E)-3-methoxypropenoate unit is linked to substituted aromatic, alkenyl or cyclopentenyl substrates, have been efficiently and selectively prepared by Pd-catalyzed cross-coupling reactions between (Z)-2-methoxy-1-(methoxycarbonyl)ethenylzinc halides, (Z)-19, and aryl halides, alkenyl halides or triflates or cyclopentenyl triflates, respectively. Compounds (Z)-19, which represent a new class of highly functionalized and stereodefined organozinc derivatives, have been synthesized in very high yield by reaction of THF solutions of easily available methyl (Z)-2-iodo- or (Z)-2-bromo-3-methoxypropenoate, (Z)-8 and (Z)-12, respectively, with an activated Zn/Ag couple in the presence of TMEDA. Compounds (E)-18 synthesized according to this procedure include substances which are known to be able to control agrochemically important fungi as well as derivatives which are able to inhibit the growth of fungi which deteriorate papery materials.
- Rossi, Renzo,Bellina, Fabio,Ciucci, Donatella,Carpita, Adriano,Fanelli, Corrado
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p. 7595 - 7614
(2007/10/03)
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- Synthesis of Some 4-Substituted and 4,6-Disubstituted Dibenzothiophenes
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The synthesis is described of various 4-substituted (1) and 4,6-disubstituted (2) dibenzothiophenes by lithiation reactions.The factors controlling the formation of 4,6-disubstituted dibenzothiophenes by the lithiation of 4-methyl- and 4-ethyl-dibenzothiophene at the 6-position versus lithiation at the α-carbon of the 4-substituent are examined.
- Katritzky, Alan R.,Perumal, Subbu
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p. 1737 - 1740
(2007/10/02)
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