- 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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- ORGANIC ELECTRIC ELEMENT COMPRISING COMPOUND FOR ORGANIC ELECTRIC ELEMENT AND ELECTRONIC DEVICE THEREOF
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The present invention provides an organic electric element and an electronic device thereof, wherein at least three of organic material layers of the organic electric element comprise the compound capable of increasing the luminous efficiency, lowering the driving voltage, increasing the heat resistance, improving color purity and lifetime of the organic electric element.
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Paragraph 0114-0116
(2021/04/02)
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- Aromatic compound and organoelectroluminescent device comprising the compound
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The present invention relates to an aromatic compound and an organic electroluminescent device including the same. The aromatic compound is represented by chemical formula 1, and the organic electroluminescent device is excellent in driving voltage, luminous efficiency and lifetime characteristics.
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Paragraph 0588-0593
(2021/08/31)
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- Synthesis method of dibenzofuran/thiophene-4-boric acid
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The invention discloses a synthesis method of dibenzofuran/thiophene-4-boric acid, and belongs to the field of heterocyclic boric acid synthesis in organic chemistry. The synthesis method comprises the following steps: adding dibenzofuran or dibenzothioph
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Paragraph 0019
(2019/03/28)
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- ORGANIC ELECTROLUMINESCENT DEVICES AND MATERIAL THEREOF
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A material of the organic electroluminescent devices is provided. The material is a luminescent material and comprises a structure represented by Formula (I): wherein E is single bond or C(Y1)(Y2);Y1 ,Y2 is individually select from alkyl groups of 1 to 4 carbon. When E is single bond, Ar is selected from substituted or unsubstituted 、、、、、、、 or . When E is C(Y1)(Y2), Ar is selected from substituted aryl group of 6 to 24 carbon, unsubstituted aryl group of 6 to 24 carbon, substituted heterocyclic group or unsubstituted heterocyclic group. The heterocyclic group includes nitrogen, oxygen or sulfur.
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Page/Page column 11-12
(2019/01/24)
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- NOVEL TRIAZINE COMPOUND, AND ORGANIC ELECTRONIC ELEMENT AND PLANT-GROWING LIGHTING THAT USE THE SAME
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PROBLEM TO BE SOLVED: To provide a triazine compound which has a high triplet energy level and excellent heat resistance, and can be used as an organic electronic element material realizing an element with high efficiency, low voltage and a long life. SOLUTION: In the triazine compound, as represented by the general formula [1] in the figure, a triazine backbone moiety is linked to a dibenzofuran or dibenzothiophene backbone moiety via a biphenyl backbone moiety, where X is an oxygen atom or sulfur atom. SELECTED DRAWING: None COPYRIGHT: (C)2018,JPO&INPIT
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Paragraph 0074
(2018/07/28)
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- NOVEL ORGANIC HETEROCYCLIC COMPOUND AND LIGHT-EMITTING DEVICE COMPRISING SAME
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The present invention relates to an organic light-emitting compound represented by [Chemical Formula A] and an organic light-emitting device. In Chemical Formula, A, X, Y, Z, and the substituents R1 to R8, and R11 to R20 are as defined in the specification.
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Paragraph 0104-0105
(2018/03/28)
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- Naphtho-fluorene carbazole compound and application thereof
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The invention belongs to the field of organic electroluminescence, and in particular relates to a naphtho-fluorene carbazole compound and application thereof. An OLED device manufactured by taking thesynthesized organic compound as a main body light-emitting material can be applied in the fields of AM drive OLED display, PM drive OLED display or OLED illumination. The external quantum efficiency,the power efficiency and the current efficiency of the device are greatly improved, and the service life of the device is obviously prolonged, so that the naphtho-fluorene carbazole compound has thegood market prospect.
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Paragraph 0138; 0141-0143
(2018/03/26)
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- Compound containing a 5-membered heterocycle and organic light-emitting diode using same, and terminal for same
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Disclosed are a novel-structural compound including a 5-membered heterocycle, an organic electronic device using the same, and a terminal thereof.
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Page/Page column 42-44
(2018/07/29)
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- Method for preparing aromatic boronic acid
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The invention discloses a method for preparing aromatic ring boric acid, which comprises the following steps of: (1) firstly, leading the mixed solution of aromatic ring compounds, n-butyllithium and a chelant with nitrogen heterocycle to have a reaction
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Paragraph 0032; 0033
(2017/04/04)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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Disclosed is a compound represented by chemical formula 1. Also, disclosed is an organic electronic element comprising a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer includes the compound represented by chemical formula 1. If the compound represented by chemical formula 1 is included in the organic layer, light emitting efficiency, stability, engineering life, etc. can be improved.(110) Substrate(120) Positive electrode(130) Hole-injection layer(140) Hole transport layer(141) Buffer layer(150) Light emitting layer(151) Light-emitting assisting layer(160) Electron transport layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2016
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Paragraph 0203-0205
(2016/10/07)
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- Compound Containing Five Membered heterocyclic compound, And Organic Electronic Element Using The Same, Terminal Thereof
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PURPOSE: A compound containing 5-membered heterocycles which is synthesized by a compound containing two or more 5-membered heterocycles is provided to be used as a hole injection material, a hole transport material, a light emitting material, and an electron transport material. CONSTITUTION: A compound is denoted by chemical formula 1. An organic electric device comprises one or more organic layers containing the compound. The organic layers are formed with the compound by a soluble process. The organic electric device comprises a first electrode, one or more organic layers, and a second electrode which are sequentially laminated. The organic layer is one of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer. A terminal comprises a display device containing the organic electric device, and a control unit which drives the display device.
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Paragraph 0075-0079
(2016/10/27)
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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 0088; 0089; 0090; 0091; 0092
(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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- ORGANIC LIGHT COMPOUND AND ORGANIC LIGHT DEVICE USING THE SAME
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PURPOSE: An organic luminescent compound and an organic light device for the solar power generation using the same are provided to offer high luminous efficiency, luminescent brightness, chromatic purity, and luminescence lifetime. CONSTITUTION: An organi
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Paragraph 0112-0115
(2016/10/08)
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- ORGANIC ELECTRONIC ELEMENT USING A COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, AND AN ELECTRONIC DEVICE THEREOF
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Provided in the present invention is an organic electric element comprising a first electrode, a second electrode, and an organic layer located between the first electrode and the second electrode, and including at least one light emitting layer. A dopant
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Paragraph 0191-0194
(2016/10/10)
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- COMPOUND COMPRISING A FIVE-MEMBERED HETERO RING, AN ORGANIC ELECTRICAL ELEMENT USING THE SAME AND A TERMINAL THEREOF
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Disclosed are a compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof.
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Paragraph 0057; 0059-0060
(2013/03/28)
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- The role of ate complexes in the lithium-sulfur, lithium-selenium and lithium-tellurium exchange reactions
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Hypervalent ate complexes are presumptive intermediates in the metal-halogen, metal-tellurium, and related exchange reactions. The effect of o,o′-biphenyldiyl vs. diphenyl substitution on formation of tellurium ate complexes was studied by a kinetic technique and by NMR spectroscopy. Only a modest increase in the association constant (Kate) was measured. When Li/M exchanges of o,o′-biphenyldiyl sulfides and selenides were made intramolecular by means of a m-terphenyl framework (12-S, 12-Se, 21), enormous increases (> 109) in the rate of Li/S and Li/Se exchange were observed compared to acyclic models. Apparently, these systems are ideally preorganized to favor the T-shaped geometry of the hypervalent intermediates. For the selenium systems, ate complex intermediates (20-Se, 26) were detected spectroscopically in THF- or THF/HMPA-containing solutions. A DNMR study showed that Li/Se exchange was substantially faster than exchange of the lithium reagents with the ate complex. Therefore, these ate complexes are not on the actual Li/Se exchange pathway.
- Reich, Hans J.,Gudmundsson, Birgir Oe.,Green, D. Patrick,Bevan, Martin J.,Reich, Ieva L.
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p. 3748 - 3772
(2007/10/03)
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- Elongated phosphoranes by C-C coupling of haloaroylmethylidene-triphenylphosphoranes: Synthesis and applications
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Haloaroylmethylidenephosphoranes 3 can be subjected to Pd(o) mediated C-C coupling reactions to yield diaryl-, arylhetaryl-, dihetaryl, arylethenylaryl/hetaryl- and arylethynylaryl/hetaryl-carbonylmethylidenephosphoranes 4-9. Suzuki-Kumada reactions can a
- Thiemann, Thies,Umeno, Kuniharu,Wang, Jian,Tabuchi, Yumiko,Arima, Kazuya,Watanabe, Masataka,Tanaka, Yasuko,Gorohmaru, Hideki,Mataka, Shuntaro
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p. 2090 - 2110
(2007/10/03)
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