- Color-tunable thiazole-based iridium(III) complexes: Synthesis, characterization and their OLED applications
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With respect to the commonly used electron-deficient pyridyl group in the benchmark dopant Ir(ppy)3, incorporating the electron-rich thiazolyl group with different chromophores have not been extensively studied. In this paper, some iridium(III) complexes bearing functional ligands with the thiazolyl moiety were synthesized and characterized by1H and13C NMR, UV–Vis absorption and photoluminescence spectroscopy. The emission color of these thiazole-based Ir(III) complexes can be tuned from yellow to red and the best phosphorescent organic light-emitting device exhibited the maximum external quantum efficiency of 11.1%, current efficiency of 35.8 cd/A and power efficiency of 21.9 lm/W.
- Chau, Nga-Yuen,Ho, Po-Yu,Ho, Cheuk-Lam,Ma, Dongge,Wong, Wai-Yeung
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Read Online
- Organic compound, and organic electroluminescent device and electronic device using the same
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The present invention relates to an organic compound and an organic electroluminescent device and an electronic device using the same, wherein the organic compound has a structure formed by combining an indole carbazole-based planar conjugated group in a fused manner and a dibenzofuran substituted with an aryl group. The structure has higher hole mobility and higher energy transfer efficiency, and is suitable for being used as a light-emitting host material in an organic electroluminescent device. When the organic compound is used as a light emitting host material in an organic electroluminescent device, the light emitting efficiency and the service life of the device can be effectively improved, and the working voltage is reduced.
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Paragraph 0138-0140; 0141; 0145
(2021/11/10)
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- Compound constituting a hole transfer layer and an electron transfer layer of an organic light emitting diode or a method for producing the same
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The present invention relates to a compound constituting a hole transport layer and an electron transport layer of an organic light emitting diode, or a method for manufacturing the same. According to the present invention, it is possible to provide a plurality of compounds having excellent yields and excellent purity constituting the hole transport layer and the electron transport layer. An object of the present invention is to provide the compound constituting the hole transport layer and the electron transport layer of the organic light emitting diode, or the method for manufacturing the same.(AA) HPLC analysis result of a final productCOPYRIGHT KIPO 2020
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Paragraph 0089-0100
(2020/09/16)
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- Organic high molecular compound and application thereof
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The invention discloses an organic high molecular compound and application thereof. The general formula of the compound is shown in the description. The compound is can be applied to an organic electroluminescent device, such as a hole injection layer material, a hole transmission layer material, an electron stopping layer material, a light-emitting layer material and a covering layer material. Compared with the prior art, the organic high molecular compound has the following advantages that (1) the organic high molecular compound disclosed by the invention can be used as the hole injection layer material, the hole transmission layer material, the electron stopping layer material, the light-emitting layer material containing a green phosphorescent or a red fluorescent main body substance and the like and the covering layer material, so that the organic high molecular compound is applied to preparation of the organic electroluminescent device; (2) the driving voltage can be reduced, theluminous efficiency, the brightness, the thermal stability and the color purity are improved and the service life of the device is prolonged; (3) the organic electroluminescent device prepared by adopting the compound disclosed by the invention has the advantages of high efficiency and long service life. The formula is shown in the description.
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Paragraph 0211-0214
(2018/03/26)
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- An organic electroluminescent element using this derivative bis carbazole
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PROBLEM TO BE SOLVED: To provide a biscarbazole derivative capable of improving emission efficiency and an emission life of an organic electroluminescence element, and to provide an organic electroluminescence element using the derivative.SOLUTION: The biscarbazole derivative is represented by the formula.
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Paragraph 0171-0173
(2020/10/21)
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- Heteroarylamine derivatives and organoelectroluminescent device using the same
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PURPOSE: A heteroarylamine derivative and an organic electro luminescence containing the same are provided to lower driving voltage and to improve luminescence efficiency. CONSTITUTION: A heteroarylamine derivative is denoted by chemical formula 1. In chemical formula 1, Het1 is pyrrol group, pyrazole group, imidazole group, triazole group, oxazole group, pyridine group, dipyridyl group, terpyridyl group, pyrimidine group or triazine group. An organic electro luminescence device comprises an anode, cathode and a layer having an heteroarylamine derivative between the anode and cathode.
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- Novel organic compounds and an organic electroluminescent device comprising the same
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Provided is an organic compound for a capping layer in an organic electroluminescent device, which is selected from a group comprised of elements represented by chemical formula 1. In addition, provided is an organic electroluminescent device comprising the capping layer (CPL) which is made of the organic compound.COPYRIGHT KIPO 2016
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- Organic compounds for forming capping layer of an organic electroluminescent device and an organic electroluminescent device comprising the same
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Provided is an organic compound for forming a capping layer of an organic electroluminescent device selected from a group consisting of chemical formula 1. In addition, provided is the organic electroluminescent device equipped with the capping layer (CPL) made of the organic compound.COPYRIGHT KIPO 2015
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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Provided in the present invention are a novel compound which can improve light emitting efficiency, stability, and life, an organic electronic element using the same, and an electronic device thereof. The organic electronic element is characterized by comprising a first electrode; a second electrode; and an organic substance layer located between the first electrode and the second electrode, wherein the compound is contained in the organic substance layer. The organic electronic element is characterized by having the compound contained in at least one layer among a hole injection layer, a hole transfer layer, an light emitting auxiliary layer, or a light emitting layer of an organic substance layer.(140) Hole transfer layer(141) Buffer layer(150) Light emitting layer(151) Auxiliary light emitting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrode(130) Hole injection layer(120) Positive electrode(110) SubstrateCOPYRIGHT KIPO 2015
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Paragraph 0234-0236
(2016/10/08)
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- COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
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The present invention provides a novel compound which can improve the light emitting efficiency, stability, and lifetime of an element; an organic electronic element using the same; and an electronic device thereof. The organic electronic element comprises: a first electrode; a second electrode; and an organic material layer located between the first electrode and the second electrode, wherein the compound is included in the organic material layer.(110) Substrate(120) Positive electrode(130) Hole injection layer(140) Hole transporting layer(141) Buffer layer(150) Light-emitting layer(151) Light-emitting assisting layer(160) Electron transfer layer(170) Electron injection layer(180) Negative electrodeCOPYRIGHT KIPO 2015
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- AN ORGANIC ELECTROLUMINESCENT COMPOUND AND AN ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound according to the present invention, it is possible to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and noticeably improved driving lifespan.
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Paragraph 180; 181; 182; 183
(2015/12/08)
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- Optimizing the photovoltaic performance of thiocyanate-free ruthenium photosensitizers by structural modification of C^N cyclometalating ligand in dye-sensitized solar cells
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Five new thiocyanate-free ruthenium(II) complexes with different electron-donating functionalized cyclometalating ligands C^N were synthesized, characterized and applied as photosensitizers in dye-sensitized solar cells (DSSCs). Their photophysical, electrochemical, thermal and photovoltaic properties have been investigated and density functional theory (DFT) calculations have been carried out on these dyes. These dyes exhibit good thermal stability with the onset decomposition temperature at 5% weight-loss (Td) of around 330 °C. The DSSC device using the Ru(II) dye with the 9-tolylcarbazole chromophore exhibited the highest power conversion efficiency (η) up to 3.39%, with a short-circuit photocurrent density (Jsc) of 8.06 mA cm-2, an open-circuit photovoltage (Voc) of 0.62 V and a high fill factor (ff) of 0.68 under illumination of an AM 1.5 solar cell simulator.
- Siu, Chi-Ho,Ho, Cheuk-Lam,He, Jian,Chen, Tao,Majumda, Poulomi,Zhao, Jianzhang,Li, Hua,Wong, Wai-Yeung
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- A NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
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The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention provides the advantages of excellent luminous characteristics with lower driving voltages, compared to devices using conventional luminescent materials.
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- Iridium complexes containing 2-aryl-benzothiazole ligands: Color tuning and application in high-performance organic light-emitting diodes
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Three 2-aryl-benzothiazole chromophores were designed and synthesized for use as major cyclometalating ligands of iridium complexes, in which the aryl groups were N-phenyl-3-carbazolyl, 2-(9,9-dioctyl)fluorenyl and N-phenyl-2-carbazolyl. The homoleptic tris-cyclometalated and heteroleptic bis-cyclometalated iridium complexes, 1-5, were synthesized using these ligands. By adjusting the chemical structures and then the electronic state of these complexes, we were able to continuously tune the phosphorescence from yellow to saturated red with peak wavelengths in the order of 1 -1, 48.2 lm W-1, and 23.0% with CIE (0.46, 0.53), which represent the highest efficiencies for yellow OLEDs up to now. Furthermore, 1 was used to fabricate two-element white OLEDs in combination with a blue phosphor and high efficiencies of 57.9 cd A-1 and 21.9% were achieved, which are among the best efficiencies for two-emitting-component white OLEDs reported so far. The Royal Society of Chemistry 2013.
- Li, Jiuyan,Wang, Renjie,Yang, Ruixia,Zhou, Wei,Wang, Xin
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p. 4171 - 4179
(2013/08/15)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention has high green luminous efficiency and superior material lifespan characteristics, compared with conventional phosphorescent host materials, and thus can provide an organic electroluminescent device which is excellent in operational lifespan, and induces increased power efficiency and improves power consumption.
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Paragraph 166; 167
(2013/11/18)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention is better in luminous efficiency and lifespan characteristics compared to conventional materials. Using the compounds of the present invention, it is possible to manufacture an OLED device with a long operational lifespan. In addition, the compounds can improve the power efficiency of the device to reduce overall power consumption.
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- NOVEL COMPOUNDS FOR ORGANIC ELECTRONIC MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel compound and an organic electroluminescent device containing the same. Since the compounds according to the present invention have high efficiency in transporting electrons, crystallization could be prevented when manufacturing a device. Further, the compounds have good layer formability and improve the current characteristic of the device. Therefore, they can produce an organic electroluminescent device having lowered driving voltages and enhanced power efficiency.
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Page/Page column 16-17
(2013/02/27)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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Organic electroluminescent compounds comprising a triphenylene conjugated to a five-ring fused heterocyclic system, as depicted in formula 1 are provided. Also provided is an organic electroluminescent device comprising these compounds. The organic electroluminescent compounds disclosed herein exhibit good luminous efficiency and excellent material life. They can be used to manufacture OLED devices very superior in terms of operating life and which consume less power due to improved power efficiency.
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Page/Page column 20; 21
(2012/04/10)
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