- Organic compound containing carbazole and application thereof
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The invention discloses an organic compound containing carbazole and application thereof, which relate to the technical field of semiconductors. The structure of the organic compound containing carbazole is shown as a general formula (1). The organic compound provided by the invention has a relatively high triplet state energy level, a relatively wide band gap and relatively high mobility, and a device adopting the organic compound provided by the invention can effectively improve the efficiency of an OLED device and prolong the service life of the OLED device through structural optimization.
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Paragraph 0335-0337; 0345-0347; 0355; 0356; 0359
(2021/09/22)
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- Compound for preparing organic photoelectric devices
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The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a compound for preparing organic photoelectric devices. The structural formula is shown inthe specification. The series of organic materials containing xanthone, thiazolone, acridone and other structures synthesized in the invention can have wide ultraviolet absorption through modificationof different groups, and can be used as organic materials or stabilizers with high oxygen, heat, light and ultraviolet stability, especially organic electronic and photoelectric materials or organicelectronic material stabilizers. The material can be used as a hole type charge transport material in the field of OLED display.
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Paragraph 0105-0108; 0111; 0113-0116; 0119
(2020/08/18)
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- Compound taking triarylamine as core, and preparation method and application of compound
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The invention discloses a compound taking triarylamine as a core, and a preparation method and an application of the compound, and belongs to the technical field of semiconductors. The compound provided by the invention has the structure represented by a general formula (1). The invention also discloses the preparation method and the application of the compound. The compound provided by the invention has relatively high glass transition temperature and molecular thermal stability, proper HOMO and LUMO energy levels and relatively high mobility; and the photoelectric property of an OLED devicecan be effectively improved and the service life of the OLED device can be effectively prolonged by optimizing the structure of the device.
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Paragraph 0101-0107
(2020/02/14)
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- Aggregation induced emission of diketopyrrolopyrrole (DPP) derivatives for highly fluorescent red films
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A large number of diketopyrrolopyrrole (DPP) compounds showing aggregation induced emission (AIE) have been reported in the past few years. However, although DPP compounds exhibited AIE and excellent luminescence properties, their luminescence properties in solid or film states were not much focused on. Here we synthesized and characterized a series of DPP compounds with triphenylamine (TPA) moieties to investigate the AIE properties in the solid film state depending on the functional groups (TPA, BTPA, and MTPA) attached to the TPA moieties. T2 and D2 thin films showed excellent fluorescence quantum yields of 31% and 26%, respectively, compared to an M2 thin film (9%). The restriction of an intramolecular rotation process could inhibit the aggregation induced quenching process and play a key role in achieving highly fluorescent molecules in the solid state.
- Hwang, Tae Gyu,Kim, Jeong Yun,Namgoong, Jin Woong,Lee, Jae Moon,Yuk, Sim Bum,Kim, Se Hun,Kim, Jae Pil
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p. 1064 - 1074
(2019/05/24)
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- Organic luminescence compound and organic luminescence device thereof
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The invention discloses an organic luminescence compound and an organic luminescence device thereof, and relates to the technical field of an organic photoelectric material. A conjugated system of theorganic luminescence compound is great, so that higher hole mobility is realized; good hole transmission performance is shown. In addition, the organic luminescence compound provided by the inventionalso has good thermal stability and solubility; the film forming of the material is facilitated. The organic luminescence device using the organic luminescence material as an organic matter layer hasthe advantages that the driving voltage is lower; the luminescence efficiency and luminescence brightness are high; the service life is longer.
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Paragraph 0076-0078
(2018/05/16)
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- Phenanthroline- tBuOK Promoted Intramolecular C-H Arylation of Indoles with ArI under Transition-Metal-Free Conditions
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The first example of phenanthroline-tBuOK promoted intramolecular radical C-H arylation of N-(2-iodobenzyl)indoles without involvement of transition metals has been developed. A variety of substituted 6H-isoindolo [2, 1-a] indoles were prepared by a simple and efficient intramolecular cyclization using 1,10-phenanthroline in the presence of potassium tert-butoxide and chlorobenzene. This strategy provides a fast and versatile access to isoindolo[2,1-a]indole derivatives for the synthesis of pharmaceuticals and organic electroluminescent (EL) materials.
- Shan, Xiang-Huan,Yang, Bo,Zheng, Hong-Xing,Qu, Jian-Ping,Kang, Yan-Biao
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supporting information
p. 7898 - 7901
(2019/01/04)
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- Organic light-emitting material containing triazine group and aniline group, application as well as device
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The invention belongs to the field of preparation and application science and technology of organic light-emitting materials, and particularly relates to an organic light-emitting material containingtriazine group and aniline group and a preparation method thereof, application as well as a device. The organic light-emitting material provided by the invention takes triazine and benzidine as cores,and has excellent heat stability so as to be beneficial to the improvement of efficiency and stability of the device, has high fluorescence quantum yield to be used as a light-emitting guest materialand has good dual polarity to be used as a light-emitting host material.
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- Organic electroluminescent compound, organic electroluminescent device and application thereof
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The invention relates to the field of luminescent materials, and in particular provides an organic electroluminescent compound, an organic electroluminescent device and application thereof. The structural formula of the organic electroluminescent compound is described in the description. The compound can be used as HTL, EBL, B-dopant, Host, EBL, ETL and CPL materials; when being used in the organic electroluminescent device, the compound can reduce the driving voltage, improve the luminous efficiency, brightness, thermal stability and color purity and prolong device lifetime.
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Paragraph 0108; 0114; 0116; 0117
(2018/06/26)
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- A fluorene derivative and organic light-emitting device (by machine translation)
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The invention discloses a fluorene derivatives and organic light-emitting device, relates to organic photoelectric material technical field. The invention of fluorene derivatives conjugated system is relatively large, so it has higher hole mobility, and exhibits a good hole transmission performance, in addition the invention of fluorene derivatives also has good thermal stability and solubility, beneficial material into a film; the application of the fluorene derivatives as the organic matter layer of the organic light emitting device, with a relatively low driving voltage, high luminous efficiency and the luminous brightness, and has a long service life. (by machine translation)
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Paragraph 0068; 0072-0074
(2018/03/26)
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- Benzopyrimidine derivative and organic luminescent device thereof
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The invention discloses benzopyrimidine derivative and an organic luminescent device thereof. The organic luminescent device disclosed by the invention comprises a negative pole, a positive pole and one or a plurality of organic matter layers, wherein the organic matter layers are arranged between the negative pole and the positive pole, and at least one organic matter layer contains the benzopyrimidine derivative disclosed by the invention. The benzopyrimidine derivative disclosed by the invention has the advantages of larger conjugated system, higher hole mobility and better hole transfer performance. In addition, the benzopyrimidine derivative disclosed by the invention further has better thermal stability and solubility and is favorable for film formation of materials. As the benzopyrimidine derivative disclosed by the invention can be used as the organic luminescent device of the organic matter layer, the benzopyrimidine derivative has the advantages of lower driving voltage, higher luminous efficiency and luminous brightness and longer service life.
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Paragraph 0075; 0079-0081
(2018/04/03)
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- Novel green-ray host compound and preparation method and application thereof
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A novel carbazole derivative is a perssad which is used for connecting Ar1 and Ar2 of ether structures in a carbazole compound and improving the three-dimensional performance of the carbazole compound. According to a novel green-ray host compound and a preparation method and application of the novel green-ray host compound, disclosed by the invention, the luminous wave length is easily adjusted while a three-dimensional effect of the carbazole compound is formed by introducing an ether compound, and a new derivative, which is used for increasing the luminous efficiency of a device and prolonging the service life of the device, of the carbazole compound is provided; the device which is made by using the new carbazole derivative has the advantages of high luminance, excellent heat resistance, long service life, high efficiency and the like.
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Paragraph 0035; 0036; 0037
(2016/10/08)
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- New carbazole compound and preparation method and application thereof
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A new carbazole derivative is an asymmetric carbazole compound; the hole mobility degree is increased through linking of Ar1 and Ar2 and introduction of an R1 group, and performance is improved through adjustment of the Ar2 molecular weight and ligand types; devices manufactured by using the new carbazole derivative has the characteristics of high brightness, excellent heat resistance, long lifetime, high efficiency and the like.
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Paragraph 0038; 0039; 0040; 0041
(2016/10/08)
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- Hole Transport Materials with High Triplet Energy for Long Lifespan OLED and OLED Containing the Same
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According to the present invention, hole transport materials induce a substituent which turns an orientation angle to two phenylene groups of a biphenyldiamine partial structure, and an aryl group to two nitrogen atoms of the biphenyldiamine partial structure, thereby improving light emitting properties such as low driving voltage and high light emitting efficiency, and increasing thermal stability by raising rotational energy barrier of molecules and lifespan of a diode. The hole transport material is a biphenyldiamine derivative represented by chemical formula 1. Accordingly, the present invention can manufacture an organic light emitting diode (OLED) of high efficiency, low voltage, high brightness, and long lifespan by using the same.COPYRIGHT KIPO 2015
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Paragraph 0099; 0100; 0109-0110
(2016/12/01)
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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 0162; 0165
(2016/10/08)
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- Anthraquinone-based intramolecular charge-transfer compounds: Computational molecular design, thermally activated delayed fluorescence, and highly efficient red electroluminescence
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Red fluorescent molecules suffer from large, non-radiative internal conversion rates (kIC) governed by the energy gap law. To design efficient red thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diodes (OLEDs), a large fluorescence rate (kF) as well as a small energy difference between the lowest singlet and triplet excited states (ΔEST) is necessary. Herein, we demonstrated that increasing the distance between donor (D) and acceptor (A) in intramolecular-charge-transfer molecules is a promising strategy for simultaneously achieving small ΔEST and large kF. Four D-Ph-A-Ph-D-type molecules with an anthraquinone acceptor, phenyl (Ph) bridge, and various donors were designed, synthesized, and compared with corresponding D-A-D-type molecules. Yellow to red TADF was observed from all of them. The kF and ΔEST values determined from the measurements of quantum yield and lifetime of the fluorescence and TADF components are in good agreement with those predicted by corrected time-dependent density functional theory and are approximatively proportional to the square of the cosine of the theoretical twisting angles between each subunit. However, the introduction of a Ph-bridge was found to enhance kF without increasing ΔEST. Molecular simulation revealed a twisting and stretching motion of the N-C bond in the D-A-type molecules, which is thought to lower ΔEST and kF but raise kIC, that was experimentally confirmed in both solution and doped film. OLEDs containing D-Ph-A-Ph-D-type molecules with diphenylamine and bis(4-biphenyl)amine donors demonstrated maximum external quantum efficiencies of 12.5% and 9.0% with emission peaks at 624 and 637 nm, respectively.
- Zhang, Qisheng,Kuwabara, Hirokazu,Potscavage, William J.,Huang, Shuping,Hatae, Yasuhiro,Shibata, Takumi,Adachi, Chihaya
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supporting information
p. 18070 - 18081
(2015/02/19)
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- AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT COMPRISING SAME
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An aromatic amine derivative represented by the following formula (1), wherein at least one of Ar1 to Ar3 is represented by the following formula (2), wherein X1 to X3 are independently a nitrogen atom or CR2, provided that two of X1 to X3 are a nitrogen atom and X1 and X3 are not simultaneously a nitrogen atom.
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Paragraph 0103; 0104; 0106
(2013/05/22)
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- Organic light-emitting device
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The present invention provides a heterocyclic compound and an organic light-emitting device including the heterocyclic compound. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltage, high luminance and long lifespan.
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Page/Page column 25
(2011/04/18)
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- CARBAZOLE DERIVATIVE, AND LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE USING CARBAZOLE DERIVATIVE
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To provide a light-emitting element having high luminous efficiency and to provide a light-emitting device and an electronic device which consumes low power and is driven at low voltage, a carbazole derivative represented by the general formula (1) is provided. In the formula, α1, α2, α3, and α4 each represent an arylene group having less than or equal to 13 carbon atoms; Ar1 and Ar2 each represent an aryl group having less than or equal to 13 carbon atoms; R1 represents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and R2represents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, m, and n are each independenly 0 or 1.
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Page/Page column 179-180
(2009/07/17)
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