- New blue host materials based on anthracene-containing dibenzothiophene
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A series of novel host blue-emitting materials based on anthracene have been synthesized and investigated in which, a π-electron-rich dibenzothiophene moiety was introduced as a side group to fine adjust the HOMO/LUMO levels of the anthracene and enhance the ability of hole-transport and electron-injection. These materials exhibit good film-forming capabilities, and display strong blue fluorescence in solution. To explore the electroluminescent properties of these materials, sky blue devices of 2-TNATA (60 nm)/NPB (10 nm)/Host: BUBD-1 (40 nm)/Alq3 (15 nm)/LiF (1 nm)/Al (150 nm) were fabricated. For the device with 9, 10-bis(dibenzothiophen-4-yl)anthracene as the host, an electroluminescence efficiency of 13.14 cd/A and 6.76 lm/W at 20 mA/cm2 and 6.09 V were achieved, with Commission Internationale d'Eclairage (CIEx,y) color coordinates of (x = 0.15, y = 0.30).
- Wang, Lei,Wu, Zhi-Yong,Wong, Wai-Yeung,Cheah, Kok-Wai,Huang, Hong,Chen, Chin H.
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Read Online
- Novel compound and organic light emitting device comprising the same
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The present invention provides a novel compound and an organic light emitting device using the same. The present invention provides a compound represented by chemical formula 1. The compound represented by chemical formula 1 described above can be used as a material for an organic layer of the organic light emitting device, and can improve efficiency, low driving voltage, and/or lifespan characteristics in the organic light emitting device.
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Paragraph 0158; 0163-0165; 0167-0169
(2021/03/09)
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- Compound, organic luminescent material and organic electroluminescent device
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The invention provides a compound as shown in a general formula (I), which has a mother structure of sym-triphenyl substituted anthracene, is high in bond energy among atoms, has good thermal stability, is beneficial to solid-state accumulation among molecules, is large in bandwidth, has a light-emitting region in a blue light region, is high in light-emitting intensity, and has a proper energy level with adjacent levels. And injection and migration of excitons are facilitated. When the compound is used as a blue light host material in a luminescent layer, the driving voltage of an organic electroluminescent device can be effectively reduced, the luminous efficiency is improved, and the service life is prolonged. The invention also provides an organic electroluminescent device and a display device containing the compound of the general formula (I).
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Paragraph 0163; 0164; 0166
(2021/08/19)
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- Organic compound and electronic element and electronic device using same (by machine translation)
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The invention belongs to the technical field of organic materials, and particularly relates to an organic compound and an electronic element and an electronic device using the same, wherein the organic compound has the structure shown 1. When the compound is used as an electron transport layer for preparing an organic electroluminescent device, the service life of the organic electroluminescent device can be effectively prolonged, and the luminous efficiency or the driving voltage can be improved to a certain extent. (by machine translation)
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Paragraph 0140-0145
(2021/01/15)
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- Asymmetric antracene derivatives having two naphthyl groups and organic light-emitting diode including the same
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The present invention relates to antracene derivatives represented by [Formula A] and [Formula B], and an organic light-emitting diode including the same. Substituents X_1 to X_14, Y, and Z are the same as defined in the detailed description.
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Paragraph 0285; 0290-0291
(2019/12/25)
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- Antracene derivatives having heteroaryl substituted phenyl group and organic light-emitting diode including the same
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The present invention relates to an antracene derivative represented by the following [Formula A] and an organic light-emitting diode including the same. Z , Y, and L are the same as defined in the detailed description of the invention.
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Paragraph 0286; 0291; 0292
(2019/12/25)
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- Asymmetric antracene derivatives having two naphthyl groups and organic light-emitting diode including the same
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The present invention relates to an antracene derivative represented by the following [Formula A] or [Formula B], and an organic light-emitting diode including the same. Substituents X_1 to X_7 , Y, and Z are the same as defined in the detailed description of the invention.
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Paragraph 0415; 0416; 0420; 0421
(2020/01/09)
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- Semiconducting Material Comprising a Phosphine Oxide Matrix and Metal Salt
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The present invention is directed to a semiconducting material comprising: i) a compound according to formula (I) wherein R1, R2 and R3 are independently selected from C1-C30-alkyl, C3-C30 cycloalkyl, C2-C30-heteroalkyl, C6-C30-aryl, C2-C30-heteroaryl, C1-C30-alkoxy, C3-C30-cycloalkyloxy, C6-C30 aryloxy, and from structural unit having general formula E-A-, wherein—A is a C6-C30 phenylene spacer unit, and—E is an electron transporting unit that is selected from C10-C60 aryl and C6-C60 heteroaryl comprising up to 6 heteroatoms independently selected from O, S, P, Si and B and that comprises a conjugated system of at least 10 delocalized electrons, and—at least one group selected from R1, R2 and R3 has the general formula E-A-; and ii) at least one complex of a monovalent metal having formula (II) wherein—M+ is a positive metal ion bearing a single elementary charge, and each of A1, A2, A3 and A4 is independently selected from H, substituted or unsubstituted C6-C20 aryl and substituted or unsubstituted C2-C20 heteroaryl, wherein a heteroaryl ring of at least 5 ring-forming atoms of the substituted or unsubstituted C2-C20 heteroaryl comprises at least one hetero atom selected from O, S and N.
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- Organic light emitting device
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The present invention relates to an organic light emitting device having improved driving voltage, efficiency and lifetime.
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- 3,5-bis(10-naphthalenyl-anthracen-9-yl)pyridine compounds as hosts for light-emitting devices
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Optionally substituted 3-(10-(aryl)anthracen-9-yl)-5-(10-(aryl)anthracen-9-yl)pyridine compounds may be used as host compounds for devices such as organic light-emitting devices.
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Page/Page column 34; 35
(2018/04/13)
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- BLUE FLUORESCENT HOST MATERIALS, AND ORGANIC THIN FILM AND ORGANIC LIGHT EMITTING DEVICES COMPRISING THE SAME
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The present invention provides an organic compound represented by chemical formula 1, and an organic electroluminescent device comprising the same. The present invention comprises a blue fluorescent host material, thereby providing the organic electroluminescent device having improved driving voltage, light-emitting efficiency, and light-emitting lifespan.COPYRIGHT KIPO 2017
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Paragraph 0151-0156
(2017/06/19)
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- The anthracene derivatives, organic EL material and its manufacturing method (by machine translation)
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PROBLEM TO BE SOLVED: To provide an anthracene derivative in which a specific solubility radical is introduced into an anthracene skeleton, thereby improving solubility, and that is suitable to be used for film production in a solution process, and further to provide an anthracene derivative in which a specific solution radical of the anthracene derivative is desorbed by an external stimulation, and that is as an organic EL material excellent in characteristics.SOLUTION: For instance, anthracene derivatives (HTL1) and (HTL2) are exemplified to be synthesized by reaction formula (A). The anthracene derivative excellent in organic EL characteristics is obtained by the desorption of an ester group by an external stimulation.
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Paragraph 0156-0157
(2017/07/14)
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- A thiadiazole compound, a compound for a light-emitting element, light-emitting element, the light emitting device, the authentication device and electronic device
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PROBLEM TO BE SOLVED: To provide a thiadiazole compound, a compound for light-emitting elements, and a light-emitting element capable of emitting light in the near-infrared region and having high efficiency and long life, and a light-emitting device, an authentication device, and an electronic device having the light-emitting element.SOLUTION: The thiadiazole compound is represented by the following formula (1), wherein Xs each independently represent a hydrogen atom or a functional group, and a ring may be formed by adjacent two or more Xs.
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Paragraph 0140; 154
(2017/07/23)
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- New organic electroluminescent material, preparation method and applications thereof
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The invention relates to a new organic electroluminescent material, a preparation method and applications thereof, and provides a new anthracene derivative, wherein an ether structure is introduced into an anthracene compound to link Y1, Ar1, Ar2 and R1 so as to improve the stereo skill of the compound, adjust the molecular weight of the ligand R1, carry out performance improving and skill improving according to ligand type performance, and provide other advantages. The device prepared by using the new anthracene derivative of the present invention has characteristics of high brightness, excellent heat resistance, long service life, high efficiency, and the like.
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Paragraph 0044; 0045; 0051; 0052
(2016/10/09)
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- ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
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The present invention relates to an organic optoelectric device and a display device comprising the organic optoelectric device. The organic optoelectric device comprises: a positive electrode and a negative electrode facing each other; a luminescent layer located between the positive electrode and the negative electrode and comprising a compound represented by the chemical formula 1; and a hole transport layer located between the positive electrode and the luminescent layer and comprising a compound represented by the chemical formula 2. In the chemical formula 1, X^1, Ar^1, Ar^2, R^1 to R^11, L^1 to L^3, and Ar^3 to Ar^5 are the same as defined in the specification. The present invention is designed to embody an organic optoelectric device with high efficiency and long-life.COPYRIGHT KIPO 2016
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Paragraph 0171; 0174; 0175
(2016/10/09)
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- ORGANIC OPTOELECTRIC DEVICE AND DISPLAY DEVICE
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The present invention relates to an organic photoelectric element which comprises: a positive electrode and a negative electrode facing each other; a light emitting layer which is expressed as chemical formula 1 by being located between the positive electrode and the negative electrode; and a hole transporting layer located between the positive electrode and the light emitting layer and including a compound which is expressed as chemical formula 2. Also, the present invention relates to a display device comprising the organic photoelectric element. In the chemical formula above, X^1, Ar^1, Ar^2, R^1-R^11, L^1-L^3, and Ar^3-Ar^5 are the same as defined in the specification.COPYRIGHT KIPO 2016
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Paragraph 0418; 0419; 0422; 0423
(2016/10/27)
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- Thiadiazole, compound for light-emitting elements, light-emitting element, light-emitting apparatus, authentication apparatus, and electronic device
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The thiadiazole represented by formula (1), when used as a light-emitting material in a light-emitting element, allows the light-emitting element to emit near-infrared light: wherein, in formula (1), each A independently represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryl amino group, or a substituted or unsubstituted triarylamine.
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- Anthracene derivative and organic electroluminescent device including the same
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The present invention discloses an anthracene derivative which can be represented by chemical formula 1. (The definitions of the respective substituents chemical formula 1 are given in the detailed description of the invention.)
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Paragraph 0117; 0118; 0121; 0122
(2016/10/10)
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- Anthracene-based compounds and Organic light emitting device comprising the same
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Disclosed are an anthracene-based compound and an organic light emitting device. The anthracene-based compound has high thermal stability and excellent optical properties and chemical properties to provide high quality blue organic light emitting device.
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Paragraph 0266; 0267; 0280; 0281
(2016/10/27)
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- Anthracene-based compounds and Organic light-emitting device comprising the same
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Disclosed are an anthracene-based compound and an organic light emitting device. The anthracene-based compound has high thermal stability and excellent optical properties and chemical properties to provide high quality blue organic light emitting device. Disclosed in another embodiment of the present invention is an organic light emitting device which includes a first electrode; a second electrode facing the first electrode; and an organic layer interposed between the first electrode and the second electrode, and including a light emitting layer, wherein the organic layer includes one or more kind among the anthracene-based compounds.COPYRIGHT KIPO 2015
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Paragraph 0299; 0300; 0307; 0308
(2016/10/10)
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- Organic light-emitting diode including aryl substituted antracene derivatives
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The present invention, in regards to an organic light emitting diode comprising a luminous layer and an electron transport layer between a first electrode and a second electrode, relates to an organic light emitting diode which includes one or more anthracene derivatives selected from compounds represented by chemical formula A below in the electron transport layer, and which includes one or more anthracene derivatives selected from compounds represented by chemical formula B below in the luminous layer. L_a, L_b, A, Y and m below are defined in the detailed description of the present invention.
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Paragraph 0399; 0404; 405
(2020/04/01)
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- Organic light-emitting diode including aryl substituted antracene derivatives
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The present invention, in regards to an organic light-emitting diode comprising a luminous layer and an electron transport layer between a first electrode and a second electrode, relates to an organic light emitting diode which includes one or more anthracene derivatives selected from compounds represented by chemical formula A below in the electron transport layer, and which includes one or more anthracene derivatives selected from compounds represented by chemical formula B below in the luminous layer. L_1, L_2, Y, Z, m, and m′ below are defined in the detailed description of the present invention.
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Paragraph 0243; 0248; 0249
(2020/04/28)
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- NEW NITROGEN-CONTAINING HETEROCYCLIC COMPOUNDS AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention refers to novel nitrogenous heterocyclic and optical material using it organic electronic device with high. The present invention according to organic electronic devices efficiency, excellent characteristics such as voltage and life blades, presenting a. (by machine translation)
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Paragraph 0192-0194
(2016/10/07)
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- Asymmetric naphthalenylcarbazole derivatives, the organic thin layer material and the organic electroluminescent element employing the same
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The present invention refers to a formula 1 asymmetric [...] derivatives and using the same provides organic electroluminescent element and the like. [Formula 1] An organic electroluminescent element of said formula 1 [...] derivatives available formed on organic thin film, a light emitting layer, in particular conductive layer is used as the host material when the organic electroluminescent device, as a material of a luminescent layer in a wavelength region of blue efficiency characteristics not only present exhibits moisture-absorbing properties.
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Paragraph 0090-0093
(2016/10/24)
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- Novel anthracene derivatives and organic electroluminescent device using the same
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The present invention relates to a novel asymmetric anthracene derivative and an organic light-emitting diode including the same in a light-emitting layer. More specifically, the anthracene derivative, according to the present invention, is a highly-twisted asymmetric anthracene compound.
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Paragraph 0063-0064; 0071-0072
(2016/12/01)
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- INDENOTRIPHENYLENE DERIVATIVES AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
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The present invention discloses a new indenotriphenylene derivatives and organic light emitting device using the derivatives. The organic light emitting device employing new indenotriphenylene derivatives as host material can lower driving voltage, prolong half-lifetime, increasing efficiency. The new indenotriphenylene derivatives are represented by the following formula (A): Wherein A1, A2 are substituted or unsubstituted fused ring hydrocarbon units with one to five rings. Preferably A1, A2 are phenyl group, naphthyl group, anthracenyl group, pyrenyl group, chrysenyl group. Perylenyl group. R1 to R4 are identical or different. R1 to R4 are independently selected from the group consisting of a hydrogen atom, a halide, alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 6 to 30 carbon atoms. X is selected from carbon atom or nitrogen atom.
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Paragraph 0035-0036
(2014/05/20)
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- Extremely deep blue and highly efficient non-doped organic light emitting diodes using an asymmetric anthracene derivative with a xylene unit
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A new highly twisted asymmetric anthracene derivative with naphthalene and triphenylamine substituted xylene was synthesized as an extremely deep blue emitting material. A non-doped device using the new asymmetric blue emitter displays a maximum EQE of 4.62% with CIE color coordinates of (0.154, 0.049). The Royal Society of Chemistry 2013.
- Kim, Ran,Lee, Sunghun,Kim, Kwon-Hyeon,Lee, Yun-Ji,Kwon, Soon-Ki,Kim, Jang-Joo,Kim, Yun-Hi
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p. 4664 - 4666
(2013/06/26)
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- ELECTROACTIVE MATERIALS
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There is provided an electroactive material having Formula I wherein: Q is the same or different at each occurrence and can be O, S, Se, Te, NR, SO, SO2, P, PO, PO2, and SiR2;R is the same or different at each occurrence a
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Page/Page column 20
(2013/02/28)
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- Spirobenzofluorene linked anthracene derivatives: Synthesis and application in blue fluorescent host materials
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Blue light-emitting anthracene-based host materials with a spiro[benzo[c]fluorene-7,9′-fluorene] core, 5-(10-(naphthalen-2-yl) anthracen-9-yl)spiro[benzo[c]fluorene-7,9′-fluorene] (NA-SBFF) and 5-(10-(4-(naphthalen-1-yl)phenyl)anthracen-9-yl)spiro[benzo[c]fluorene-7, 9′-fluorene] (NPA-SBFF), were designed and synthesized via two-step Suzuki coupling reactions. Introduction of a spiro group into the structure of the anthracene moieties lead to a reduction in crystallization tendency, and a high glass transition temperature was observed. Typical blue fluorescent organic light emitting diodes with the configuration of ITO/N,N′-diphenyl-N, N′-bis[4-(phenyl-m-tolyl-amino)phenyl]biphenyl-4,4′-diamine (DNTPD)/N,N′-di(1-naphthyl)-N,N′-diphenylbenzidine (NPB)/HOST: Dopant/tris(8-hydroxyquinoline)aluminum (Alq3)/LiF were developed using SBFF-type anthracene derivatives as a host material and N,N,N′,N′-tetraphenylspiro[benzo[c]fluorene-7,9′-fluorene]-5, 9-diamine (TPA-SBFF) as a dopant material. A device obtained from NA-SBFF doped with TPA-SBFF showed blue color purity of 0.146 and 0.167, a luminance efficiency of 8.65 cd/A, and an external quantum efficiency >6.01% at 8.0 V.
- Seo, Jeang-A.,Lee, Chil-Won,Gong, Myoung-Seon
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p. 211 - 219
(2012/11/13)
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- High efficient and high color pure blue light emitting materials: New asymmetrically highly twisted host and guest based on anthracene
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New asymmetrically highly twisted anthracene derivatives serve as a matched host and guest material in high efficiency blue OLEDs. 2-(2- Methylnaphtathalene-1-yl)-9,10-di(naphthalene-2-yl)anthracene and N-(4-(10-naphthalene-2-yl)anthracene-9-yl)phenyl-N-p
- Kang, Il,Back, Jang-Yeol,Kim, Ran,Kim, Yun-Hi,Kwon, Soon-Ki
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experimental part
p. 588 - 595
(2012/02/01)
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- THIADIAZOLE-BASED COMPOUND, LIGHT EMITTING ELEMENT COMPOUND, LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AUTHENTICATION DEVICE, AND ELECTRONIC DEVICE
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Provided is a thiadiazole compound with high efficiency and long life which emits light in a near-infrared region and represented by Formula (I). [In the Formula (I), As each independently represent an aryl group which may have a substituent or a diarylamino group.]
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Page/Page column 49
(2012/11/07)
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- LUMINESCENT COMPOUNDS AND ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to organic electroluminescent compounds and organic electroluminescent devices employing the same. More specifically, the invention relates to organic electroluminescent compounds containing an anthracenyl group or an aryl group having an anthracenyl substituent m the aryl ring of fluorene or indenofluorene, as a blue electroluminescent material in an organic electroluminescent layer. The electroluminescent compounds according to the invention exhibit high luminous efficiency and excellent life property, so that an OLED device having very good operation lifetime can be prepared therefrom.
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- NOVEL NITROGEN-CONTAINING HETEROCYCLIC COMPOUND AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention provides a novel nitrogen-containing heterocyclic derivative and an organic electronic device using the same. The organic electronic device according to the present invention has excellent properties in terms of efficiency, driving voltage, and a life span.
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Page/Page column 65
(2011/05/05)
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- ORGANIC ELECTROLUMINESCENCE DEVICE AND ANTHRACENE DERIVATIVE
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An anthracene derivative having a specific asymmetric structure is provided. The asymmetric anthracenes are useful in an organic electroluminescence device and exhibit efficient light emission and a long performance lifetime.
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Page/Page column 23
(2011/02/26)
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- Deep-blue and white organic light-emitting diodes based on novel fluorene-cored derivatives with naphthylanthracene endcaps
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Novel fluorene based deep-blue-emitting molecules with naphthylanthracene endcaps, namely 2,7-di(10-naphthylanthracene-9-yl)-9,9-dioctylfluorene (NAF1) and 7,7′-di(10-naphthylanthracene-9-yl)-9,9,9′,9′-tetraoctyl- 2,2′-bifluorene (NAF2), are synthesized by a Suzuki cross-coupling reaction. These materials exhibit excellent thermal and amorphous stabilities, and high fluorescence quantum yield of over 70%. Organic light-emitting devices (OLEDs) using NAF1 or NAF2 as non-doped emitter exhibit bright deep blue electroluminescence with CIE coordinates of (0.15, 0.13) for NAF1, (0.16, 0.13) for NAF2. A maximum power efficiency of 2.2 lm W-1 (4.04 cd A -1, 4.04%) is achieved for NAF1, which is among the highest values ever reported for deep-blue fluorescent OLEDs. A further improved coordinates of (0.15, 0.09) with efficiencies of 3.56 cd A-1 and 2.10 lm W -1 are achieved for NAF1 upon tuning device thickness, which are also among the best data for non-doped deep blue fluorescent OLEDs with a CIE coordinate of y -1 (7.66 cd A -1), a brightness of 12090 cd m-2, and a standard white light coordinates of (0.33, 0.33). This performance is among the best results ever reported for two-emitting-component white OLEDs based on fluorescent materials.
- Zhang, Ting,Liu, Di,Wang, Qian,Wang, Renjie,Ren, Huicai,Li, Jiuyan
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scheme or table
p. 12969 - 12976
(2011/12/21)
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- Anthrancene derivative compound and organic light-emitting device including the same
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Provided is an anthracene derivative compound represented by Formula 1 below and an organic light-emitting device using the same: wherein Ar1, Ar2, R1, R2, R′, m, n, j, k, and X are as defined in the specification. The anthracene derivative compound is advantageously used in the production of an organic light-emitting device with better driving voltage, efficiency, and color purity.
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Page/Page column 19-20
(2010/06/11)
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- CHARGE TRANSPORT MATERIALS FOR LUMINESCENT APPLICATIONS
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There is provided a charge transport compound having Formula I: wherein: R1 through R5 are the same or different at each occurrence and can be hydrogen, alkyl, aryl, halogen, hydroxyl, aryloxy, alkoxy, alkenyl, alkynyl, amino, alkylt
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Page/Page column 7
(2010/10/03)
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- Efficient blue lighting materials based on truxene-cored anthracene derivatives for electroluminescent devices
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A new series of anthracene derivatives containing a truxene moiety as the core have been synthesized and characterized. They emit in the blue region with excellent solution fluorescence quantum yields and possess high thermal decomposition temperature (Td>458 °C). Typical electroluminescence performance was demonstrated by 2-[10-(4-(1-napthenyl) phenyl)anthracene-9-yl]-5,5′,10,10′,15,15′-hexaethyltruxene (NPAT) as the blue lighting material in the OLED with structure of ITO/CFx/NPAT/TPBI or Alq3/LiF/Al, where TPBI and Alq3 are 1,3,5-tri(N-phenylbenzimidazol-2-yl)-benzene and tris(8-hydroxyquinolinato) aluminum, respectively. Additionally, the effects of the different thickness of the different electron transporting layers on the device performance were investigated.
- Huang, Jinhai,Xu, Bin,Su, Jian-Hua,Chen, Chin H.,Tian, He
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scheme or table
p. 7577 - 7582
(2010/12/18)
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- METHOD FOR SYNTHESIZING ANTHRACENE DERIVATIVE AND ANTHRACENE DERIVATIVE, LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, ELECTRONIC DEVICE
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It is an object to provide a novel method for synthesizing an anthracene derivative with the small number of steps. It is another object to provide a novel anthracene derivative. It is further another object to provide a light-emitting element, a light-emitting device, and an electronic device, each using the anthracene derivative. A method for synthesizing an anthracene derivative represented by a general formula (1) is provided by coupling a 9-arylanthracene derivative having an active site at a 10-position with a 9-arylcarbazole derivative having an active site in an aryl group using metal, a metal compound, or a metal catalyst.
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Page/Page column 102-103
(2010/11/30)
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- A NOVEL ANTHRACENE TYPED COMPOUND AND THE ORGANIC ELECTROLUMINESCENCE DISPLAY DEVICE USING THE SAME
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The present invention relates to an anthracene compound and an organic electroluminescent display device using the same. Particularly, the present invention relates to an anthracene compound which has good blue light emitting property, transports holes and electrons efficiently to enable an organic electroluminescent display device to have a low voltage, high brightness and long lifetime, and an organic electroluminescent display device using the same.
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Page/Page column 57-58
(2009/01/20)
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- NOVEL ANTHRACENE DERIVATIVE AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention provides a novel anthracene derivative and an organic electronic device using the same. The organic electronic device according to the present invention shows excellent characteristics in efficiency, drive voltage, and life time.
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Page/Page column 52
(2010/11/28)
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- Synthesis and photophysical processes of 9-bromo-10-naphthalen-2-yl-anthracene
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A novel luminescent compound, 9-bromo-10-naphthalen-2-yl-anthracene (BNA) is synthesized by Suzuki Cross-coupling reaction of 9-bromo-anthracene and naphthalene-2-boronic acid. The structure is characterized by 1H NMR, IR and UV-vis spectroscopy. The photophysical processes of 9-bromo-10-naphthalen-2-yl-anthracene have been carefully investigated by UV-vis absorption and fluorescence spectra. The results show that the compound emits blue and blue-violet light. The emission spectra exhibit obvious solvent effect. With the difference in polarity of solvents, The emission spectra is not only slightly blue shift with the increase of the solvent polarity but also change on the intensity of fluorescence at room temperature .The light emitting can be quenched by electron donor, N,N-dimethylaniline (DMA). On adding gradually DMA into the solution of BNA, the emission intensities of fluorescence are gradually decreased. The quenching effect follows the Stern-Volmer equation.
- Guo, Zhiqiang,Jin, Shuo,Liu, Bo
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p. 672 - 675
(2007/10/03)
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- NOVEL IMIDAZOQUINAZOLINE DERIVATIVE, PROCESS FOR PREPARING THE SAME, AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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The present invention relates to a novel imidazoquinazoline derivative, a process for preparing the same, and an organic electronic device using the same. The imidazoquinazoline derivative according to the present invention serves as hole injecting, hole transporting, electron injecting, electron transporting, or a light emitting material in an organic electronic device including an organic light emitting device, and the device according to the present invention exhibits excellent characteristics in efficiency, operating voltage, and stability.
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Page/Page column 25-26
(2010/11/27)
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- Method for producing aromatic compound and aromatic compound
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A process for producing an aromatic compound which can effectively decrease the contents of halogen elements in the aromatic compound and an aromatic compound which is produced in accordance with the process and useful as the material for obtaining an organic electroluminescence device having a long life are provided. The process for producing an aromatic compound comprises bringing an aromatic compound which is produced via an intermediate compound having halogen elements and has contents of halogen elements of 10 to 1,000 ppm by mass into reaction with a dehalogenating agent to decrease the contents of halogen elements to 10 ppm by mass or smaller, and an aromatic compound which is produced in accordance with the process.
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Page/Page column 13
(2008/06/13)
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- Light-emitting material for organic electroluminescent device, organic electroluminescent device using same, and material for organic electroluminescent device
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Disclosed is a light-emitting material for organic electroluminescent (EL) devices which is composed of an asymmetric anthracene derivative of a specific structure. Also disclosed are a material for organic EL devices and an organic EL device wherein an organic thin film layer composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. At least one layer composed of the organic thin film layer contains the material for organic EL devices by itself or as a component of a mixture. Consequently, the organic EL device has a high efficiency and a long life. Also disclosed are a light-emitting material for organic EL devices and material for organic devices which enable to realize such an organic EL device.
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- NOVEL AROMATIC COMPOUND AND ORGANIC ELECTROLUMINESCNET ELEMENT CONTAINING THE SAME
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A novel aromatic compound having an anthracene skeleton structure and an asymmetric molecular structure; and an organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer containing
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- Synthesis of unsymmetric anthracene compounds
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A process for forming an unsymmetric anthracene compound comprises a first step of forming a 9-perfluoroalkylsulfonate derivative of anthrone by reacting the anthrone with a perfluoroalkyl sulfonating agent, followed by a second step of contacting the reaction product with an aryl or heteroaryl boronic acid, ester or anhydride, and a palladium catalyst for a period of time sufficient to form an unsymmetric anthracene compound having at least one 9-position aromatic substituent.
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(2010/02/14)
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