Abstract: The present invention relates to the improvement of organic electroluminescent devices, in particular blue-emitting devices, by using compounds of the formula (1) as dopants in the emitting layer.

Abstract: This application relates in part to an organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and an organic layer(s) including a light emitting layer, in which the organic layer(s) contains a compound represented by the following formula (1), in which R1 to R8 are each hydrogen or a substituent, at least one of R1 to R4 and at least one of R5 to R8 are each a substituent represented by the formula (2); R9 to R12, Z1 to Z4, Ar1, Ar2, and L1 are as defined herein.

Abstract: The present invention provides an organic light emitting diode comprising a first electrode, a second electrode and an organic material layer of one or more layers disposed between the first electrode and the second electrode, in which the organic material layer comprises a light emitting layer, an organic material layer comprising the compound represented by Formula 1 is comprised between the first electrode and the light emitting layer, and the light emitting layer comprises a host comprising the compound represented by Formula 1 and a dopant.

Abstract: An amine derivative represented by the following general formula (1) and exhibiting a temperature difference of 30° C. or more as defined by the difference of [decomposition temperature (° C.) minus sublimation temperature (° C.)]: wherein R1 and R2 independently represent a substituted or unsubstituted C6-40 aryl or C5-40 heteroaryl group; and R3 and R4 independently represent a hydrogen atom, a straight-chain, branched or cyclic C1-18 alkyl or C1-18 alkoxy group, or a substituted or unsubstituted C6-40 aryl or C5-40 heteroaryl group, provided that R3 and R4 may form together a cyclic hydrocarbon group. The amine derivative is useful as an organic electroluminescent material.

Abstract: The present invention relates to a novel stable benzo[h]hexaphene compound and an organic light-emitting device including the compound. The present invention provides a benzo[h]hexaphene shown in Claim 1.

Abstract: A heterocyclic compound represented by Formula 1A and an organic light-emitting device including the heterocyclic compound: at least one of R1 to R13 is a group represented by Formula 1B below: wherein R1 to R15, Ar1, Ar2, A, B, a, and b are defined as in the specification. The organic light-emitting device may include an organic layer containing the heterocyclic compound, and thus may have a low driving voltage, a high-emission efficiency, and long lifespan characteristics.

Abstract: The invention provides a process for the synthesis of a polycarbonate, the process comprising the step of reacting carbon dioxide with at least one epoxide in the presence of a catalyst of formula (I) and a chain transfer agent. The invention also provides a polymerisation system for the copolymerisation of carbon dioxide and at least one epoxide comprising a catalyst of formula (I) and a chain transfer agent, polycarbonates produced by the inventive process, a block copolymer comprising a polycarbonate produced by the inventive process and a method of producing the same. The invention also relates to novel catalysts of formula (III).

Abstract: The present invention provides organic compounds which are indenobenzo[k]fluoranthene derivatives represented by the following general formula (1): In general formula (1), R1 to R14 are each independently selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amino group, an aryl group, and a heterocyclic group.

Abstract: It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms.

Abstract: A polymer compound having a repeating unit of the following formula (1): (wherein, R1 represents a substituent, Q1 and Q2 represent a group containing a benzocyclobutane structure, a represents an integer of 0 to 3. When there exist a plurality of R1s, these may be the same or different).

Abstract: The present invention discloses a novel ditriphenylene derivative is represented by the following formula (I), the organic EL device employing the ditriphenylene derivative as host material or dopant material of emitting layer can lower driving voltage, prolong half-life time and increase the efficiency. Wherein m, n represent an integer of 0 to 10. X is a divalent bridge selected from the atom or group consisting from O, S, C(R3)(R4), NR5, Si(R6)(R7). Ar1, Ar2, R1 to R7 are substituents and the same definition as described in the present invention.

Abstract: The present disclosure relates to a process for the synthesis of a conducting polymer comprising a benzothiadiazole acceptor and indeno-fluorene donor of formula [IV].

Abstract: The present invention relates to mixtures of organic materials, to the use of these mixtures in organic electroluminescent devices, and to organic electroluminescent devices comprising these mixtures.

Abstract: The present invention provides green and red conversion films capable of keeping a sufficient intensity of converted light over a long period, and a multicolor emission organic EL device which exhibits light-emitting properties stably over a long period. The present invention includes a pendant-type polymeric compound characterized in that the pendant-type polymeric compound contains at least one repeating unit represented by a general formula (1) and at least one repeating unit represented by a general formula (2), (6) or (7), wherein n/(m+n)=1/100 to 100/100 provided that the molar ratio of (1):(2), (6) or (7) is m:n.

Abstract: A novel photochromic compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability. The present invention is a chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as the basic skeleton in which a hetero ring having two hetero atoms including at least one sulfur atom is directly bonded to the 6-position and the 7-position of the indeno(2,1-f)naphtho(1,2-b)pyran structure via the hetero atom like the compound represented by the following formula (18).

Abstract: An organic light emitting device is provided. The device includes an anode and a cathode. A first organic layer is disposed between the anode and the cathode. The first organic layer is an emissive layer that includes a first organic emitting material. The device also includes a second organic layer disposed between the anode and the first organic layer. The second organic layer is a non-emissive layer. The second organic layer includes an organic small molecule hole transport material having a concentration of 50 to 99 wt %, and an organic small molecule electron transport material having a concentration of 0.1 to 5 wt %. Other materials may be present.

Abstract: A fluorene copolymer, method for preparation thereof, and use thereof are provided. Said fluorene copolymer comprises copolymer represented by formula (I), wherein R1-R2, R5-R8 are selected from H or C1-C20 alkyl, R3-R4 are selected from H, C1-C20 alkyl, C1-C20 alkoxyl, phenyl or phenoxyl, x+y=1, x?0, y?0; n is an integer of 1 to 200, Ar1 is thiophene unit-containing group. On account of thiophene unit and thienopyrazine unit, the fluorene copolymer has wide spectrum response range and favorable stability.

Abstract: A problem of the invention is to provide an organic EL device having a high efficiency, a low driving voltage and a long life, by combining various materials for organic EL device, which are excellent in an injection or transportation performance of holes or electrons, and in stability and durability in a thin film, so as to enable the respective materials to effectively reveal their characteristics. The invention relates to an organic electroluminescent device including at least an anode electrode, a hole-injecting layer, a hole-transporting layer, an emitting layer, an electron-transporting layer and a cathode electrode in this order, in which the hole-injecting layer contains an arylamine compound having, in its molecule, a structure in which three or more triphenylamine structures are connected through a single bond or a hetero atom-free divalent group; and the hole-transporting layer contains an arylamine compound having two triphenylamine structures in its molecule.

Abstract: A pyrene-based compound and an organic light-emitting diode including the pyrene-based compound are provided. The pyrene-based compound of Formula 1 above may emit blue light having high color purity. For example, an organic light-emitting diode including the pyrene-based compounds of the invention may emit blue light having a y coordinate with a color purity of 0.1 or less, for example, a color purity of 0.09 or less, which is near to the NTSC or sRGB specification. A thin film including the pyrene-based compounds of the invention may be highly amorphous, and thus may have improved electrical stability. Accordingly, an organic light-emitting diode including the pyrene-based compounds of the invention may have improved lifetime characteristics.

Abstract: The present invention discloses a novel material is represented by the following formula (A), the organic EL device employing the material as blue emitting layer can lower driving voltage, prolong half-lifetime and increase the efficiency. Wherein m represent an integer of 0 to 4, R1 and R2 are identical or different. R1 and R2 are independently selected from the group consisting of a hydrogen atom, 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. R3 and R4 are identical or different, R3 and R4 are independently selected from the group consisting of hydrogen atom, a halide, a substituted or unsubstituted arylamine, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.

Abstract: A specified indenopyrene compound containing a disubstituted amino group substituted with a group having a carbon number of from 1 to 40, which is a useful indenopyrene compound as an organic electronics material, and in particular, an indenopyrene compound which when used for organic thin film solar cells, displays a photoelectric conversion characteristic with high efficiency, is provided.

Abstract: An organic electroluminescent element that uses a compound expressed by the following general formula emits dark blue light and exhibits little change in chromaticity during brightness modulation. (n1 is an integer from 0 to 8; the R1 [groups] are each independently a substituent substituted for a hydrogen atom of the pyrene skeleton; X is CRaRb (Ra and Rb are each independently a hydrogen atom or a substituent), O, S, or SiRdRe (Rd and Re are each independently a hydrogen atom or a substituent); and A1 to A4 represent each independently either N or CRf (Rf represents a hydrogen atom or a substituent, and two adjacent Rf [groups] may jointly form a saturated or unsaturated ring, but no more than two rings may be formed jointly by two or more of the Rf [groups]).

Abstract: An anthracene derivative represented by the general formula (G1) is provided. The anthracene derivative represented by the general formula (G1) is a novel anthracene derivative having a wide band gap. Further, the anthracene derivative has a large energy gap and can be very suitably used as a material for a light-emitting element which exhibits blue light emission.

Abstract: Organic compounds and organic electroluminescent devices employing the same are provided.

Abstract: An amine-based compound and an organic light-emitting diode including the amine-based compound are provided. The amine-based compound may be used between a pair of electrodes of an organic light-emitting diode. For example, the amine-based compound may be used in an emission layer and/or between the emission layer and an anode (for example, in a hole injection layer, a hole transport layer, a functional layer having a hole injection ability and a hole transport ability). Accordingly, an organic light-emitting diode including a first electrode, a second electrode facing the first electrode, and an organic layer that is interposed between the first electrode and the second electrode, and includes the amine-based compound is provided.

Abstract: The present invention relates to crosslinkable compounds, to the crosslinked compounds obtained from these compounds, and to processes for the preparation thereof. The invention is furthermore directed to the use of these compounds in electronic devices and to the corresponding electronic devices themselves.

Abstract: An aromatic amine derivative with a special structure obtained by bonding a diphenylamino group having a substituent to a substituted pyrene structure; and a process for producing the aromatic amine derivative. An organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrodes consisting of an anode and a cathode, wherein at least one of the organic thin film layer comprises the aromatic amine derivative singly or as its mixture component. An organic electroluminescence device having a prolonged lifetime and emits blue light with an enhanced efficiency of light emission and an aromatic amine derivative realizing the device are provided.

Abstract: The chromene compound is represented by the following formula (I), wherein R3 at the 11-position is a sulfur-containing substituent selected from the group consisting of thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group, heteroarylthio group, sulfonyl group and sulfinyl group, R1 and R2 at the 6-position and the 7-position are a combination of an aryl group or a heteroaryl group and an electron donating group having a Hammett constant ?p of ?0.1 or less, or R1 and/or R2 is sulfur-containing substituent selected from thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group.

Abstract: The present invention relates to substituted benzo[c]phenanthrene derivatives and to the production and to the use thereof in electronic devices, and to the electronic devices themselves. The present invention relates in particular to benzo[c]phenanthrene derivatives substituted with at least one aromatic unit or at least one diarylamino unit.

Abstract: An aromatic amine derivative having a specific structure. An organic electroluminescence device which is composed of one or more organic thin film layers sandwiched between a cathode and an anode, wherein at least one of the organic thin film layers, especially a hole transporting layer, contains the aromatic amine derivative. The aromatic amine derivative has at least one substituted or unsubstituted dibenzofuran skeleton and at least one substituted or unsubstituted terphenylene skeleton. Because the molecules in the aromatic amine derivate hardly crystallize, organic electroluminescence devices improving their production yield and having prolonged lifetime are provided.

Abstract: A photochromic chromene compound having an indeno(2,1-f)naphtho(1,2-b)pyran structure as its basic skeleton, an aryl group or a heteroaryl group at the 6-position carbon atom of the structure and an electron donor group having a Hammett constant ?p of not more than ?0.1 at the 7-position carbon atom.

Abstract: A heterocyclic compound represented by Formula 1 below and an organic light-emitting diode (OLED) including the same: wherein R1 through R12, Ar1, Ar2, A, B, a, and b are the same as defined above. An OLED including an organic layer including the heterocyclic compound has low driving voltage, high luminous efficiency, and a long lifetime.

Abstract: The present invention relates to polymers which contain certain triarylamine units of the Formula (1) The materials according to the invention exhibit a longer lifetime than materials in accordance with the prior art and therefore more suitable for use in polymeric organic light-emitting diodes.

Abstract: The present invention provides an organic light emitting device comprising a first electrode, at least one organic layer and a second electrode, laminated successively, in which at least one layer of the organic layer has a polycyclic aromatic hydrocarbon as a core and comprises at least one of a derivative in which a substituted or unsubstituted C2-30 cycloalkane, or a substituted or unsubstituted C5-50 polycycloalkane is directly fused to the core or fused to a substituent of the core: and a new organic compound usable in the organic light emitting device. Furthermore, the present invention provides a charge carrier extracting, injecting or transporting material which has a polycyclic aromatic hydrocarbon as a core and comprises a derivative in which a substituted or unsubstituted C2-30 cycloalkane, or a substituted or unsubstituted C5-50 polycycloalkane is directly fused to the core or fused to a substituent of the core.

Abstract: The present invention relates to a novel heterocyclic derivative and an organic light emitting device using the compound, and the heterocyclic derivative may largely improve a life span, efficiency, electrochemical stability and thermal stability of the organic light emitting device.

Abstract: A compound having Formula I, Formula II, or Formula III: Ar1 may independently be phenylene, substituted phenylene, naphthylene, or substituted naphthylene. Ar2 is the same or different at each occurrence and is an aryl group. M is the same or different at each occurrence and is a conjugated moiety. T1 and T2 are independently the same or different at each occurrence and are conjugated moieties which are connected in a non-planar configuration.

Abstract: Novel materials are provided, having a single phenyl or a chain of phenyls where there is a nitrogen atom on each end of the single phenyl or chain of phenyls. The nitrogen atom may be further substituted with particular thiophene, benzothiophene, and triphenylene groups. Organic light-emitting devices are also provided, where the novel materials are used as a hole transport material in the device. Combinations of the hole transport material with specific host materials are also provided.

Abstract: An organic light-emitting medium including a pyrene derivative represented by the following formula (1) and a phenyl-substituted anthracene derivative represented by the following formula (2): wherein Ar1 to Ar4 are independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 20 ring atoms.

Abstract: In OLEDs, improved efficiency is obtained by using compounds of formula [Ar](CH?CH—R1)n wherein n is an integer from 1 to 4; [Ar] is a polycyclic aromatic or heteroaromatic scaffold optionally substituted with one or more alkyl or alkoxy groups; and R1 is a 5-membered heteroaryl group optionally substituted with methyl, methoxy, aryl or heteroaryl, or is phenyl or naphthyl optionally substituted with methyl, methoxy, trifluoromethyl or cyano or is biphenyl or substituted biphenyl. The compounds are believed to be novel and can be made by condensing a compound of formula wherein [Ar] and n are as defined above with a compound of formula [Ar](CH3)nR1CHO in the presence of an acid catalyst e.g. an anhydride of an organic acid.

Abstract: A chromene compound which develops a color of a neutral tint and has high color optical density, high fading speed and excellent durability and a photochromic curable composition comprising the chromene compound and polymerizable monomers. The chromene compound is represented by the following formula (1). (wherein R1 is an aryl group or heteroaryl group, and R2 is a sulfur-containing substituent selected from the group consisting of thiol group, alkylthio group, alkoxyalkylthio group, haloalkylthio group, cycloalkylthio group, arylthio group and heteroarylthio group.

Abstract: Embodiments of the invention are directed to a condensed-cyclic compound represented by Formula 1, and to an organic light-emitting device including the condensed-cyclic compound. The organic light-emitting device may include an organic layer containing the condensed-cyclic compound.

Abstract: An object of the present invention is to provide an organic electronic material that can be easily formed into a multilayer structure. A further object of the present invention is to provide an organic electronic device and an organic EL device that exhibit a better emission efficiency and a better emission lifetime than heretofore achieved. In order to achieve these objects, an organic electronic material is provided, the material includes a polymer or oligomer that has at least one polymerizable substituent and a hole-transporting repeat unit.

Abstract: Embodiments of the present invention are directed to a compound represented by Formula 1, and to an organic light-emitting device including the compound.

Abstract: Provided are a novel aromatic amine derivative having an asymmetric structure and an organic electroluminescence device in which, an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, at least one layer in the above organic thin film layer contains the aromatic amine derivative described above in the form of a single component or a mixed component, whereby molecules are less liable to be crystallized; a yield in producing the organic electroluminescence device is enhanced; and a lifetime is extended.

Abstract: Provided is an organic light-emitting device having an optical output with high luminance and high color purity with extremely high efficiency. The organic light-emitting device includes an organic layer between the anode and the cathode, in which one of the anode and the cathode is a transparent electrode or a semi-transparent electrode and at least one layer of the organic layer contains at least one kind of indenopyrene compound having a specific structure.

Abstract: Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at leas one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.

Abstract: An anthracene derivative represented by the general formula (G1) is provided. The anthracene derivative represented by the general formula (G1) is a novel anthracene derivative having a wide band gap. Further, the anthracene derivative has a large energy gap and can be very suitably used as a material for a light-emitting element which exhibits blue light emission.

Abstract: There is provided an electroactive composition including: a deuterated first host material and an electroluminescent dopant material. The first host is a compound having Formula I: The compound of Formula I is deuterated. In Formula I: Ar1 to Ar4 are the same or different and are aryl; Q is a multivalent aryl group or where T is (CR?)a, SiR2, S, SO2, PR, PO, PO2, BR, or R; R is the same or different at each occurrence and is an alkyl group or an ary group; R? is the same or different at each occurrence and is selected H, D, or alkyl; a is an integer from 1-6; and m is an integer from 0-6.

Abstract: The present invention provides an aromatic amine derivative having a specific structure including a substituted diphenylamino group attached to a naphthalene structure. This aromatic amine derivative can realize an organic electroluminescent element having high emission luminance and luminous efficiency and having a prolonged lifetime. The organic electroluminescent element includes an organic thin film layer provided between a cathode and an anode. The organic thin film layer has a single layer or multilayer structure including at least a light emitting layer. At least one layer in the organic thin film layer contains the aromatic amine derivative either solely or as a component of a mixture.

Abstract: Embodiments of the present disclosure are directed to a compound represented by Formula 1, and to organic light-emitting diodes including the compound.