Abstract: There is provided a novel organic compound represented by following general formula [I]and that has an excellent luminescent hue and that can produce high efficiency, high-intensity, and long-life light output, and an organic light-emitting device containing the novel organic compound, wherein X1 to X3 independently denote a hydrogen atom, an alkyl group, or an aryl group.

Abstract: To provide a compound excellent in light emitting properties and an organic light emitting device having the compound.

Abstract: There are provided a novel organic compound that has an excellent luminescent hue and that can produce high-efficiency, high-intensity, and long-life light output, and an organic light-emitting device containing the novel organic compound. There are provided 12,12-dimethyl-12H-benzo[5,6]-s-indaceno[1,2,3-cd]pyrene having a substituent at a particular position, which can emit green light with high color purity, and an organic light-emitting device containing this compound. The substituent at a particular position is selected from a hydrogen atom, substituted and unsubstituted alkyl groups, and substituted and unsubstituted aryl groups.

Abstract: Aspects of the present invention provide a blue organic light-emitting device having a continuous operation lifetime. An organic light-emitting device includes a light-emitting layer containing a dopant having the ability to trap electrons or holes, and a hole-blocking layer or electron-blocking layer, in which the difference between the LUMO of the dopant and the LUMO of a host material, the size relationship between the HOMO of the host material and the HOMO of the dopant, and the difference between the T1 of the host material and the T1 of the hole-blocking layer or between the T1 of the host material and the T1 of the electron-blocking layer, are specified.

Abstract: A fused polycyclic compounds is represented by the general formula (I): wherein X1 to X18 each represent, independently of one another, a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.

Abstract: Provided is a novel dibenzo[a,c]anthracene compound having substituents, which can be used in an organic light emitting device.

Abstract: There is provided a benzo[a]fluoranthene compound represented by the formula (I): wherein: at least one R11 to R22 represents Rm represented by the formula (i): Rm=—Ar1—X1??(i) wherein: Ar1 represents any one of the following groups (i-a) to (i-c): (i-a) a substituted or unsubstituted phenylene group, (i-b) a substituted or unsubstituted monocyclic heterocyclic group, and (i-c) a composite substituent formed of two substituents selected from substituents corresponding to the groups (i-a) and (i-b); and X1 represents a substituted or unsubstituted alkyl group having 2 or more carbon atoms, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group; and R11 to R22 none of which is represented by Rm each represent a hydrogen atom, a halogen atom or the like, and R11 to R22 none of which is represented by Rm may be identical to or different from each other.

Abstract: A novel fluorenylamine compound represented by a general formula below, where R1 to R6 are each independently selected from a hydrogen atom and alkyl groups; R21 to R23 are each independently selected from a hydrogen atom and the alkyl groups; and the alkyl groups are a methyl group, an ethyl group, a n-propyl group, an isopropyl group, a n-butyl group, an isobutyl group, a sec-butyl group, and a tert-butyl group.

Abstract: Provided is an organic light emitting device with enhanced durability during continuous driving. The organic light emitting device includes: an anode, a cathode, and an organic compound layer being placed between the anode and the cathode and including at least a hole transport layer and an emission layer, in which: the emission layer contains a blue light emitting material; the hole transport layer contains a plurality of kinds of organic compounds; and an organic compound having the smallest ionization potential among the organic compounds includes a compound having no absorption spectrum peak in a blue color wavelength region in a radical cation state.

Abstract: Provided is a novel fluorene compound, which is represented by the following general formula (1):

Abstract: Provided is a novel fluorene compound, which is represented by the following general formula (1):

Abstract: There is provided a benzo[a]fluoranthene compound represented by the following general formula (I): wherein at least one of R14, R15, R16, R20, and R21 represents Rn represented by the following general formula (i), and R11 to R22 none of which is represented by Rn each represent a hydrogen atom, a halogen atom or the like, and R11 to R22 none of which is represented by Rn may be identical to or different from one another; wherein R23, R24, R25, R26, and R27 each represent a hydrogen atom, a halogen atom or the like, and R23, R24, R25, R26, and R27 may be identical to or different from one another, provided that, in at least one pair of adjacent substituents out of R23, R24, R25, and R26, the substituents are bonded to each other to form a ring.

Abstract: Provided are a novel benzo[a]fluoranthene compound and an organic light emitting device having extremely good light emitting efficiency, extremely good luminance, and durability. The benzo[a]fluoranthene compound is represented by the following general formula (I): wherein: at least one of R11 to R22 represents Rm represented by the following general formula (i): Rm=—X1—Ar1??(i) wherein X1 represents a substituted or unsubstituted phenylene group, or a substituted or unsubstituted, divalent monocyclic heterocyclic group, and Ar1 represents one of the following groups (a) and (b): (a) a substituted or unsubstituted fused polycyclic group, and (b) a composite substituent formed by combining two or more of a benzene ring, a monocyclic heterocyclic ring, and a fused polycyclic ring, the composite substituent being permitted to have a substituent.

Abstract: To provide a novel fluoranthene derivative and an organic light emitting device having the fluoranthene derivative.

Abstract: To provide an organic light emitting device having high efficiency and high luminance by making a contrivance to suppress the leakage of an electron or of an exciton, an organic light emitting device of the present invention includes two hole transporting layers having tertiary amine compounds different from each other in structure.

Abstract: A fused polycyclic compounds is represented by the general formula (I): wherein X1 to X18 each represent, independently of one another, a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.

Abstract: A fused polycyclic compounds is represented by the general formula (I): wherein X1 to X18 each represent, independently of one another, a hydrogen atom, a halogen atom, a cyano group, a nitro group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.

Abstract: The present invention provides an organic EL device utilizing phosphorescence which can be driven at a low voltage, which realizes high luminance and high efficiency, and which has a long lifetime. The organic EL device of the present invention includes an organic light-emitting layer composed of at least a host material and a dopant, wherein the dopant is a phosphorescent compound containing a halogen atom, and the host material is a linear aromatic compound having no aromatic substituent at a side thereof.

Abstract: Provided are a novel benzo[a]fluoranthene compound and an organic light emitting device having extremely good light emitting efficiency, extremely good luminance, and durability. The benzo[a]fluoranthene compound is represented by the following general formula (I): wherein: at least one of R11 to R22 represents Rm represented by the following general formula (i): Rm=—X1—Ar1??(i) wherein X1 represents a substituted or unsubstituted phenylene group, or a substituted or unsubstituted, divalent monocyclic heterocyclic group, and Ar1 represents one of the following groups (a) and (b): (a) a substituted or unsubstituted fused polycyclic group, and (b) a composite substituent formed by combining two or more of a benzene ring, a monocyclic heterocyclic ring, and a fused polycyclic ring, the composite substituent being permitted to have a substituent.

Abstract: There is provided a benzo[a]fluoranthene compound represented by the formula (I): wherein: at least one R11 to R22 represents Rm represented by the formula (i): Rm=—Ar1—X1??(i) wherein: Ar1 represents any one of the following groups (i-a) to (i-c): (i-a) a substituted or unsubstituted phenylene group, (i-b) a substituted or unsubstituted monocyclic heterocyclic group, and (i-c) a composite substituent formed of two substituents selected from substituents corresponding to the groups (i-a) and (i-b); and X1 represents a substituted or unsubstituted alkyl group having 2 or more carbon atoms, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group; and R11 to R22 none of which is represented by Rm each represent a hydrogen atom, a halogen atom or the like, and R11 to R22 none of which is represented by Rm may be identical to or different from each other.