Abstract: To provide an organic compound of excellent characteristics that exhibits excellent electron-injecting/transporting performance with hole blocking ability, and has high stability in the thin-film state, as material for an organic electroluminescent device having high efficiency and high durability, and to provide the organic electroluminescent device having high efficiency and high durability using the compound. An organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, wherein the compound of general formula (1) in which a substituted bipyridyl group and a pyridoindole ring structure are bonded via a phenylene group, is used as a constituent material of at least one organic layer.

Abstract: An organic compound with excellent characteristics excelling in hole-injecting/transporting performance and having electron blocking ability, high stability in a thin-film state and high luminous efficiency is provided as material for an organic electroluminescent device. The compound of a general formula (1) having an indenocarbazole ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes.

Abstract: There is provided an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The compound is used to provide a high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device. The present invention is a compound of the following general formula having a carbazole ring structure. The compound is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.

Abstract: An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having a substituted acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes.

Abstract: Provided is a compound having a substituted pyridyl group and a pyridoindole ring structure linked through a phenylene group, having formula (1), and an organic EL device with a pair of electrodes and at least one organic layer interposed between the electrodes, wherein the at least one organic layer having the compound:

Abstract: The present invention relates to a substituted pyridyl compound represented by the following general formula (1), (2), or (3) and an organic electroluminescent element containing a pair of electrodes and at least one organic layer interposed therebetween, in which the at least one organic layer contains the substituted pyridyl compound represented by the following general formula (1), (2), or (3).

Abstract: The invention relates to a compound having a pyridoindole ring structure having a substituted pyridyl group of formula (1); and to an organic electroluminescent device comprising a pair of electrodes and at least one organic layer interposed between the electrodes, wherein at least one of the organic layer(s) contains the compound: wherein Ar represents a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group; R1 to R10 may be the same or different from one another and each independently represents a hydrogen atom, a fluorine atom, a cyano group, an alkyl group, or a substituted or unsubstituted aromatic hydrocarbon group; Z represents a 6-membered aromatic heterocyclic ring containing one nitrogen atom; and m and n each independently represents an integer of 1 to 3, provided that n is 1 when m is 2 or 3.

Abstract: There is provided an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has an electron blocking ability and a highly stable thin-film state with excellent heat resistance. The compound of the present invention is an arylamine compound having a triphenylamine structure. The arylamine compound is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes.

Abstract: A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The organic electroluminescent device includes a pair of electrodes, and a plurality of organic layers sandwiched between the pair of electrodes and including a light emitting layer and an electron blocking layer, wherein a compound of the following general formula (1) having a carbazole ring structure is used as a constituent material of the electron blocking layer and the light emitting layer.

Abstract: The present invention relates to a compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2); and an organic electroluminescent device having a pair of electrodes and at least one organic layer interposed therebetween, in which the compound having a substituted anthracene ring structure and a pyridoindole ring structure, which is represented by the following general formula (1) or the following general formula (2), is used as a constituent material of the aforementioned at least one organic layer.

Abstract: An organic compound is provided having excellent electron-injection/transport performance, hole-blocking ability, and high stability in a thin-film state. An organic electroluminescence device having a high efficiency and a high durability is provided, using the compound. The compound has a substituted bipyridyl group and a pyridoindole ring structure connected with each other through a phenylene group, is of formula (1). The organic EL device has a pair of electrodes and at least one organic layer interposed between the electrodes, wherein the compound is a constituent material for an organic layer therein.

Abstract: An object of the invention is to provide an organic compound having excellent characteristics as a material for highly efficient and highly durable organic EL devices, and also to provide a highly efficient and highly durable organic EL device. This invention relates to a compound represented by the general formula (1) having an oxadiazole ring structure bonded with an aromatic heterocycle, and to an organic electroluminescence device containing the compound: wherein Ar represents a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group; A represents a substituted or unsubstituted aromatic heterocyclic group; and n represents an integer of 1 to 3.

Abstract: A high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device is provided by using an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The organic electroluminescent device includes a pair of electrodes, and a plurality of organic layers sandwiched between the pair of electrodes and including a phosphorescent light-emitting material-containing light emitting layer and a hole transport layer, wherein a compound of the following general formula (1) having a carbazole ring structure is used as a constituent material of the hole transport layer.

Abstract: This invention relates to an arylamine compound having a molecular weight of 1,500 to 6,000 represented by formula (1), and to an organic electroluminescence device having a pair of electrodes and at least one organic layer sandwiched therebetween, wherein the arylamine compound of formula (1) is used as a constituting material of the at least one organic layer: wherein X represents a single bond, CH or CH2, or N or NH; Ar1 and Ar2 are respectively the same and each represents a substituted or unsubstituted phenylene group; R1, R2, R3, and R4 each independently represents an aryl group, wherein the aryl group may be substituted by a diarylamine group in such a manner as to form a triphenylamine partial structure, and the aryl group at the terminal may be substituted, by repetition, by a diarylamino group in such a manner as to form a triphenylamine partial structure; m represents an integer of 0 to 2; and n represents 0 or 1.

Abstract: [Problem] An organic compound of excellent characteristics is provided that exhibits excellent hole-injecting/transporting performance with electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency, the organic compound being provided as material for an organic electroluminescent device having high efficiency and high durability. The invention also provides a high-efficient, high-durable organic electroluminescent device using the compound. [Means for Resolution] The compound is of the following general formula having a carbazole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.

Abstract: [Problem] To provide an organic EL device having high efficiency, low driving voltage and long life by combining various materials for the organic EL device which are excellent in hole and electron injection/transport performances, stability as a thin film and durability.

Abstract: There is provided an organic compound having excellent characteristics, including excellent electron-injecting/transporting performance, hole blocking ability, and high stability in the thin-film state, for use as material of an organic electroluminescent device having high efficiency and high durability. There is also provided a high-efficient and high-durable organic electroluminescent device using the compound. The compound is represented by general formula (1) having a substituted anthracene ring structure and a pyridoindole ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and the compound is used as a constituent material of at least one organic layer.

Abstract: The present invention is to provide an organic compound having excellent characteristics as a material for an organic EL device having a high efficiency and a high durability, and to provide an organic EL device having a high efficiency and a high durability by using the compound.

Abstract: An object of the present invention is to provide an organic compound having excellent characteristics, which is excellent in electron injection/transport performance, has hole blocking property and is high in stability in a thin film state, as a material for an organic EL device having high efficiency and high durability, and further to provide an organic EL device having high efficiency and high durability using this compound. The invention relates to a compound represented by general formula (1), which has a thiadiazole ring structure substituted with a substituted pyridyl group, and to an organic EL device having a pair of electrodes and at least one organic layer interposed therebetween, wherein the compound is contained as a constituent material of at least one of the organic layer(s).

Abstract: A compound having a benzotriazole ring structure and a formula (1): wherein Ar is a substituted or unsubstituted aromatic hydrocarbon group, aromatic heterocyclic group, or condensed polycyclic aromatic group; A and B are the same as or different from each other and each represent a hydrogen atom or a monovalent group of formula (2), provided that A and B are not simultaneously hydrogen atoms: wherein R1 to R8 are the same as or different and each represent a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a trifluoromethyl group, a linear or branched alkyl group having 1 to 6 carbon atoms, aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or condensed polycyclic aromatic group; m is an integer of 0, 1 or 2; X represents a carbon atom or a nitrogen atom; when X is a nitrogen atom, the nitrogen atom does not have substituents or bonding groups of R1, R2, R3 and R4; and when m is 2, a plurality of R1, R2, R3, R4 and X each are the s