Abstract: Provided are a compound having the nitrogen-containing six-membered aromatic ring structure with high electron transport characteristic and high thermal stability, thereof electron transport material, and an OLED using the same. That is to say, a compound having the nitrogen-containing six-membered aromatic ring structure substituted by at least three nitrogen-containing six-membered aromatic groups, and an OLED material and an electron transport material comprising the compound having the nitrogen-containing six-membered aromatic ring structure. An OLED having a pair of anode and cathode and at least one organic layer including a light-emitting layer between the pair of the electrodes, wherein any of the organic layers comprises the compound having the nitrogen-containing six-membered aromatic ring structure.

Abstract: Provided is a boron-containing compound suitable for the material of a blue light-emitting diode and an organic light-emitting diode using the same. The boron-containing compound has a structure represented by the formula (1): X is each independently —NR1—, —CR2R3—, —O— or —S—. In the —NR1— and —CR2R3—, R1 to R3 are each independently hydrogen, deuterium, an alkyl group having 1 to 6 carbon atoms or an aryl group having 5 to 30 core atoms, and R2 and R3 may connect with each other to form a ring. Cy1 is an aryl group having 5 to 30 core atoms. All or part of hydrogen atoms in the formula (1) may be substituted by deuterium, a halogen, an alkyl group having 1 to 6 carbon atoms, an aryl group having 5 to 30 core atoms, a substituted or unsubstituted silyl group, a substituted or unsubstituted amino group, or cyano group.

Abstract: Provided is a blue light-emitting material for organic light-emitting diode (OLED) comprising a phosphinine derivative and the OLED including the same. The light-emitting material for OLED of the present invention comprises the phosphinine derivative having an electron-withdrawing substituent at its C4 position of a phosphorus-containing six-membered ring. The OLED of the present invention has a pair of electrodes and organic layers including light-emitting layers between the pair of the electrodes, wherein the at least one light-emitting layer comprises an anthracene compound and the phosphinine derivative.

Abstract: Provided is a novel hexacoordinated organoantimony complex which emits blue light, and a blue light-emitting OLED comprising the same. The hexacoordinated organoantimony complex of the present invention has an intramolecular ligand so as to form an antimony-centered hexacoordinated structure, wherein carbons and antimony form one to three carbon-antimony bonds in the intramolecular ligand. The OLED of the present invention has a pair of electrodes and organic layers including a light-emitting layer between the pair of the electrodes. At least one of the organic layers, and preferably the light-emitting layer comprises the hexacoordinated organoantimony complex.

Abstract: Provided are a compound having the nitrogen-containing six-membered aromatic ring structure with high electron transport characteristic and high thermal stability, thereof electron transport material, and an OLED using the same. That is to say, a compound having the nitrogen-containing six-membered aromatic ring structure substituted by at least three nitrogen-containing six-membered aromatic groups, and an OLED material and an electron transport material comprising the compound having the nitrogen-containing six-membered aromatic ring structure. An OLED having a pair of anode and cathode and at least one organic layer including a light-emitting layer between the pair of the electrodes, wherein any of the organic layers comprises the compound having the nitrogen-containing six-membered aromatic ring structure.

Abstract: Provided is a boron-containing compound suitable for the material of a blue light-emitting diode and an organic light-emitting diode using the same. The boron-containing compound has a structure represented by the formula (1): X is each independently —NR1—, —CR2R3—, —O— or —S—. In the —NR1— and —CR2R3—, R1 to R3 are each independently hydrogen, deuterium, an alkyl group having 1 to 6 carbon atoms or an aryl group having 5 to 30 core atoms, and R2 and R3 may connect with each other to form a ring. Cy1 is an aryl group having 5 to 30 core atoms. All or part of hydrogen atoms in the formula (1) may be substituted by deuterium, a halogen, an alkyl group having 1 to 6 carbon atoms, an aryl group having 5 to 30 core atoms, a substituted or unsubstituted silyl group, a substituted or unsubstituted amino group, or cyano group.