IRIDIUM COMPLEX COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND ILLUMINATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an iridium complex compound which emits red light; a composition which contains the iridium complex compound and a solvent; an organic electroluminescent element which is produced using the composition and has high light emission efficiency; and a display device and an illumination apparatus using the organic electroluminescent element.SOLUTION: There is provided an iridium complex compound having a diazo-triphenylene skeleton and a specific substituent which has a high solubility to a solvent and emits red light efficiently. An element prepared using the iridium complex compound has high light emission efficiency.