TRIAZOLE DERIVATIVE, LIGHT EMITTING ELEMENT USING TRIAZOLE DERIVATIVE, LIGHT EMITTING DEVICE, ELECTRONIC EQUIPMENT AND LIGHTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a substance that facilitates hole injection and has high triplet excitation energy, and to provide a light-emitting element having a low driving voltage using a substance that facilitates hole injection and has high triplet excitation energy, and to provide a light-emitting device, electronic equipment and a lighting device with low power consumption.

SOLUTION: The triazole derivative is expressed by general formula (G3). In the formula, A represents oxygen or sulfur; Ar1, Ar2and Ar4each represent an aryl group; and R1to R7each independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.

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