TRIAZOLE DERIVATIVE, AND LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE AND ELECTRONIC DEVICE USING THE TRIAZOLE DERIVATIVE

摘要

PROBLEM TO BE SOLVED: To provide a new triazole derivative, a light-emitting element having high luminous efficiency by using the new triazole derivative, moreover a light-emitting device and electronic devices having low power consumption.

SOLUTION: The light-emitting element having high luminous efficiency can be produced by using a 1,2,4-triazole derivative in which an aryl group or a heteroaryl group is bonded to each of 3-position, 4-position and 5-position, and in which any one of the aryl group or heteroaryl group has a 9H-carbazol-9-yl group.

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