MATERIAL FOR LIGHT-EMITTING ELEMENT, LIGHT-EMITTING ELEMENT, ELECTRONIC APPARATUS AND ILLUMINATING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a new material for light-emitting element which can convert a triplet excitation energy into light-emission, and to provide a light-emitting element using the new material for light-emitting element.

SOLUTION: The material for light-emitting element includes an ionic iridium complex in which a 2,6-bis(2-picolinyl)pyridine structure is coordinated to iridium, or includes an ionic iridium complex represented by structural formula (1). The light-emitting element uses the material for light-emitting element.

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