| abstract |
Provided is a light-emitting element having excellent luminance life. This light-emitting element comprises a positive electrode, a negative electrode, and a first organic layer and a second organic layer provided between the positive electrode and the negative electrode, wherein: the first organic layer is a layer including a phosphorescent compound represented by formula (1), and a compound represented by formula (H); and the second organic layer is a layer including a crosslinked product of a crosslinking material. (In formula (1), M represents an iridium atom etc., n 1 represents an integer of 1 or greater, n 2 represents an integer of 0 or greater, E 1 and E 2 each represent a carbon atom etc., ring L 1 represents an aromatic heterocycle, ring L 2 represents an aromatic hydrocarbon ring etc., and A 1 -G 1 -A 2 represents an anionic bidentate ligand.) (In formula (H), n H1 represents an integer from 0 to 5, n H2 represents an integer from 1 to 10, Ar H1 represents a specific monovalent heterocyclic group, L H1 represents an alkylene group, an arylene group, etc., Ar H2 is a nitrogen-containing heterocyclic group including an sp 2 nitrogen atom as a ring-constituting atom, and at least one of Ar H1 and Ar H2 includes a dendron.) |