| 摘要 |
Disclosed is a light emitting device material including a pyrene compound represented by formula (1) below, which enabled to obtain a light emitting device having high luminance efficiency and good durability. Also disclosed is a light emitting device using such a material. (R 1 to R 17 may be the same or different and are each selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, a heterocyclic group, an alkoxy group, an alkylthio group, an aryl ether group, an aryl thioether group, an aryl group, a heteroaryl group, an amino group, a silyl group, -p(=O)R 18 R 19 , and a ring structure formed together with an adjacent substituent; R 18 and R 19 are each selected from an aryl group and a heteroaryl group; n is an integer of 1 to 2; and X is selected from the group consisting of a single bond, an arylene group and a heteroarylene group, provided that at least one of R 10 to R 17 is used to link to X.)
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