US 12,312,367 B2
Iridium complex-containing composition, organic light emitting device having the same, display apparatus, imaging apparatus, electronic equipment, lighting apparatus, and moving body
Takeshi Sekiguchi, Kanagawa (JP); Kentaro Ito, Tokyo (JP); and Katsuyuki Hotta, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 7, 2021, as Appl. No. 17/224,568.
Claims priority of application No. 2020-070485 (JP), filed on Apr. 9, 2020; and application No. 2021-001002 (JP), filed on Jan. 6, 2021.
Prior Publication US 2021/0317152 A1, Oct. 14, 2021
Int. Cl. C07F 15/00 (2006.01); H10K 85/30 (2023.01); H10K 50/11 (2023.01); H10K 50/16 (2023.01); H10K 101/10 (2023.01)
CPC C07F 15/004 (2013.01) [H10K 85/342 (2023.02); H10K 50/11 (2023.02); H10K 50/16 (2023.02); H10K 2101/10 (2023.02)] 23 Claims
OG exemplary drawing
 
1. A composition comprising:
a homo-N-trans (HNT) iridium complex having an iridium atom, and a first ligand, a second ligand, and a third ligand that are bonded to the iridium atom,
the second ligand having the same structure as the first ligand,
the third ligand having a different structure from the first and second ligands; and
an isomer of the iridium complex, the isomer having an iridium atom, a fourth ligand, a fifth ligand, and the third ligand,
the fourth ligand being a ligand represented by the same rational formula as that of the first ligand, and
the fifth ligand being a ligand represented by the same rational formula as that of the second ligand,
wherein a composition ratio of the isomer relative to a total of the iridium complex and the isomer is 1.0% or less and more than 0%.