US 12,239,010 B2
Light-emitting element, light-emitting device, electronic device, and lighting device
Satoshi Seo, Kanagawa (JP); Hideko Inoue, Kanagawa (JP); Miki Kurihara, Kanagawa (JP); Yui Yamada, Kanagawa (JP); Tatsuyoshi Takahashi, Kanagawa (JP); and Hiromitsu Kido, Kanagawa (JP)
Assigned to Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed by Semiconductor Energy Laboratory Co., Ltd., Atsugi (JP)
Filed on Nov. 23, 2020, as Appl. No. 17/101,101.
Application 17/101,101 is a continuation of application No. 15/471,017, filed on Mar. 28, 2017, abandoned.
Claims priority of application No. 2016-074489 (JP), filed on Apr. 1, 2016.
Prior Publication US 2021/0151695 A1, May 20, 2021
Int. Cl. H01L 51/00 (2006.01); C07F 15/00 (2006.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 85/30 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01)
CPC H10K 85/342 (2023.02) [C07F 15/0033 (2013.01); C07F 15/004 (2013.01); C09K 11/06 (2013.01); H10K 50/11 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1044 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/185 (2013.01); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02)] 15 Claims
OG exemplary drawing
 
1. A light-emitting device comprising:
a light-emitting layer comprising a first organic compound, a second organic compound, and an organometallic complex having a structure represented by General Formula (G1):

OG Complex Work Unit Chemistry
wherein R1 to R5 and R7 to R12, R14, and R15 separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, an unsubstituted aryl group having 6 to 13 carbon atoms, or an unsubstituted heteroaryl group having 3 to 12 carbon atoms,
wherein R13 represents a methyl group,
wherein R6 represents a tert-butyl group, and
wherein light emission of the organometallic complex is yellow.