公开(公告)号：US20170271600A1

公开(公告)日：2017-09-21

申请号：US15455966

申请日：2017-03-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshiaki TSUNOI ,  Hideko INOUE ,  Takeyoshi WATABE ,  Satomi MITSUMORI ,  Nobuharu OHSAWA

IPC: H01L51/00 ,  C09K11/06 ,  C07F15/00

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/3244 ,  H01L27/3281 ,  H01L51/5016 ,  H01L2251/552 ,  H05B33/14 ,  Y02P20/582

Abstract: A novel organometallic complex is provided. An organometallic complex emitting green to blue phosphorescence is provided. An organometallic complex having a deep LUMO level and emitting green to blue phosphorescence is provided. A light-emitting element with high emission efficiency is provided. A light-emitting element emitting green to blue phosphorescence and having low drive voltage is provided. A light-emitting device with low power consumption is provided. The organometallic complex includes iridium and a ligand having a triazole skeleton. The triazole skeleton has a group including a pyridine ring or a group including a pyrimidine ring and an aryl group. One of nitrogen atoms included in the triazole skeleton is coordinated to the iridium. The aryl group is bonded to the iridium at the ortho position of the aryl group.

公开(公告)号：US20250151610A1

公开(公告)日：2025-05-08

申请号：US18837524

申请日：2023-02-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD

Inventor： Toshiaki TSUNOI ,  Tomoya YAMAGUCH ,  Hideko YOSHIZUMI ,  Satoshi SEO

IPC: H10K85/30 ,  C07F7/00 ,  C09K11/06 ,  H10K50/11 ,  H10K85/60

Abstract: A novel organometallic complex that improves emission efficiency of a light-emitting device is provided. The organometallic complex represented by General Formula (G1) is provided. In the formula, X represents carbon or nitrogen, and the carbon is bonded to any one of hydrogen (including deuterium), a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, and a substituted or unsubstituted aryl group. Furthermore, R1 to R3 each independently represent any one of hydrogen (including deuterium), a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, and a substituted or unsubstituted aryl group. Furthermore, n represents an integer greater than or equal to 1 and less than or equal to 4. The borate ligands may be the same or different from each other. Furthermore, n's may be the same or different from each other. In the case where n is 2 or more, X's, R1's, and R2's may be the same or different from each other. In the case where n is 2 or less, R3's may be the same or different from each other.

公开(公告)号：US20170213989A1

公开(公告)日：2017-07-27

申请号：US15404329

申请日：2017-01-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshiaki TSUNOI ,  Hideko INOUE ,  Takahiro ISHISONE ,  Takeyoshi WATABE

IPC: H01L51/00 ,  C09K11/06 ,  C07F15/00

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/5016 ,  H01L51/504 ,  H01L2251/5384 ,  H01L2251/552

Abstract: A novel organometallic complex having a low HOMO level and emitting blue to green phosphorescence is provided. The organometallic complex includes a structure represented by General Formula (G1). The organometallic complex includes iridium and a ligand. The ligand has an imidazole skeleton including nitrogen bonded to the iridium, and an N-carbazolyl group bonded to the 2-position of the imidazole skeleton through a phenylene group. The phenylene group is bonded to the iridium. In the formula, each of R1 to R14 independently represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 5 to 8 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms.