Organic compound, light-emitting device, light-emitting apparatus, electronic device, and lighting device

Patent metadata

Field	Value
Publication number	US-12048244-B2
Application number	US-202017039623-A
Country	US
Kind code	B2
Filing date	Sep 30, 2020
Priority date	Oct 11, 2019
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

A novel organic compound is provided. The organic compound is represented by General Formulae (G1), (u1), and (g1), where Ar represents a substituted or unsubstituted condensed aromatic ring, one of R1 and R2 represents a group represented by General Formula (u1), and any one of R30 to R40 represents a bond. In addition, A is a group represented by General Formula (g1), and B represents a substituted or unsubstituted phenyl group. Moreover, n is an integer of 0 to 2, and Q1 and Q2 independently represent an oxygen atom or a sulfur atom.

First claim

What is claimed is:

1. A light-emitting device comprising:
an anode;
a cathode; and
an EL layer between the anode and the cathode,
wherein the EL layer comprises a light-emitting layer,
wherein the light-emitting layer comprises a light-emitting substance and a host material,
wherein the host material comprises a first substance having an electron transport property and a second substance having a hole transport property,
wherein a combination of the first substance and the second substance is capable of forming an exciplex,
wherein the first substance is an organic compound represented by Formula (G1):

wherein Q 1 represents an oxygen atom or a sulfur atom,
wherein Ar represents a substituted or unsubstituted condensed aromatic ring,
wherein one of R 1 and R 2 represents a group represented by Formula (u1), and the other of R 1 and R 2 represents any one of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 7 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 30 carbon atoms,
A-(B) n -*  (u1)

wherein A represents a group represented by Formula (g1),
wherein B represents a substituted or unsubstituted phenylene group,
wherein n is an integer of 0 to 2,
wherein * in Formula (u1) represents a bond,

wherein Q 2 represents a sulfur atom or an oxygen atom, and
wherein any one of R 30 to R 40 represents a bond, and each of the rest of R 30 to R 40 independently represents any one of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 7 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.

2. An electronic device comprising:
the light-emitting device according to claim 1 ; and
at least one of a sensor, an operation button, a speaker and a microphone.

3. A light-emitting apparatus comprising:
the light-emitting device according to claim 1 ; and
at least one of a transistor and a substrate.

4. A lighting device comprising:
the light-emitting device according to claim 1 ; and
a housing.

5. The light-emitting device according to claim 1 , wherein the bond is R 40 .

6. The light-emitting device according to claim 1 ,
wherein the group represented by Formula (g1) is a group represented by Formula (g1-1),

wherein Q 2 represents a sulfur atom or an oxygen atom,
wherein each of R 30 to R 39 independently represents any one of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 7 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and
wherein * in Formula (g1-1) represents a bond.

7. The light-emitting device according to claim 1 ,
wherein B is represented by any one of Formulae (B-1) to (B-3),

wherein each of R B1 to R B4 independently represent any one of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 7 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and
wherein * in Formulae (B-1) to (B-3) represents a bond.

8. The light-emitting device according to claim 1 ,
wherein Ar is represented by any one of Formulae (t1) to (t3),

wherein each of R 3 to R 24 independently represents any one of hydrogen, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 7 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and
wherein the one of Formulae (t1) to (t3) is condensed with a five-membered ring of Formula (G1) at any of positions α, β and γ.

9. The light-emitting device according to claim 1 , wherein R 2 is hydrogen.

Assignees

• Semiconductor Energy Lab

Inventors

• Yamaguchi Tomoya
• Yoshizumi Hideko
• Kawano Yuta
• Kido Hiromitsu
• Seo Satoshi

Classifications

• C09K11/06

  containing organic luminescent materials · CPC title

• H10K59/876

  comprising a resonant cavity structure, e.g. Bragg reflector pair · CPC title

• H10K2101/20

  Delayed fluorescence emission · CPC title

• H10K85/656 Primary

  comprising two or more different heteroatoms per ring (H10K85/652 takes precedence) · CPC title

• H10K85/657 Primary

  Polycyclic condensed heteroaromatic hydrocarbons · CPC title