Gold complexes for OLED applications

Patent metadata

Field	Value
Publication number	US-10672999-B2
Application number	US-201615097425-A
Country	US
Kind code	B2
Filing date	Apr 13, 2016
Priority date	Apr 13, 2015
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

Gold(III) emitters showing high emission quantum efficiency and stable in thermal deposition process are described. High performance OLEDs can be fabricated from these emitters.

First claim

What is claimed is:

1. A gold(III)-based compound having one of the following structures

2. A light-emitting device comprising at least one OLED emitter comprising a gold(III)-based compound having a structure that is recited in claim 1 as the emitting material(s).

3. The device of claim 2 , wherein the device consists of one emissive layer.

4. The device of claim 2 , wherein the device consists of more than one emissive layer.

5. An OLED emitter comprising a gold(III)-based compound, wherein the gold(III)-based compound has one of the following structures:

6. The OLED emitter of claim 5 , wherein the gold(III)-based compound has one of the following structures:

7. A method of making the gold(III)-based compound of claim 1 , comprising:
reacting a halo-substituted biphenyl compound with n-butyl lithium and then adding SnBu 2 Cl 2 to provide a dialkyl-biphenyl tin intermediate;
reacting the dialkyl-biphenyl tin intermediate Intermediate with gold chloride hydrate to provide a multiphenyl dichloro bi-gold complex intermediate; and
reacting the multiphenyl dichloro bi-gold complex intermediate with a deprotonated emission turn-on unit to provide the gold(III)-based compound of claim 1 .

Assignees

• Univ Hong Kong

Inventors

• Che Chi-Ming

Classifications

• C07F9/5045 Primary

  Complexes or chelates of phosphines with metallic compounds or metals · CPC title

• C09K2211/188

  of other metals not provided for in one of the previous groups · CPC title

• C09K2211/1011

  Condensed systems · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title

• C09K2211/1007

  Non-condensed systems · CPC title