Organic electroluminescent materials and devices

Patent metadata

Field	Value
Publication number	US-9847496-B2
Application number	US-201414560010-A
Country	US
Kind code	B2
Filing date	Dec 4, 2014
Priority date	Dec 23, 2013
Publication date	Dec 19, 2017
Grant date	Dec 19, 2017

Abstract

Novel iridium complexes containing a tetradentate or a hexadentate ligand, wherein a part of the ligand that is coordinated to iridium comprise an acetylacetonate structure. These complexes are useful as emitters for phosphorescent OLEDs.

First claim

What is claimed is:

1. A compound having a structure selected from the group consisting of:

wherein G 1 , G 2 , and G 3 are linkers that connect the ligands;
wherein R A , R B , R C , and R D each independently represent mono, di, tri, or tetra-substitution, or no substitution;
wherein R A , R B , R C , R D , R 1 , R 2 ,and R 3 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfonyl, sulfonyl, phosphino, and combinations thereof;
wherein any adjacent substitution can be optionally jointed to form a ring.

2. The compound of claim 1 , wherein the phenylpyridine ligand substituted by R A and R B is the same as the phenylpyridine ligand substituted by R C and R D .

3. The compound of claim 1 , wherein the compound is selected from the group consisting of:

4. The compound of claim 1 , wherein the compound has the structure

5. The compound of claim 1 , wherein the compound has the structure

6. The compound of claim 1 , wherein the compound has the structure

7. The compound of claim 1 , wherein the compound has the structure

8. The compound of claim 1 , wherein the compound has the structure

9. A device comprising one or more organic light emitting devices, wherein at least one of the one or more organic light emitting devices comprising:
an anode;
a cathode; and
an organic layer, disposed between the anode and the cathode, comprising a compound having a structure selected from the group consisting of:

wherein G 1 , G 2 , and G 3 are linkers that connect the ligands;
wherein R A , R B , R C , and R D each independently represent mono, di, tri, or tetra-substitution, or no substitution;
wherein R A , R B , R C , R D , R 1 , R 2 , and R 3 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
wherein any adjacent substitution can be optionally jointed to form a ring.

10. The device of claim 9 , wherein the device is selected from the group consisting of a consumer product, an electronic component module, an organic light-emitting device, and a lighting panel.

11. The device of claim 9 , wherein the organic layer is an emissive layer and the compound is an emissive dopant or a non-emissive dopant.

12. The device of claim 9 , wherein the organic layer further comprises a host, wherein the host comprises a triphenylene containing benzo-fused thiophene or benzo-fused furan;
wherein any substituent in the host is an unfused substituent independently selected from the group consisting of C n H 2n+1 , OC 2 H 2n+1 , OAr 1 , N(C n H 2n+1 ) 2 , N(Ar 1 )(Ar 2 ), CH═CH—C n H 2n+1 , C≡CC n H 2n+1 , Ar 1 , Ar 1 —Ar 2 , C n H 2n —Ar 1 , or no substitut

Assignees

• Universal Display Corp

Inventors

• Xia Chuanjun
• Lin Chun

Classifications

• H01L51/0085 Primary

  Electricity · mapped topic

• C09K2211/1007

  Non-condensed systems · CPC title

• C09K11/06 Primary

  containing organic luminescent materials · CPC title

• C09K2211/185

  of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title

• C07F15/0033

  Iridium compounds · CPC title