# US 11,114,621 B2 · Electroactive materials

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- Number: US 11,114,621 B2
- Document ID: US11114621B2
- Status: Granted
- Kind: B2
- Application number: 16/311,387
- Filed: 2017-06-26
- Published: 2019-08-01
- Granted: 2021-09-07
- Earliest claimed: 2016-07-20
- Assignees: LG Chem, Ltd.
- Applicants: LG Chem, Ltd.
- Inventors: Weiying Gao; Norman Herron
- Web page: https://patentgrep.com/patent/US11114621B2

## CPC

- C09K 11/06: containing organic luminescent materials
- H10K 50/11: characterised by the electroluminescent [EL] layers
- H10K 50/171: {Electron injection layers}
- H10K 85/615: {Polycyclic condensed aromatic hydrocarbons, e.g. anthracene}
- H10K 85/622: {containing four rings, e.g. pyrene}
- H10K 85/626: {containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene}
- H10K 85/633: {comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom}
- H10K 85/6572: {comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole}
- H10K 50/10: OLEDs or polymer light-emitting diodes [PLED]
- H10K 50/15: Hole transporting layers
- H10K 50/16: Electron transporting layers
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

There is disclosed an electroactive composition including (a) a host compound having Formula I and (b) a photoactive dopant. In Formula I: R1 is the same or different at each occurrence and is D, alkyl, silyl, germyl, deuterated alkyl, deuterated silyl, or deuterated germyl; a is an integer from 0-7; b is an integer from 0-8; c is an integer from 0-4; and d is an integer from 0-7.

## Claims

### Claim 1

An electroactive composition comprising (a) a host compound having the following Formula I and (b) a photoactive dopant
wherein:
R1 is D;
a is an integer from 0-7;
b is an integer from 0-8;
c is an integer from 0-4; and
d is an integer from 0-7; an
a+b+c+d=15-26.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the dopant has Formula II or Formula III
where:
A is the same or different at each occurrence and is a hydrocarbon aryl or heteroaryl group having from 3-60 ring carbon atoms;
Q′ is a hydrocarbon aryl or heteroaryl having from 3-60 ring carbon atoms;
p and q are independently an integer from 1-6.

### Claim 3 (depends on 2)

The composition of claim 2, wherein Q′ is derived from a compound selected from the group consisting of anthracene, chrysene, pyrene, benzofluorene, naphthofuran, naphthodifuran, substituted derivatives thereof, and deuterated analogs thereof.

### Claim 4 (depends on 1)

An organic electronic device comprising an anode, a cathode, and a photoactive layer therebetween, wherein the photoactive layer comprises the composition of claim 1.