Nitrogen-containing compound, electronic element, and electronic device

Patent metadata

Field	Value
Publication number	US-11524970-B2
Application number	US-202017624170-A
Country	US
Kind code	B2
Filing date	Oct 10, 2020
Priority date	Nov 5, 2019
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

Provided are a nitrogen-containing compound, an electronic element, and an electronic device, and relates to the technical field of organic materials. The nitrogen-containing compound is shown as formula I, and can reduce the working voltage of an electronic element, improve the efficiency of an OLED, and prolong the service life of an OLED.

First claim

What is claimed is:

1. A nitrogen-containing compound, with a general structural formula shown in formula I:

wherein R 1 and R 2 are the same or different, and are each independently selected from the group consisting of substituted or unsubstituted aryl with 6 to 14 ring-forming carbon atoms, substituted or unsubstituted heteroaryl with 5 to 12 ring-forming carbon atoms;
the substituents of R 1 and the substituents of R 2 are each independently selected from: deuterium, alkyl with 1 to 4 carbon atoms, aryl with 6 to 14 carbon atoms, and heteroaryl with 5 to 12 carbon atoms;
X 1 is independently selected from: O and S; and
X 2 is independently selected from: O and S.

2. An electronic element, comprising an anode and a cathode that are arranged oppositely, and a functional layer arranged between the anode and the cathode,
wherein the functional layer comprises the nitrogen-containing compound according to claim 1 .

3. The electronic element according to claim 2 , wherein the functional layer comprises a hole transport layer, and the hole transport layer comprises the nitrogen-containing compound.

4. The electronic element according to claim 3 , wherein the electronic element is an organic electroluminescent device or a solar cell.

5. An electronic device, comprising the electronic element according to claim 2 .

6. A nitrogen-containing compound, with a general structural formula shown in formula I:

wherein X 1 is independently selected from: O and S;
X 2 is independently selected from: O and S;
each of R 1 and R 2 is independently selected from the group consisting of the following groups:

wherein * means a position where the above group is intended to link to

 in formula I.

7. An electronic element, comprising an anode and a cathode that are arranged oppositely, and a functional layer arranged between the anode and the cathode,
wherein the functional layer comprises the nitrogen-containing compound according to claim 6 .

8. The electronic element according to claim 7 , wherein the functional layer comprises a hole transport layer, and the hole transport layer comprises the nitrogen-containing compound.

9. The electronic element according to claim 8 , wherein the electronic element is an organic electroluminescent device or a solar cell.

10. An electronic device, comprising the electronic element according to claim 7 .

11. A nitrogen-containing compound, wherein the nitrogen-containing compound is selected from the group consisting of the following nitrogen-containing compounds:

Assignees

• Shaanxi Lighte Optoelectronics Mat Co Ltd

Inventors

• Nie Qiqi
• Yu Chao

Classifications

• C07D413/12

  linked by a chain containing hetero atoms as chain links · CPC title

• C07D413/14

  containing three or more hetero rings · CPC title

• C07D279/22

  with carbon atoms directly attached to the ring nitrogen atom · CPC title

• C07D413/04

  directly linked by a ring-member-to-ring-member bond · CPC title

• C07D405/12

  linked by a chain containing hetero atoms as chain links · CPC title