Electronic device comprising organic compound having p-type semiconducting characteristics

• US 20020158242A1
• Filed: 08/30/2001
• Published: 10/31/2002
• Est. Priority Date: 12/31/1999
• Status: Active Grant

• Current Assignee: LG Chemical Co Ltd (LG Corporation)
• Original Assignee: LG Chemical Co Ltd (LG Corporation)
• Inventors: Son, Se-Hwan, Bae, Jae-Soon, Kim, Kong-Kyeom, Lee, Youn-Gu, Yoon, Seok-Hee, Kim, Ok-Hee
• Granted Patent: US 6,720,573 B2
• Time in Patent Office: Days
• US Class Current: 257/40
• CPC Class Codes: C07D 487/14 Ortho-condensed systems
• CPC Class Codes: C09B 57/00 Other synthetic dyes of known constitution
• CPC Class Codes: H10K 10/466 Lateral bottom-gate IGFETs comprising only a single gate
• CPC Class Codes: H10K 10/486 the channel region comprising two or more active layers, e.g. forming pn heterojunctions
• CPC Class Codes: H10K 2102/103 comprising indium oxides, e.g. ITO
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 50/805 Electrodes
• CPC Class Codes: H10K 85/324 comprising aluminium, e.g. Alq3
• CPC Class Codes: H10K 85/623 containing five rings, e.g. pentacene
• CPC Class Codes: H10K 85/6572 comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
• CPC Class Codes: H10K 85/731 Liquid crystalline materials
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y10S 428/917 Electroluminescent
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]

Abstract

The present invention relates to electronic devices comprising an organic compound acting to inject or transport holes with p-type semi-conducting characteristics. The present invention provides for electronic devices comprising at least one or more layers selected from a group composed of a hole injecting layer, a hole transporting layer, and a hole injecting and transporting layer which comprises hexaazatriphenylene based organic compound represented by chemical formula (1), wherein the devices can use low drive-voltage, and can improve a light-emitting life.

Claims

1. An organic light-emitting device interposed at least one or more layer comprising an organic compound represented by Chemical Formula 1 between anode and cathode:

2. The organic light-emitting device as defined in claim 1, wherein the layer comprising an organic compound represented by Chemical Formula 1 is hole-injecting layer, hole-transporting layer, or hole injecting and transporting layer.

3. The organic light-emitting device as defined in claim 1, wherein the device comprises in order:

a) a transparent substrate;

b) an anode;

c) a hole-injecting layer;

d) a hole-transporting layer;

e) a light-emitting layer;

f) an electron-transporting layer; and

g) a cathode.

4. The organic light-emitting device as defined in claim 1, wherein the device comprises in order:

a) a transparent substrate;

b) an anode;

c) a hole injecting and transporting layer;

e) a light-emitting layer;

f) an electron-transporting layer; and

g) a cathode

5. The organic light-emitting device as defined in claim 1, wherein the compound of Chemical Formula 1 is represented by Chemical Formula 1a:

6. The organic light-emitting device as defined in claim 1, wherein the compound of Chemical Formula 1 is represented by Chemical Formula 1b:

7. The organic light-emitting device as defined in claim 1, wherein the compound of Chemical Formula 1 is represented by Chemical Formula 1c:

8. The organic light-emitting device as defined in claim 1, wherein the compound of Chemical Formula 1 is represented by Chemical Formula 1d:

9. The organic light-emitting device as defined in claim 1, wherein the thickness of the layer comprising the organic compound represented by Chemical Formula 1 is 10-10,000 nm.

10. The organic light-emitting device as defined in claim 1, wherein the layer comprising the organic compound represented by Chemical Formula 1 further comprises a hole-injecting material selected from the group of copper phthalocyanine complex, oligothiophene, alrylamine based compound, and polycyclic aromatic compound.

11. The organic light-emitting device as defined in claim 1, wherein the anode comprises a conducting polymer, or a conducting metal oxide.

13. Electronic devices as defined in claim 12, wherein the device is an organic thin film based transistor, a photo voltaic cell, or an organic photo conductor based drum.

12. Electronic devices comprising at least one or more layers selected from a group composed a hole-injecting layer, a hole-transporting layer, and a hole injecting and transporting layer which comprises an organic compound represented by chemical formula 1: