Electrically conductive organic compound and electronic device

• US 20030071259A1
• Filed: 03/28/2002
• Published: 04/17/2003
• Est. Priority Date: 10/15/2001
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Yoshida, Hiroaki
• Granted Patent: US 6,936,190 B2
• Time in Patent Office: Days
• US Class Current: 257/40
• CPC Class Codes: C08G 61/126 with a five-membered ring containing one sulfur atom in the ring
• CPC Class Codes: H01B 1/127 comprising five-membered aromatic rings in the main chain, e.g. polypyrroles, polythiophenes
• CPC Class Codes: H10K 10/466 Lateral bottom-gate IGFETs comprising only a single gate
• CPC Class Codes: H10K 85/113 Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
• CPC Class Codes: H10K 85/40 Organosilicon compounds, e.g. TIPS pentacene

Abstract

In an electrically conductive organic compound, a side chain portion simultaneously exhibiting refractive index anisotropy and a conjugated system electrical conductivity is bonded to a main chain portion exhibiting π conjugated system electrical conductivity. The electrically conductive organic compound is used in the production of a constituent element for electronic devices.

Claims

1. An electrically conductive organic compound in which a side chain portion simultaneously exhibiting refractive index anisotropy and σ

conjugated system electrical conductivity is bonded to a main chain portion exhibiting π

conjugated system electrical conductivity.

2. An electrically conductive organic compound according to claim 1, wherein the main chain portion is constituted by a cyclic π

conjugated system compound.

3. An electrically conductive organic compound according to claim 1 or 2, wherein the main chain portion has a repeating unit represented by the following general formula (I):

4. An electrically conductive organic compound according to claim 3, wherein the main chain portion has a repeating unit represented by the following general formula (I-1):

5. An electrically conductive organic compound according to claim 1 or 2, wherein the main chain portion has a repeating unit represented by the following general formula (II):

6. An electrically conductive organic compound according to claim 5, wherein the main chain portion has a repeating unit represented by the following general formula (II-1):

7. An electrically conductive organic compound according to claim 1 or 2, wherein the side chain portion having the refractive index anisotropy property exhibits a smectic liquid crystal property.

8. An electrically conductive organic compound according to claim 1 or 2, wherein the side chain portion having the refractive index anisotropy property exhibits a nematic liquid crystal property.

9. An electrically conductive organic compound according to claim 1 or 2, wherein the side chain portion is a silane structure represented by the following general formula (III):

10. An electrically conductive organic compound according to claim 1 or 2, which is represented by the following general formula (IV):

11. An electrically conductive organic compound according to claim 1 or 2, which is represented by the following general formula (V):

12. An electronic device comprising a constituent element formed using an electrically conductive organic compound in which a side chain portion simultaneously exhibiting refractive index anisotropy and v conjugated system electrical conductivity is bonded to a main chain portion exhibiting A conjugated system electrical conductivity.

13. An electronic device according to claim 12, wherein the main chain portion of said organic compound is constituted by a cyclic π

conjugated compound.

14. An electronic device according to claim 12 or 13, wherein the main chain portion of said organic compound has a repeating unit represented by the following general formula (I):

15. An electronic device according to claim 14, wherein the main chain portion of said organic compound has a repeating unit represented by the following general formula (I-1):

16. An electronic device according to claim 12 or 13, wherein the main chain portion of said organic compound has a repeating unit represented by the following general formula (II):

17. An electronic device according to claim 16, wherein the main chain portion of said organic compound has a repeating unit represented by the following general formula (II-1):

18. An electronic device according to claim 12 or 13, wherein the side chain portion having the refractive index anisotropy property of said organic compound exhibits a smectic liquid crystal property.

19. An electronic device according to claim 12 or 13, wherein the side chain portion having the refractive index anisotropy property of said organic compound exhibits a nematic liquid crystal property.

20. An electronic device according to claim 12 or 13, wherein the side chain portion of said organic compound is a silane structure represented by the following general formula (III):

21. An electronic device according to claim 12 or 13, wherein said organic compound is represented by the following general formula (IV):

22. An electronic device according to claim 12 or 13, wherein said organic compound is represented by the following general formula (V):

23. An electronic device according to claim 12 or 13, which is in the form of an organic thin film transistor comprising a gate electrode, a gate insulator, a gate insulation film, a source electrode, a drain electrode and a channel layer on a substrate, and wherein the channel layer is formed of said electrically conductive organic compound.

24. An electronic device according to claim 23, which further comprises an orientation film formed from polyimide on the gate insulation layer.

25. An electronic device according to claim 23, wherein the substrate is formed from a plastic material.

26. An electronic device according to claim 12 or 13, wherein the electrically conductive organic compound is dissolved in a solvent to form the constituent element.

27. An electronic device according to claim 26, wherein a solution of the electrically conductive organic compound is applied and cured to form the constituent element.

28. An electronic device according to claim 26, wherein a solution of the electrically conductive organic compound is printed and cured to form the constituent element.

29. An electronic device according to claim 12 or 13, which has flexibility and is foldable.

30. An electronic device according to claim 12 or 13, which is in the form of an electronic paper.