Structures including organic self-assembled monolayers and methods of making the structures

• US 20070254169A1
• Filed: 04/28/2006
• Published: 11/01/2007
• Est. Priority Date: 04/28/2006
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Ohlberg, Douglas, Kamins, Theodore, Yasseri, Amir
• Application Number:
  US11/412,839
• Publication Number:
  US 20070254169A1
• Time in Patent Office: Days
• US Class Current: 428/447
• CPC Class Codes: B05D 1/185 applying monomolecular layers B05D1/204 takes precedence
• CPC Class Codes: B05D 5/02 to obtain a matt or rough surface
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: B82Y 40/00 Manufacture or treatment of nanostructures
• CPC Class Codes: Y10T 428/261 In terms of molecular thickness or light wave length
• CPC Class Codes: Y10T 428/31663 As siloxane, silicone or silane

Abstract

Structures including a substrate having a nano-patterned surface, and a self-assembled monolayer of an organic material on the nano-patterned surface are provided. The self-assembled monolayer is ordered with respect to features of the nano-patterned surface. Methods of making the structures and filament switching devices including a self-assembled monolayer are also provided.

Claims

1. A structure including a self-assembled monolayer, comprising:

a substrate including a nano-patterned surface; and

a self-assembled monolayer of an organic material on the nano-patterned surface, wherein the self-assembled monolayer is ordered with respect to features of the nano-patterned surface.

2. The structure of claim 1, wherein the substrate has a surface formed of an amorphous material.

3. The structure of claim 1, wherein the substrate is a crystalline material which does not create order in the self-assembled monolayer.

4. The structure of claim 1, wherein the substrate is formed of at least one material selected from the group consisting of electrical insulators, electrical conductors, semiconductors, and combinations thereof.

5. The structure of claim 1, wherein the substrate is formed of at least two different materials selected from the group consisting of electrical insulators, electrical conductors, semiconductors, and combinations thereof.

6. The structure of claim 1, wherein the features of the nano-patterned surface have a pitch of about 30 nm to about 1 μ

m.

7. The structure of claim 1, wherein the self-assembled monolayer is continuous, has a surface area of about 1 μ

m² to 100 cm² and is substantially free of disordered domain boundaries.

8. The structure of claim 1, wherein the features comprise raised surfaces separated by recesses, and the self-assembled monolayer covers the raised surfaces, the recesses, or the raised surfaces and the recesses.

9. The structure of claim 1, wherein the polymer material is an alkylsiloxane.

10. The structure of claim 1, wherein:

the substrate includes at least a first surface region of a first material and a second surface region of a second material; and

the self-assembled monolayer of the organic material is formed on at least one of the first region and the second region, wherein the self-assembled monolayer is ordered with respect to features of the at least one of the first surface region and the second surface region.

11. A filament switching device, comprising:

a lower electrode having a nano-patterned surface;

a self-assembled monolayer of an organic material formed on the nano-patterned surface, wherein the self-assembled monolayer is ordered with respect to features of the nano-patterned surface; and

an upper electrode formed on the self-assembled monolayer.

12. The filament switching device of claim 11, wherein:

the lower electrode is formed of a first metal or a semiconductor material;

the organic material is an alkylsiloxane; and

the upper electrode is formed of a second metal.

13. The filament switching device of claim 11, wherein the features of the nano-patterned surface have a pitch of about 30 nm to about 1 μ

m.

14. The filament switching device of claim 11, wherein the self-assembled monolayer is continuous, has a surface area of about 1 μ

m² to about 100 cm² and is substantially free of disordered domain boundaries.

15. The filament switching device of claim 14, wherein the features comprise raised surfaces separated by recesses, and the self-assembled monolayer covers the raised surfaces, the recesses, or the raised surfaces and the recesses.

16. The filament switching device of claim 11, wherein the self-assembled monolayer is formed from an alkylsiloxane.

17. A method of making a structure including a self-assembled monolayer, the method comprising forming a self-assembled monolayer of an organic material on a nano-patterned surface of a substrate, wherein the self-assembled monolayer is ordered with respect to features of the nano-patterned surface.

18. The method of claim 17, wherein the features of the nano-patterned surface have a pitch of about 30 nm to about 1 μ

m.

19. The method of claim 17, wherein the self-assembled monolayer is continuous, has a surface area of about 1 μ

m² to about 100 cm² and is substantially free of disordered domain boundaries.

20. The method of claim 17, wherein the features comprise raised surfaces separated by recesses, and the self-assembled monolayer covers the raised surfaces, the recesses, or the raised surfaces and the recesses.