Electronic device using carbon nanotubes

• US 7,211,853 B2
• Filed: 01/22/2004
• Issued: 05/01/2007
• Est. Priority Date: 07/26/2001
• Status: Expired due to Fees

• Current Assignee: Technische Universiteit Delft
• Original Assignee: Technische Universiteit Delft
• Inventors: Dekker, Cees, Bachtold, Adrian
• Primary Examiner(s): Owens; Douglas W.
• Application Number:
  US10/762,625
• Publication Number:
  US 20040169241A1
• Time in Patent Office: 1,195 Days
• Field of Search: 257/296, 977/762
• US Class Current: 257/296
• CPC Class Codes: B82Y 10/00 Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
• CPC Class Codes: G11C 13/025 using fullerenes, e.g. C60, or nanotubes, e.g. carbon or silicon nanotubes
• CPC Class Codes: G11C 2213/17 Memory cell being a nanowire transistor
• CPC Class Codes: H01L 29/0665 the shape of the body defining a nanostructure nanotechnology per se B82B
• CPC Class Codes: H01L 29/0673 oriented parallel to a substrate
• CPC Class Codes: H10K 10/46 Field-effect transistors, e.g. organic thin-film transistors [OTFT] H10K10/43 takes precedence
• CPC Class Codes: H10K 19/00 Integrated devices, or assemblies of multiple devices, comprising at least one organic element specially adapted for rectifying, amplifying, oscillating or switching, covered by group H10K10/00
• CPC Class Codes: H10K 85/20 Carbon compounds, e.g. carbon nanotubes or fullerenes
• CPC Class Codes: Y10S 977/762 Nanowire or quantum wire, i.e. axially elongated structure having two dimensions of 100 nm or less

Abstract

An electronic device incorporating a tubular shaped carbon molecule supported by a substrate, which molecule is provided with source and drain electrodes, as well as a gate electrode, wherein the gate electrode is a metallic electrode. The metallic electrode has a surface layer of oxide, preferably native oxide. The metallic electrode is preferably aluminium, zinc and copper.

Claims

1. An electronic device comprising a tubular shaped carbon molecule supported by a substrate, which molecule is provided with source and drain electrodes directly contacting said carbon molecule, as well as a gate electrode, wherein the gate electrode is a metallic electrode.

2. The electronic device according to claim 1, wherein the metallic electrode has a surface layer of oxide.

3. The electronic device according to claim 2, wherein the surface layer of oxide comprises a native oxide.

4. The electronic device according to claim 1, wherein the metallic electrode is selected from the group consisting of aluminum, zinc and copper.

5. The electronic device according to claim 4, wherein the metallic electrode is an aluminum electrode.