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Carbon nanotube field-effect transistor

Foreign code F110003636
File No. A242-27WO
Posted date Jun 30, 2011
Country EPO
Application number 04734418
Gazette No. 1645871
Gazette No. 1645871
Date of filing May 21, 2004
Gazette Date Apr 12, 2006
Gazette Date Apr 6, 2016
International application number JP2004007300
International publication number WO2004104568
Date of international filing May 21, 2004
Date of international publication Dec 2, 2004
Priority data
  • 2004JP007300 (May 21, 2004) WO
  • P2003-146480 (May 23, 2003) JP
  • P2004-037866 (Feb 16, 2004) JP
Title Carbon nanotube field-effect transistor
Abstract A single-electron transistor comprising at least a substrate (1), a source electrode (3) and a drain electrode (4) formed on top of the substrate (1) opposing to each other, and a channel arranged between the source electrode (3) and the drain electrode (4) is disclosed wherein the channel is composed of ultra fine fibers (CNT) (7).
By having such a constitution, a sensor can have excellent sensitivity.
Scope of claims [claim1]
1. A sensor comprising at least a substrate (1), a source electrode (3) and a drain electrode (4) formed on top of said substrate (1) opposing to each other, and a channel arranged between said source electrode (3) and said drain electrode (4), wherein said channel is composed of ultra fine fibers,
wherein a gate electrode is formed in a site of said substrate other than the positions where said source electrode (3) and said drain electrode (4) are placed, wherein a SiO2 film on the substrate (1) on an opposite side to the channel is molecule-modified by a specific substance (13) interacting with a substance to be detected, and
such that a sample solution (15) containing substance to be detected (14) can be put between the modified substrate and the gate electrode (8).
[claim2]
2. A sensor according to claim 1, wherein said ultra fine fibers are nanotube-like structures.
[claim3]
3. A sensor according to claim 2, wherein said nanotube-like structures are carbon nanotubes (7).
[claim4]
4. A sensor according to claim 2 or 3, wherein a defect is introduced into said nanotube-like structures.
[claim5]
5. A sensor according to claim 1, wherein said substance to be detected (14) and said specific substance (13) are biopolymers interacting with each other.
[claim6]
6. A sensor according to claim 5, wherein said substance to be detected (14) is an antigen or an antibody, and said specific substance is an antibody or an antigen.
  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • MATSUMOTO KAZUHIKO
  • MUKASA KOICHI
  • ISHII ATSUSHI
  • TAKEDA SEIJI
  • SAWAMURA MAKOTO
  • SUBAGYO AGUS
  • HOSOI HIROTAKA
  • SUEOKA KAZUHISA
  • KIDA HIROSHI
  • SAKODA YOSHIHIRO
IPC(International Patent Classification)
Reference ( R and D project ) CREST Creation of Nanodevices and System Based on New Physical Phenomena and Functional Principles AREA
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