Carbon nanotube field-effect transistor
|Posted date||Jun 30, 2011|
|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|
|Title||Carbon nanotube field-effect transistor|
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||
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).
2. A sensor according to claim 1, wherein said ultra fine fibers are nanotube-like structures.
3. A sensor according to claim 2, wherein said nanotube-like structures are carbon nanotubes (7).
4. A sensor according to claim 2 or 3, wherein a defect is introduced into said nanotube-like structures.
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.
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.
|IPC(International Patent Classification)||
|Reference ( R and D project )||CREST Creation of Nanodevices and System Based on New Physical Phenomena and Functional Principles AREA|
Contact Information for " Carbon nanotube field-effect transistor "
- Japan Science and Technology Agency Department of Intellectual Property Management
- URL: http://www.jst.go.jp/chizai/
- Address: 5-3, Yonbancho, Chiyoda-ku, Tokyo, Japan , 102-8666
- Fax: 81-3-5214-8476