Carbon Nanotube Field-Effect Transistor for DNA Sensing

A field-effect transistor (FET) using carbon nanotubes (CNTs) as the conducting channel (CNTFET) has been developed, designed such that the CNT conducting channel (15  μ m long, 700  μ m wide) is directly exposed to medium containing target deoxyribonucleic acid (DNA). The CNTFET operates at high ON...

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Bibliographic Details
Published inJournal of electronic materials Vol. 46; no. 6; pp. 3507 - 3511
Main Authors Xuan, Chu T., Thuy, Nguyen T., Luyen, Tran T., Huyen, Tran T. T., Tuan, Mai A.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.06.2017
Springer Nature B.V
Subjects
Aqueous solutions
Carbon nanotubes
Characterization and Evaluation of Materials
Chemistry and Materials Science
Deoxyribonucleic acid
DNA
Electronics and Microelectronics
Field effect transistors
Instrumentation
Leakage current
Materials Science
Optical and Electronic Materials
Semiconductor devices
Solid State Physics
Transistors
DNA sensor
Field-effect transistor
CNTFET
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Summary:A field-effect transistor (FET) using carbon nanotubes (CNTs) as the conducting channel (CNTFET) has been developed, designed such that the CNT conducting channel (15  μ m long, 700  μ m wide) is directly exposed to medium containing target deoxyribonucleic acid (DNA). The CNTFET operates at high ON-current of 1.91  μ A, ON/OFF-current ratio of 1.2 × 10 5 , conductance of 4.3  μ S, and leakage current of 16.4 pA. We present initial trials showing the response of the CNTFET to injection of target DNA into aqueous medium.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-016-5238-2