DNA sensors based on CNT-FET with floating electrodes

Byeongju Kim; Joohyung Lee; Seon Namgung; Jeongsu Kim; Jae Yeol Park; Moon Sook Lee; Seunghun Hong

doi:10.1016/j.snb.2012.04.063

DNA sensors based on CNT-FET with floating electrodes

Byeongju Kim, Joohyung Lee, Seon Namgung, Jeongsu Kim, Jae Yeol Park, Moon Sook Lee, Seunghun Hong

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

We report a successful development of a floating electrode-based DNA sensor with controllable responses. Here, metallic floating electrodes were fabricated to form Schottky barriers between carbon nanotubes and the floating electrodes. We showed that the sensor response could be enhanced by increasing the number of floating electrodes. We also analyzed the response of the sensors based on the Langmuir isotherm theory.

Original language	English (US)
Pages (from-to)	182-187
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	169
DOIs	https://doi.org/10.1016/j.snb.2012.04.063
State	Published - Jul 5 2012

Bibliographical note

Funding Information:
This research was supported by the Conversing Research Center Program (No. 2011K000683). S.H. acknowledges the support from the National Research Foundation of Korea (NRF) grant (No. 2011-0000390 ) and the Samsung electronics .

Keywords

Carbon nanotube
DNA
Floating electrode
Schottky barrier
Sensor

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10.1016/j.snb.2012.04.063

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title = "DNA sensors based on CNT-FET with floating electrodes",

abstract = "We report a successful development of a floating electrode-based DNA sensor with controllable responses. Here, metallic floating electrodes were fabricated to form Schottky barriers between carbon nanotubes and the floating electrodes. We showed that the sensor response could be enhanced by increasing the number of floating electrodes. We also analyzed the response of the sensors based on the Langmuir isotherm theory.",

keywords = "Carbon nanotube, DNA, Floating electrode, Schottky barrier, Sensor",

author = "Byeongju Kim and Joohyung Lee and Seon Namgung and Jeongsu Kim and Park, {Jae Yeol} and Lee, {Moon Sook} and Seunghun Hong",

note = "Funding Information: This research was supported by the Conversing Research Center Program (No. 2011K000683). S.H. acknowledges the support from the National Research Foundation of Korea (NRF) grant (No. 2011-0000390 ) and the Samsung electronics . ",

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AU - Kim, Byeongju

AU - Lee, Joohyung

AU - Namgung, Seon

AU - Kim, Jeongsu

AU - Park, Jae Yeol

AU - Lee, Moon Sook

AU - Hong, Seunghun

N1 - Funding Information: This research was supported by the Conversing Research Center Program (No. 2011K000683). S.H. acknowledges the support from the National Research Foundation of Korea (NRF) grant (No. 2011-0000390 ) and the Samsung electronics .

PY - 2012/7/5

Y1 - 2012/7/5

N2 - We report a successful development of a floating electrode-based DNA sensor with controllable responses. Here, metallic floating electrodes were fabricated to form Schottky barriers between carbon nanotubes and the floating electrodes. We showed that the sensor response could be enhanced by increasing the number of floating electrodes. We also analyzed the response of the sensors based on the Langmuir isotherm theory.

AB - We report a successful development of a floating electrode-based DNA sensor with controllable responses. Here, metallic floating electrodes were fabricated to form Schottky barriers between carbon nanotubes and the floating electrodes. We showed that the sensor response could be enhanced by increasing the number of floating electrodes. We also analyzed the response of the sensors based on the Langmuir isotherm theory.

KW - Carbon nanotube

KW - DNA

KW - Floating electrode

KW - Schottky barrier

KW - Sensor

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DNA sensors based on CNT-FET with floating electrodes

Abstract

Bibliographical note

Keywords

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