Electronic transport characteristics of a single wall carbon nanotube field effect transistor wrapped with deoxyribonucleic acid molecules

J. S. Hwang; H. T. Kim; H. K. Kim; M. H. Son; J. H. Oh; S. W. Hwang; D. Ahn

doi:10.1088/1742-6596/109/1/012015

Electronic transport characteristics of a single wall carbon nanotube field effect transistor wrapped with deoxyribonucleic acid molecules

J. S. Hwang, H. T. Kim, H. K. Kim, M. H. Son, J. H. Oh, S. W. Hwang, D. Ahn

School of Electrical and Computer Engineering

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

8 Scopus citations

Abstract

A SWCNT-FET device wrapped with DNA molecules was fabricated and the electronic transport properties were investigated. The gate modulated current-voltage characteristics of a bare SWCNT-FET device showed a p-type conduction behavior, which was consistent with generally characteristics in previous studies. However, the characteristics of the DNA-wrapped SWCNT-FET showed clear staircase structures. In addition, the conduction type was changed from p-type to n-type and the transconductance of the DNA-wrapped SWCNT-FET became smaller than that of the bare SWCNT-FET. All these observations provided the evidences of DNA wrapping on the surface of SWCNTs. Especially, the observed type conversion was interpreted as a result of oxygen transport from the surface of SWCNT to DNA molecules across the SWCNT-DNA interface.

Original language	English
Article number	012015
Journal	Journal of Physics: Conference Series
Volume	109
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/109/1/012015
State	Published - 1 Mar 2008

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title = "Electronic transport characteristics of a single wall carbon nanotube field effect transistor wrapped with deoxyribonucleic acid molecules",

abstract = "A SWCNT-FET device wrapped with DNA molecules was fabricated and the electronic transport properties were investigated. The gate modulated current-voltage characteristics of a bare SWCNT-FET device showed a p-type conduction behavior, which was consistent with generally characteristics in previous studies. However, the characteristics of the DNA-wrapped SWCNT-FET showed clear staircase structures. In addition, the conduction type was changed from p-type to n-type and the transconductance of the DNA-wrapped SWCNT-FET became smaller than that of the bare SWCNT-FET. All these observations provided the evidences of DNA wrapping on the surface of SWCNTs. Especially, the observed type conversion was interpreted as a result of oxygen transport from the surface of SWCNT to DNA molecules across the SWCNT-DNA interface.",

author = "Hwang, {J. S.} and Kim, {H. T.} and Kim, {H. K.} and Son, {M. H.} and Oh, {J. H.} and Hwang, {S. W.} and D. Ahn",

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T1 - Electronic transport characteristics of a single wall carbon nanotube field effect transistor wrapped with deoxyribonucleic acid molecules

AU - Hwang, J. S.

AU - Kim, H. T.

AU - Kim, H. K.

AU - Son, M. H.

AU - Oh, J. H.

AU - Hwang, S. W.

AU - Ahn, D.

PY - 2008/3/1

Y1 - 2008/3/1

N2 - A SWCNT-FET device wrapped with DNA molecules was fabricated and the electronic transport properties were investigated. The gate modulated current-voltage characteristics of a bare SWCNT-FET device showed a p-type conduction behavior, which was consistent with generally characteristics in previous studies. However, the characteristics of the DNA-wrapped SWCNT-FET showed clear staircase structures. In addition, the conduction type was changed from p-type to n-type and the transconductance of the DNA-wrapped SWCNT-FET became smaller than that of the bare SWCNT-FET. All these observations provided the evidences of DNA wrapping on the surface of SWCNTs. Especially, the observed type conversion was interpreted as a result of oxygen transport from the surface of SWCNT to DNA molecules across the SWCNT-DNA interface.

AB - A SWCNT-FET device wrapped with DNA molecules was fabricated and the electronic transport properties were investigated. The gate modulated current-voltage characteristics of a bare SWCNT-FET device showed a p-type conduction behavior, which was consistent with generally characteristics in previous studies. However, the characteristics of the DNA-wrapped SWCNT-FET showed clear staircase structures. In addition, the conduction type was changed from p-type to n-type and the transconductance of the DNA-wrapped SWCNT-FET became smaller than that of the bare SWCNT-FET. All these observations provided the evidences of DNA wrapping on the surface of SWCNTs. Especially, the observed type conversion was interpreted as a result of oxygen transport from the surface of SWCNT to DNA molecules across the SWCNT-DNA interface.

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Electronic transport characteristics of a single wall carbon nanotube field effect transistor wrapped with deoxyribonucleic acid molecules

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