Electrical conduction and photoresponses of gamma-ray-irradiated single-stranded DNA/single-walled carbon nanotube composite systems

W. Hong; E. M. Lee; D. W. Kim; Cheol Eui Lee

doi:10.1016/j.nimb.2015.02.038

Electrical conduction and photoresponses of gamma-ray-irradiated single-stranded DNA/single-walled carbon nanotube composite systems

W. Hong, E. M. Lee, D. W. Kim, Cheol Eui Lee

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

1 Citation (Scopus)

Abstract

Effects of gamma-ray irradiation on the electrical conductivity and photoresponse have been studied for single-stranded DNA (ssDNA)/single-walled carbon nanotube (SWNT) composite films. The temperature-dependent electrical conductivity of the ssDNA/SWNT composite films, well described by a fluctuation-induced tunneling model, indicated modification of the barrier for thermally activated conduction by the gamma-ray irradiation. Besides, the photoresponse measurements indicated modified photoexcited charge carrier generation and oxygen photodesorption in the composite systems due to the gamma-ray irradiation.

Original language	English
Pages (from-to)	103-105
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	349
DOIs	https://doi.org/10.1016/j.nimb.2015.02.038
Publication status	Published - 2015 Apr 15

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Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

Keywords

Charge transport and photoresponses
Gamma-ray irradiation effect
Single-stranded DNA/single-walled carbon
nanotube composite film

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nimb.2015.02.038

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Electrical conduction and photoresponses of gamma-ray-irradiated single-stranded DNA/single-walled carbon nanotube composite systems. / Hong, W.; Lee, E. M.; Kim, D. W. et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 349, 15.04.2015, p. 103-105.

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

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abstract = "Effects of gamma-ray irradiation on the electrical conductivity and photoresponse have been studied for single-stranded DNA (ssDNA)/single-walled carbon nanotube (SWNT) composite films. The temperature-dependent electrical conductivity of the ssDNA/SWNT composite films, well described by a fluctuation-induced tunneling model, indicated modification of the barrier for thermally activated conduction by the gamma-ray irradiation. Besides, the photoresponse measurements indicated modified photoexcited charge carrier generation and oxygen photodesorption in the composite systems due to the gamma-ray irradiation.",

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AU - Lee, Cheol Eui

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Electrical conduction and photoresponses of gamma-ray-irradiated single-stranded DNA/single-walled carbon nanotube composite systems

Abstract

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Keywords

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