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.; Lee, Cheol Eui

doi: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.;
Lee, Cheol Eui

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초록

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. (C) 2015 Elsevier B.V. All rights reserved.

키워드

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

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

저자: Hong, W.; Lee, E. M.; Kim, D. W.; Lee, Cheol Eui

DOI: 10.1016/j.nimb.2015.02.038

발행일: 2015-04-15

유형: Article

저널명: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

권: 349

페이지: 103 ~ 105