期刊
出版社
ELSEVIER
DOI: 10.1016/j.nimb.2015.02.038
关键词
Single-stranded DNA/single-walled carbon nanotube composite film; Gamma-ray irradiation effect; Charge transport and photoresponses
类别
资金
- National Research Foundation of Korea [2014M2B2A4030835, 2014028954, NRF-2010-0027963]
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.
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