TY - JOUR
T1 - Electrical conduction and photoresponses of gamma-ray-irradiated single-stranded DNA/single-walled carbon nanotube composite systems
AU - Hong, W.
AU - Lee, E. M.
AU - Kim, D. W.
AU - Lee, Cheol Eui
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (Proton Users Program Project No. 2014M2B2A4030835, 2014028954, and NRF-2010–0027963). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/4/15
Y1 - 2015/4/15
N2 - 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.
AB - 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.
KW - Charge transport and photoresponses
KW - Gamma-ray irradiation effect
KW - Single-stranded DNA/single-walled carbon
KW - nanotube composite film
UR - http://www.scopus.com/inward/record.url?scp=84924029657&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2015.02.038
DO - 10.1016/j.nimb.2015.02.038
M3 - Article
AN - SCOPUS:84924029657
SN - 0168-583X
VL - 349
SP - 103
EP - 105
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ER -