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 |
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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 | |
Publication status | Published - 2015 Apr 15 |
Bibliographical note
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