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Physics Express 2012, 2: 1
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Research Article
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Temperature variation affects I-V characteristics of DNA- single-electron transistor
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Rakesh. K. Gupta
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Department of Electronics, G.G.M Science College, Jammu Tawi-180004, Jammu, J&K, India
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Abstract |
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Biomolecules such as Deoxyribonucleic acid (DNA) possess the quantum charge transport property due to their chemical and electrical behavior and have the potential to become a key component for future molecular electronics. DNA Single Electron Transistor (DNA-SET) was proposed and realized by E, Ben-Jacob, Z. Hermon and S. Caspi in1998. In this paper we extend our earlier work on Current-Voltage (I-V) characteristics of DNA-SET using tunneling properties of P-bonds in sugar-Phosphate backbone of single strand DNA(ssDNA) molecule and provide graphically the effect of temperature on Drain to Source current at different temperature (thermal voltage). The charge transport mechanism in DNA-SET is derived from “Orthodox Theory” formulated by Averin and Likharev. The characteristic curves, drawn from the the simulated results of DNA-SET model in ‘C’ language, are plotted using Excel software for the investigation of effect of temperature variation on I-V curves of DNA-SET.
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Keywords |
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Single electron transistor; Deoxyribonucleic acid (DNA); Molecular electronics; Quantum tunneling; Phosphate backbone etc
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