DNA Molecule as a Building Block for Information Technology

DNA Molecule as a Building Block for Information Technology A physical model is developed of one-dimensional charge-carrier transport through the DNA molecule by hopping and tunneling. A computer simulation is conducted on this basis. It is shown that very short transport times, owing to hole tunneling, can be achieved in the case of a narrow potential barrier formed by a reasonable number of adenine–thymine base pairs. Such configurations also provide current–voltage characteristics that are stable over a wide temperature range. As the barrier width increases, so does the relative contribution of hopping to the transport, impairing the electrical properties of the molecule. The practical benefits of using the DNA molecule in nanoelectronics are outlined. It is noted that the DNA molecule offers the designer a set of current–voltage characteristics depending on the molecular configuration. An equivalent electrical network of a DNA molecule is designed, which could serve as a building block of nanoscale digital logic such as the NOT, OR, and AND gates. The switching time is estimated at 10–14–10–12 s. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Microelectronics Springer Journals

DNA Molecule as a Building Block for Information Technology

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Kluwer Academic Publishers-Plenum Publishers
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Engineering; Electrical Engineering
Publisher site
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