Computational Investigation of Quantum Transport to Design Single-Strand DNA Logic Gate Using Silicon Carbide Nanotube Electrode

Abstract

The DNA-based logic circuit has emerged as a potential member for the next-generation ultralow power application due to its rapid self-assemble technique, enormous parallelism, compatibility with various organic and inorganic molecules, and energy efficiency. Density functional theory coupled with non-equilibrium Green’s function-based first principle approach is used in the investigation of quantum scattering transmission property of a single-strand DNA-based logic device using silicon carbide nanotube as electrodes at room temperature. The single-strand DNA nano-logic circuit exhibits high tunneling current in forward and reverse bias conditions for ± 1 V bias voltages. This proposed model can be exploited as bio-inspired logic circuit in future generation devices due to its satisfactory current–voltage response and the nature of resistance.

KEYWORDS:

• Bio logic gate
• DFT
• NEGF
• Quantum transport
• SiC
• ssDNA

Additional information

Funding

The authors are grateful to University Grants Commission (UGC) for sanctioning a research project having File no.: 41-631/2012(SR) under which this paper has been completed.

Notes on contributors

Pradipta Roy

Pradipta Roy completed his master degree in technology (MTech in computer science & engineering) from the University of Calcutta in 2002. He was attached with B P Poddar Institute of Management & Technology, Kolkata, as an assistant professor till 2010. Currently, he is working as an assistant professor in Swami Vivekananda Institute of Science & Technology, Kolkata. His research area is DNA computing, DNA logic circuit analysis, and bio-inspired computing. He is the author of the book chapter published by IGI Global. Corresponding author. E-mail: [email protected]

Debarati Dey

Debarati Dey achieved her master degree in technology (MTech in VLSI design) from the University of Calcutta in 2011. She worked in several organizations like Onida, Bengal College of Engineering & Technology, etc. Currently, she is working as an assistant professor at B P Poddar Institute of Management & Technology, Kolkata. Her research interests are nano technology, quantum cellular automata, and bio-inspired computing. She is the author of the book chapter published by NOVA (USA). E-mail: [email protected]

Debashis De

Debashis De is, currently, working as an associate professor in Department of Computer Science & Engineering, West Bengal University of Technology, Kolkata. He is an adjunct research fellow of University of Western Australia, Perth, He received the Young Scientist Award both in 2005 at New Delhi and in 2011 at Istanbul by International Union of Radio Science (H. Q., Belgium). His research area includes location and power management in the mobile network and mobile cloud computing. E-mail: [email protected]