DNA-based biomolecular electronics: theoretical aspects of charge transmission through DNA

Inderpreet Kaur; Lalit M. Bharadwaj; Rakesh Dabas; Amol P. Bhondekar; A. K. Shukla; Vijayinder Bhalla; Ram P. Bajpai

doi:10.1117/12.499323

29 April 2003 DNA-based biomolecular electronics: theoretical aspects of charge transmission through DNA

Inderpreet Kaur, Lalit M. Bharadwaj, Rakesh Dabas, Amol P. Bhondekar, A. K. Shukla, Vijayinder Bhalla, Ram P. Bajpai

Proceedings Volume 5118, Nanotechnology; (2003) https://doi.org/10.1117/12.499323
Event: Microtechnologies for the New Millennium 2003, 2003, Maspalomas, Gran Canaria, Canary Islands, Spain

Abstract

Transmission properties of molecular bridges between conducting leads, especially DNA,as DNA can be synthesized in any sequence, orientation and length, trapped between the nanoeletrodes has drawn many researchers interest to understand how far and how freely charges can move along the stacks of base pairs in DNA. Considering Donor-Bridge-acceptor system, conduction properties of DNA are described in terms of attenuation parameter β and current density J(x), the β value ranges from 0.1-1.4 Å^-1 for DNA and lower values of which corresponds to weak distance dependence of charge transfer and higher to strong distance dependence. Studying HOMO-LUMO distribution and energy gap, 'Critical' Bridge length Nx is determined, less than this many no. of molecules, means N < Nx, promotes super exchange tunneling transition and If N > Nx transition is through hopping. The paper also discusses the simulation of DNA based electronic components e.g. diode and transistors.

Citation Download Citation

Inderpreet Kaur, Lalit M. Bharadwaj, Rakesh Dabas, Amol P. Bhondekar, A. K. Shukla, Vijayinder Bhalla, and Ram P. Bajpai "DNA-based biomolecular electronics: theoretical aspects of charge transmission through DNA", Proc. SPIE 5118, Nanotechnology, (29 April 2003); https://doi.org/10.1117/12.499323

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available