Nantech Journal Club: Double gated single molecular transistor for charge detection

Double gated single molecular transistor for charge detection

S. J. Ray  and R. Chowdhury

Technische Universität Darmstadt

Abstracts: The electrostatic behaviour of an 1,3-Cyclobutadiene (C4H4) based Single Molecular Transistor has been investigated using the first principle calculation based on Density functional Theory and non-equilibrium Green’s function approach. While the molecule is placed on top of a dielectric layer (backed by a metallic gate) and weakly coupled between the Source/Drain electrodes, the charge stability diagram revealed the presence of individual charge states in the Coulomb Blockade regime. This gets affected significantly on addition of an another gate electrode placed on the top of the molecule. This modified double-gated geometry allows additional control of the total energy of the system that is sensitive to the individual charge states of the molecule, which can be used as a charge sensing technique operational at room temperature.

Journals/issue/page no: JOURNAL OF APPLIED PHYSICS 116, 034307 (2014)

Link to the paper:

Views: 110


You need to be a member of The International NanoScience Community to add comments!

Join The International NanoScience Community

Welcome - about us

Welcome! Nanopaprika was cooked up by Hungarian chemistry PhD student in 2007. The main idea was to create something more personal than the other nano networks already on the Internet. Community is open to everyone from post-doctorial researchers and professors to students everywhere.

There is only one important assumption: you have to be interested in nano!

Nanopaprika is always looking for new partners, if you have any idea, contact me at

Dr. András Paszternák, founder of Nanopaprika

Partner network:

Next partner events of TINC

We are Media Partner of:

© 2019   Created by András Paszternák, PhD (founder).   Powered by

Badges  |  Report an Issue  |  Terms of Service