Event Details
Modeling of Electronic Transport in Molecular-Scale Devices
Presenter: Hongyu Bao
Supervisor: Dr. Christo Papadopoulos
Date: Mon, August 17, 2015
Time: 10:30:00 - 11:30:00
Place: EOW 430
ABSTRACT
Abstract:
Miniaturization in electronics has motivated the development of molecular devices. Molecular devices can be defined as a technology utilizing the properties of matter at molecular-scales to explore electronic functions. This can involve a single molecule or small groups of molecules in device-based fabrication for electronic applications.
This report focuses on the modeling of electronic transport in molecular-scale devices. Quantum mechanical models for coherent transport and non-coherent are first presented. Coherent transport does not take phase-breaking processes and heat dissipation into consideration, while non-coherent transport takes both of these non-ideal effects into consideration. As a result, the model for non-coherent transport is more complex than the model for coherent transport. Examples based on these models are given as well. Finally, the model for coherent transport is applied to molecular-scale devices with different potential barriers, and the transmission functions and I-V characteristics are plotted and compared.