
Quantum and Thermal Effects in Nanoscale Devices
18 Sep 2008   Contributor(s):: Dragica Vasileska
To investigate lattice heating within a Monte Carlo device simulation framework, we simultaneously solve the Boltzmann transport equation for the electrons, the 2D Poisson equation to get the selfconsistent fields and the hydrodynamic equations for acoustic and optical phonons. The phonon...

BNC Annual Research Review: An Introduction to PRISM and MEMS Simulation
04 Jun 2008   Contributor(s):: Jayathi Murthy
This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the upcoming year.

Nanoscale Opto Thermo Electric Energy Conversion Devices
28 May 2008   Contributor(s):: Ali Shakouri
We review solidstate devices that allow direct conversion of heat into electricity. We describe fundamental and practical limits of conventional thermoelectric materials. Novel metalsemiconductor nanocomposites are developed where the heat and charge transport are modified at the atomic level....

Heat Transfer across Solid Contacts Enhanced with Nanomaterials
11 Feb 2008   Contributor(s):: Timothy S Fisher
This presentation will describe thermal transport processes at solidsolid material interfaces. An overview of applications in the electronics industry will serve to motivate the subject, and then the basic diffusive constriction theory will be developed. The addition of carbon nanotube arrays to...

An Experimentalists’ Perspective
19 Dec 2007   Contributor(s):: Arunava Majumdar
This presentation was one of 13 presentations in the oneday forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational science and engineering.

Microscale Ionic Wind for Local Cooling Enhancement
26 Oct 2007   Contributor(s):: David B Go
As the electronics industry continues to develop small, highly functional, mobile devices, new methods of cooling are required to manage the thermal requirements of the not only the chip but the entire system. Comfortable skin temperatures, small form factors, and limited power consumption are...

MCW07 Simple Models for Molecular Transport Junctions
13 Sep 2007   Contributor(s):: Misha Galperin, Abraham Nitzan, Mark Ratner
We review our recent research on role of interactions in molecular transport junctions. We consider simple models within nonequilibrium Green function approach (NEGF) in steadystate regime.

Electron Emission from Nanoscale Carbon Materials
15 May 2007   Contributor(s):: Timothy S Fisher
Prior studies on electron emission show possibly beneficial effects ofnanoscale phenomena on energyconversion characteristics. For example,recent work has shown that the electric field around a nanoscale fieldemission device can increase the average energy of emitted electrons. Weconsider here...

BNC Annual Research Symposium: Nanoscale Energy Conversion
23 Apr 2007   Contributor(s):: Timothy S Fisher
This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the upcoming year.

CMOSNano Hybrid Technology: a nanoFPGArelated study
04 Apr 2007   Contributor(s):: Wei Wang
Dr. Wei Wang received his PhD degree in 2002 from Concordia University, Montreal, QC, Canada, in Electrical and Computer Engineering. From 2002 to 2004, he was an assistant professor in the Department of Electrical and Computer Engineering, the University of Western Ontario, London, ON, Canada....

Highly Efficient Thermal Transport: The Application of Carbon Nanotube Array Interfaces
01 Feb 2007   Contributor(s):: Baratunde A. Cola
Carbon nanotubes (CNTs) have received much attention in recent years for their extraordinary properties that through careful engineering may be leverage for the development of numerous advantageous applications. However, to date, only few CNT based applications exist in the market place. So when...

Understanding Phonon Dynamics via 1D Atomic Chains
04 Apr 2006   Contributor(s):: Timothy S Fisher
Phonons are the principal carriers of thermal energy in semiconductors and insulators, and they serve a vital role in dissipating heat produced by scattered electrons in semiconductor devices. Despite the importance of phonons, rigorous understanding and inclusion of phonon dynamics in...

Nanotubes and Nanowires: Onedimensional Materials
17 Jul 2006   Contributor(s):: Timothy D. Sands
What is a nanowire? What is a nanotube? Why are they interesting and what are their potential applications? How are they made? This presentation is intended to begin to answer these questions while introducing some fundamental concepts such as waveparticle duality, quantum confinement, the...

Molecular Transport Structures: Elastic Scattering, Vibronic Effects and Beyond
13 Feb 2006   Contributor(s):: Mark Ratner, Abraham Nitzan, Misha Galperin
Current experimental efforts are clarifying quite beautifully the nature of charge transport in socalled molecular junctions, in which a single molecule provides the channel for current flow between two electrodes. The theoretical modeling of such structures is challenging, because of the...

A Gentle Introduction to Nanotechnology and Nanoscience
13 Feb 2006   Contributor(s):: Mark Ratner
While the Greek root nano just means dwarf, the nanoscale has become a giant focus of contemporary science and technology. We will examine the fundamental issues underlying the excitement involved in nanoscale research  what, why and how. Specific topics include assembly, properties,...

NanoScale Device Simulations Using PROPHETPart II: PDE Systems
20 Jan 2006   Contributor(s):: Yang Liu, Robert Dutton
Part II uses examples toillustrate how to build userdefined PDE systems in PROPHET.

NanoScale Device Simulations Using PROPHETPart I: Basics
20 Jan 2006   Contributor(s):: Yang Liu, Robert Dutton
Part I covers the basics of PROPHET,including the setup of simulation structures and parameters based onpredefined PDE systems.

NanoScale Device Simulations Using PROPHET
20 Jan 2006   Contributor(s):: Yang Liu, Robert Dutton
These two lectures are aimed to give a practical guide to the use of ageneral device simulator (PROPHET) available on nanoHUB. PROPHETis a partial differential equation (PDE) solver that offers usersthe flexibility of integrating new models and equations for theirnanodevice simulations. The...

Quantum Chemistry Part II
08 Jul 2004   Contributor(s):: George C. Schatz
This tutorial will provide an overview of electronic structure calculations from achemist's perspective. This will include a review of the basic electronic structuretheories.

Modeling and Simulation of SubMicron Thermal Transport
26 Sep 2005   Contributor(s):: Jayathi Murthy
In recent years, there has been increasing interest in understanding thermal phenomena at the submicron scale. Applications include the thermal performance of microelectronic devices, thermoelectric energy conversion, ultrafast laser machining and many others. It is now accepted that Fourier's...