A Personal Quest for Information

Online Presentations | 19 Feb 2004 | Contributor(s): Vwani P. Roychowdhury

This talk will report results and conclusions from my personal investigations into several different disciplines, carried out with the unifying intent of uncovering some of the fundamental principles that govern representation, processing, and the communication of information. The specific...

Digital Electronics: Fundamental Limits and Future Prospects

Online Presentations | 20 Jan 2004 | Contributor(s): Konstantin K. Likharev

I will review some old and some recent work on the fundamental (and not so fundamental) limits imposed by physics of electron devices on their density and power consumption.

2003 Molecular Conduction Workshop Agenda

Presentation Materials | 09 Jul 2003

This workshop brought together leading groups in this field to discuss status and key challenges in molecular electronics. Both experimental and theoretical/modeling efforts were discussed.

Structure and Ion Permeation of the Gramicidin Channel using Molecular Dynamics

Online Presentations | 12 Apr 2004 | Contributor(s): Toby Allen

Molecular dynamics (MD) has become an essential tool for obtaining microscopic insight into biological function. The gramicidin channel as an excellent benchmark system for this purpose. Using extensive MD simulations with explicit solvent and membrane, we determine the backbone structure and...

Contacting Molecules - Chemistry in Molecular Electronics

Online Presentations | 12 Apr 2004 | Contributor(s): Ilona Kretzschmar

The study of the basic electron transport mechanism through molecular systems has been made accessible by fabrication techniques that create metallic contacts to a small number of organic molecules. In my talk, I will discuss some of the groundbreaking discoveries such as the measurement of the...

Nanoelectronics/Mechanics With Carbon Nanotubes

Online Presentations | 26 Feb 2004 | Contributor(s): Ji-Yong Park

In this talk, I will present efforts to understand electrical/mechanical properties of carbon nanotubes (CNTs) by combining electric transport measurements and the scanning probe microscopy.

Electronic Transport Through Self-Assembled Monolayers

Online Presentations | 25 Feb 2004 | Contributor(s): Takhee Lee

Characterization of charge transport in molecular scale electronic devices has to date shown exquisite sensitivity to specifics of device fabrication and preparation. Thus, intrinsic molecular band structure has been problematic to extract from published results. Here we demonstrate...

Macromolecular Simulation: A Computational Perspective

Online Presentations | 16 Feb 2004 | Contributor(s): Robert D. Skeel

The study of cold atomic gases is exploding, driven largely by the rapid experimental developments. This field has become highly interdisciplinary, connecting a great variety of interesting problems: weakly and strongly correlated quantum condensed matters, nuclear matters, and physics of low...

Molecular Electronics Pathway for Molecular Memory Devices

Online Presentations | 06 Feb 2004 | Contributor(s): Ranganathan Shashidhar

We have been developing a scale molecular electronic device using a 30 nm sized plant virus particle as the scaffold. This talk describes the bioengineering aspects of how the virus particle is converted to a molecular electronic circuit and its electrical characterization. The talk describes...

Quantum Electromechanical Systems: Are we there yet?

Online Presentations | 05 Feb 2004 | Contributor(s): Andrew Cleland

Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. Driving electrons out of equilibrium by applying the voltage across the conductor, one may control this electromechanical noise.

Towards a Terahertz Solid State Bloch Oscillator

Online Presentations | 29 Jan 2004 | Contributor(s): S. James Allen

The concepts of Bloch oscillation and Zener breakdown are fundamental to electron motion in periodic potentials and were described in the earliest theoretical developments of electron transport in solids. But only in the past 10 years have experiments clearly demonstrated various aspects of Bloch...

Quantum-dot Cellular Automata

Online Presentations | 24 Nov 2003 | Contributor(s): Craig S. Lent

The multiple challenges presented by the problem of scaling transistor sizes are all related to the fact that transistors encode binary information by the state of a current switch. What is required is a new paradigm, still capable of providing general purpose digital computation, but which can...

Electronic Transport in Semi-conducting Carbon Nanotube Transistor Devices

Online Presentations | 16 Oct 2003 | Contributor(s): Joerg Appenzeller

Recent demonstrations of high performance carbon nanotube field-effect transistors (CNFETs) highlight their potential for a future nanotube-based electronics. Besides being just a nanometer in diameter, carbon nanotubes offer intrinsic advantages if compared with silicon that are responsible for...

Nanoelectronic Scaling Tradeoffs: What does Physics Have to Say?

Presentation Materials | 23 Sep 2003 | Contributor(s): Victor Zhirnov

Beyond CMOS, several completely new approaches to information-processing and data-storage technologies and architectures are emerging to address the timeframe beyond the current SIA International Technology Roadmap for Semiconductors (ITRS). A wide range of new ideas have been proposed for...

Bio-nanotechnology: Implications for More Effective Tissue Engineering Materials

Online Presentations | 06 Mar 2003 | Contributor(s): Thomas J. Webster

Nanotechnology can be defined as using materials and systems whose structures and components exhibit novel and significantly changed properties by gaining control of structures at the atomic, molecular, and supramolecular levels. Although many advanced properties for materials with constituent...

Nanoelectronics and the Future of Microelectronics

Online Presentations | 22 Aug 2002 | Contributor(s): Mark Lundstrom

Progress in silicon technology continues to outpace the historic pace of Moore's Law, but the end of device scaling now seems to be only 10-15 years away. As a result, there is intense interest in new, molecular-scale devices that might complement a basic silicon platform by providing it...

Inelastic Effects in Molecular Conduction

Online Presentations | 12 Apr 2004 | Contributor(s): Abraham Nitzan

Molecular electron transfer, as treated by the Marcus theory, strongly depends on nuclear motion as a way to achieve critical configurations in which charge rearrangement is possible. The electron tunneling process itself is assumed to occur in a static nuclear environment. In the application of...

Electrical Conduction through Molecules

Papers | 08 Jul 2003 | Contributor(s): Ferdows Zahid, Magnus Paulsson, Supriyo Datta

In recent years, several experimental groups have reported measurements of the current-voltage (I-V) characteristics of individual or small numbers of molecules. Even three-terminal measurements showing evidence of transistor action has been reported using carbon nanotubes as well as...

Mini-Workshop on Carbon-Nanotube FETs

Workshops | 13 May 2003

This informal one-day workshop was intended to discuss theory, modeling, and simulation for CNT-electronics, specifically FETs. The objective was to kick off an NSF-funded project on the modeling and simulatin of CNT-electronics. A small group of experimentalists, theorists, and computational...

Resistance of a Molecule

Papers | 29 Apr 2003 | Contributor(s): Magnus Paulsson, Ferdows Zahid, Supriyo Datta

In recent years, several experimental groups have reported measurements of the current-voltage (I-V) characteristics of individual or small numbers of molecules. Even three-terminal measurements showing evidence of transistor action has been reported using carbon nanotubes [1, 2] as well as...