Chemically Enhanced Carbon-Based Nanomaterials and Devices

09 Nov 2010 | Online Presentations | Contributor(s): Mark Hersam

Carbon-based nanomaterials have attracted significant attention due to their potential to enable and/or improve applications such as transistors, transparent conductors, solar cells, batteries, and …

http://nanohub.org/resources/9929

MCW07 Exploring Trends in Conductance for Well-Defined Single Molecule Circuits

04 Apr 2009 | Online Presentations | Contributor(s): Mark S Hybertsen

In our recent research, we have been able to measure and characterize the impact of intrinsic molecular properties on the conductance of single molecule circuits formed with amine-gold linkages. In …

http://nanohub.org/resources/3077

MCW07 A Quantum Open Systems Approach to Molecular-Scale Devices

25 Feb 2008 | Online Presentations | Contributor(s): Yongqiang Xue

Experimental advances in electrically and optically probing individual molecules have provided new insights into the behavior of single quantum objects and their interaction with the nanoenvironments …

http://nanohub.org/resources/3090

MCW07 Physics of Contact Induced Current Asymmetry in Transport Through Molecules

25 Feb 2008 | Online Presentations | Contributor(s): Bhaskaran Muralidharan, owen miller, Neeti Kapur, Avik Ghosh, Supriyo Datta

We first outline the qualitatively different physics involved in the charging-induced current asymmetries in molecular conductors operating in the strongly coupled (weakly interacting) …

http://nanohub.org/resources/3073

Exploring Physical and Chemical control of molecular conductance: A computational study

31 Jan 2008 | Online Presentations | Contributor(s): Barry D. Dunietz

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http://nanohub.org/resources/3945

Can numerical “experiments” INSPIRE physical experiments?

20 Dec 2007 | Online Presentations | Contributor(s): Supriyo Datta

This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

http://nanohub.org/resources/3716

An Experimentalists’ Perspective

19 Dec 2007 | Online Presentations | Contributor(s): Arunava Majumdar

This presentation was one of 13 presentations in the one-day forum, "Excellence in Computer Simulation," which brought together a broad set of experts to reflect on the future of computational …

http://nanohub.org/resources/3628

MCW07 Modeling Molecule-Assisted Transport in Nanotransistors

06 Nov 2007 | Online Presentations | Contributor(s): Kamil Walczak

Molecular electronics faces many problems in practical device implementation, due to difficulties with fabrication and gate-ability. In these devices, molecules act as the main conducting channel. …

http://nanohub.org/resources/3074

MCW07 Impact of Porphyrin Functional Groups on InAs Gas Sensors

05 Nov 2007 | Online Presentations | Contributor(s): Michael Garcia

Porphyrin molecules are often used for sensor engineering to improve sensitivity and selectivity to specific analytes. It is important to understand how the porphyrin HOMO-LUMO levels deplete …

http://nanohub.org/resources/3149

Computing the Horribleness of Soft Condensed Matter

19 Oct 2007 | Online Presentations | Contributor(s): Eric Jakobsson

A great triumph of computer simulations 40 years ago was to make the liquid state of matter understandable in terms of physical interactions between individual molecules. Prior to the first …

http://nanohub.org/resources/3424

Energy-level Alignment of Aryl Thiols Chemisorbed on Metal Surfaces: Implications for Molecular Electronic Junctions

27 Sep 2007 | Online Presentations | Contributor(s): Roger D. van Zee

Charge-transport through the interface is a key part of the behavior of any electronic junction. One interface property important to molecular-electronic junctions is the energetic mismatch between …

http://nanohub.org/resources/3272

MCW07 Simple Models for Molecular Transport Junctions

13 Sep 2007 | Online Presentations | 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 steady-state regime.

http://nanohub.org/resources/3072

MCW07 Conductance Switching in Fluorene/TiO2 Molecular Heterojunctions

13 Sep 2007 | Online Presentations | Contributor(s): Richard L.McCreery

Molecular junctions consisting of a monolayer of fluorene and 10 nm of TiO2 between conducting contacts exhibit a memory effect upon positive polarization of the of the TiO2 for a few milliseconds. …

http://nanohub.org/resources/3071

MCW07 Molecular Electronics and the Bottom-up View of Electronic Conduction

12 Sep 2007 | Online Presentations | Contributor(s): Supriyo Datta

Molecular electronics is commonly associated with the bottom-up approach to nanofabrication. My objective in this talk is to point out how it also leads to a bottom-up view of electronic conduction …

http://nanohub.org/resources/3239

MCW07 Silicon Based Nanopore Sensors for Detection of DNA Molecules

11 Sep 2007 | Online Presentations | Contributor(s): Samir Iqbal, Demir Akin, Rashid Bashir

Solid-state nanopores have emerged as possible candidates for next-generation DNA sequencing devices. In this talk, we will review our recent work in development of solid-state nanopore channels that …

http://nanohub.org/resources/3079

MCW07 Electronic Level Alignment at Metal-Molecule Contacts with a GW Approach

05 Sep 2007 | Online Presentations | Contributor(s): Jeffrey B. Neaton

Most recent theoretical studies of electron transport in single-molecule junctions rely on a Landauer approach, simplified to treat electron-electron interactions at a mean-field level within density …

http://nanohub.org/resources/3094

MCW07 Modeling Charging-based Switching in Molecular Transport Junctions

23 Aug 2007 | Online Presentations | Contributor(s): Sina Yeganeh, Misha Galperin, Mark Ratner

We will discuss several proposed explanations for the switching and negative differential resistance behavior seen in some molecular junctions. It is shown that a proposed polaron model is …

http://nanohub.org/resources/3076

Amine Linked Single Molecule Circuits: Systematic Measurements & Understanding

02 Jul 2007 | Online Presentations | Contributor(s): Mark S Hybertsen

Formation and function of well-defined linkages between organic molecules and metallic electrodes has been a key issue in the field of molecular electronics. We recently discovered that the …

http://nanohub.org/resources/2894

Orbital Mediated Tunneling in a New Unimolecular Rectifier

25 May 2007 | Online Presentations | Contributor(s): Robert Metzger, NCN at Northwestern University

In 1997 we showed that hexadecylquinolinium tricyanoquinodimethanide is a unimolecular rectifier, by scanning tunneling microscopy and also as a Langmuir-Blodgett (LB) monolayer, sandwiched between …

http://nanohub.org/resources/2748

BNC Annual Research Symposium: Nanoelectronics and Semiconductor Devices

23 Apr 2007 | Online Presentations | Contributor(s): David Janes

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 …

http://nanohub.org/resources/2632