Perspectives on Nanoscale Electron Transport: Columbia NSEC 5th Year Anniversary Celebration and Symposium

Perspectives on Nanoscale Electron Transport: Columbia NSEC 5th Year Anniversary Celebration and Symposium

Friday, May 18, 2007

The New York Academy of Sciences

Presented By

Presented by the Nanobiotechnology Discussion Group and Columbia University

 

 

Program

12:30
Poster Set-Up

1:00
Welcome and introductions
Jim Yardley, Managing Director

1:10
Molecular Junction Transport: Some Vibronic Effects
Mark Ratner
Northwestern University

2:00
Understanding Conductance in Well-Defined Single Molecule Circuits
Latha Venkataraman and Mark Hybertsen
Columbia University and Brookhaven National Labs

2:50
Break and Poster Set-Up

3:05
Nano Carbon: From Molecular Transistors to Atomic Drumheads
Paul McEuen
Cornell University

3:55
Reaction Chemistry Meets Lithography
Colin Nuckolls
Columbia University

4:45
Closing remarks and celebratory comments
Tony Heinz and Ron Breslow, Scientific Directors
Jeremy Paul and others

5:00
Poster Session with Light Refreshments and Snacks (Posters presented by Nanocenter students, postdocs, faculty, and other researchers).

6:30
Program concludes

 

Abstracts

 

Molecular Junction Transport: Some Vibronic Effects
Mark Ratner
, PhD
Northwestern University

The behavior of molecular transport junctions in the coherent tunneling (Landauer-Imry) regime is rapidly becoming understood, due in no small part to the members of the CIAR team. But vibronic effects characterize molecules, and understanding how they act in such junctions is a significant issue. This talk will deal with the role of both weak and strong vibronic interactions in molecular junctions. The weak mixing appears in IETS spectra, and can be handled by perturbation theory in the coherent tunneling limit. But strong vibronic interaction requires a more elaborate analysis. Hysteresis and switching behaviors will be discussed.

Understanding Conductance in Well-Defined Single Molecule Circuits
Mark Hybertsen
, PhD
Center for Functional Nanomaterials at Brookhaven National Laboratories
Latha Venkataraman, PhD
Columbia University NSEC

We recently discovered that the conductance of single molecule junctions formed using gold-amine linkages can be measured reliably and reproducibly. The conductance of approximately 40 different amine linked molecules has been measured revealing systematic trends with length, conformation, conjugation and substituent. The first part of this talk will present the experimental approach and the systematic results. The second part will address our understanding of the electronic properties of the gold-amine link that lead to reproducible junction conductance.

Nano Carbon: From Molecular Transistors to Atomic Drumheads
Paul L. McEuen
, PhD
Laboratory of Atomic and Solid State Physics, Cornell University

Carbon atoms form the basis of life, and they are increasingly becoming the backbone of nanoscience. From buckyballs to nanotubes to graphene sheets, nano carbon is revolutionizing our ability to construct devices and understand matter at the nanoscale. In this talk I will discuss a few recent examples, from nanotube single-electron transistors to two of the world's smallest musical instruments, the nanotube guitar and the graphene atomic drum.

Reaction Chemistry Meets Lithography
Colin Nuckolls
, PhD
Columbia University

This talk will focus on using reaction chemistry and self-assembly as a means to construct nanoscale electrical devices. Through these studies we are developing molecular-based materials that forge a connection (both literally and figuratively) between the ultra-fine lithographic tools of the semiconductor i

 

Speakers: Paul McEuen, Cornell University; Mark Ratner, Northwestern University; Colin Nuckolls, Columbia University; Latha Venkataraman, Columbia University; Mark Hybertsen, Brookhaven National Laboratories