JCE Online Journal of Chemical Education
 | Subscriptions  | Software Orders  | Support  | Contributors  | Advertisers  | 

JCE Print
   Current Issue
 Previous Issues
 Supplements
 Search JCE Index

JCE Digital Library
   DigiDemos
 QBank
 SymMath
 WebWare

JCE Software
   Latest Releases
 Software & Video
 Downloads
 Support

Only@JCE Online
   JCE Online Store
 JCE HS CLIC
 JCE Discussion Forums
   Biographical Snapshots
 ChemEd Resource Shelf
 Featured Molecules
 Hal's Picks
 Project Chemlab
 Reviewed WWW Sites
 "Web-Ed" Articles

About JCE
   Features
 Publications
 Operations
 Outreach
 Contact Us


  Home > JCE Print > Journal of Chemical Education > Issues > 2005  > May  >
Symposium: Chemistry at the Nanometer Scale
Electron Tunneling, a Quantum Probe for the Quantum World of Nanotechnology
K. W. Hipps and L. Scudiero
Department of Chemistry and Materials Science Program, Washington State University, Pullman, WA 99164-4630
Cover
May 2005
Vol. 82 No. 5
p. 704
Abstract
Key events and concepts in the development of tunneling spectroscopy, especially in the context of the scanning tunneling microscope, are reviewed. Focus is placed on the single-molecule spectroscopy of adsorbates on surfaces. Examples of molecular images with sub-molecular resolution are provided. Molecular electronic spectra obtained in the STM are displayed and contrasted with results from techniques requiring large (>109) numbers of molecules. Correlation between the nanoscale method of orbital-mediated tunneling spectroscopy (OMTS) and the microscale methods of ultraviolet photoelectron spectra (UPS) and electrochemical oxidation and reduction potentials will be made. Mapping of electron-transport paths through a molecule as a function of electron energy will be demonstrated. Specific examples of STM based OMTS will be drawn from porphyrins and phthalocyanines on Au(111).
More Information
*  Citation
 Hipps, K. W.; Scudiero, L. J. Chem. Educ. 2005 82 704.
*  Keywords
 Electron Transport; Excited States / Energy Transfer; Materials Science; Molecular Properties / Structure; Nanotechnology; Physical Chemistry; Surface Science
*  History
 Created:
Last Updated:		 March 28, 2005
April 15, 2005
<< Previous Article Table of Contents Next Article >>
  Home > JCE Print > Journal of Chemical Education > Issues > 2005 > May > Page 704


Subscriptions
 Subscription Info
 Order Forms

JCE HS CLIC

Our Secondary School editors work hard to distill all the JCE materials to produce a fraction of particular interest to high school teachers. We call it CLIC.
 JCE HS CLIC

Contributions Welcome
JCE welcomes your submission
 Contributors' Corner

Advertisers
In recent years we have worked hard to better match our advertisers with our readers. When shopping for chemistry education materials, visit our advertisers' WWW sites first.
 Recent Advertisers

Be An Ambassador
Take JCE along on your outreach missions. Copies of the Journal, guest access to JCE Online, our publications catalog, and more are available for your participants.
 Outreach with JCE

Comments to
jceonline@chem.wisc.edu		 Copyright © Division of Chemical Education, Inc., American Chemical Society.
All rights reserved.