Document Detail

Electronic and optical properties of electromigrated molecular junctions.
MedLine Citation:
PMID:  21694425     Owner:  NLM     Status:  In-Data-Review    
Electromigrated nanoscale junctions have proven very useful for studying electronic transport at the single-molecule scale. However, confirming that conduction is through precisely the molecule of interest and not some contaminant or metal nanoparticle has remained a persistent challenge, typically requiring a statistical analysis of many devices. We review how transport mechanisms in both electronic and optical measurements can be used to infer information about the nanoscale junction configuration. The electronic response to optical excitation is particularly revealing. We briefly discuss surface-enhanced Raman spectroscopy on such junctions, and present new results showing that currents due to optical rectification can provide a means of estimating the local electric field at the junction due to illumination.
D R Ward; G D Scott; Z K Keane; N J Halas; D Natelson
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Publication Detail:
Type:  Journal Article     Date:  2008-08-26
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  20     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2011-06-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  374118     Citation Subset:  -    
Department of Physics and Astronomy, Rice University, Houston, TX 77005, USA.
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