Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 36, 2015
Previous Article Next Article

A scanning tunneling microscope break junction method with continuous bias modulation

Author affiliations

Abstract

Single molecule conductance measurements on 1,8-octanedithiol were performed using the scanning tunneling microscope break junction method with an externally controlled modulation of the bias voltage. Application of an AC voltage is shown to improve the signal to noise ratio of low current (low conductance) measurements as compared to the DC bias method. The experimental results show that the current response of the molecule(s) trapped in the junction and the solvent media to the bias modulation can be qualitatively different. A model RC circuit which accommodates both the molecule and the solvent is proposed to analyze the data and extract a conductance for the molecule.

Graphical abstract: A scanning tunneling microscope break junction method with continuous bias modulation

Back to tab navigation

Supplementary files

Article information


Submitted
10 Jul 2015
Accepted
11 Aug 2015
First published
19 Aug 2015

Nanoscale, 2015,7, 14965-14973
Article type
Paper
Author version available

A scanning tunneling microscope break junction method with continuous bias modulation

E. Beall, X. Yin, D. H. Waldeck and E. Wierzbinski, Nanoscale, 2015, 7, 14965
DOI: 10.1039/C5NR04649A

Social activity

Search articles by author

Spotlight

Advertisements