Please use this identifier to cite or link to this item:
|Title:||Effect of Surrounding Medium on Resistance of a Molecular Monolayer Junction|
|Citation:||Gosvami, N.N., Sinha, S.K., Srinivasan, M.P., O'Shea, S.J. (2008-01-10). Effect of Surrounding Medium on Resistance of a Molecular Monolayer Junction. Journal of Physical Chemistry C 112 (1) : 297-302. ScholarBank@NUS Repository. https://doi.org/10.1021/jp075890k|
|Abstract:||We report a comparative study of charge transport across a n-decanethiol (C10SH) self-assembled monolayer (SAM) on Au(111) using conducting atomic force microscopy (C-AFM). The experiments7 are performed in nonpolar liquids (hexadecane and OMCTS) and ambient air. AFM force measurements in liquid mediums reveal discrete solvation layering close to the SAM interface. The liquid layering between the AFM probe and the SAM surface does not affect the measured contact resistance value, provided all the confined liquid layers are squeezed out of the contact. The contact resistance, however, can vary by orders of magnitude when measured in different mediums. This is mainly governed by the mechanical behavior of the monolayer. Force vs current measurements and contact stiffness measurements using sample modulation AFM show how the mechanical response of the SAM junction varies in the different surrounding mediums and supports the observed variation in measured contact resistance values. © 2008 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry C|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 11, 2018
WEB OF SCIENCETM
checked on Jun 25, 2018
checked on May 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.