Nanotech 2005 Vol. 2
Nanotech 2005 Vol. 2
Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 2

Characterization Tools and Microscopy Chapter 11

High Resolution Mapping of Compositional Differences at Electrode Interfaces by Electric Force Microscopy

Authors: G.A. Edwards, J.D. Driskell, A.J. Bergren, R.J. Lipert and M.D. Porter

Affilation: Ames Laboratory - U.S. DOE, United States

Pages: 722 - 725

Keywords: electric force microscopy, monolayer, electrode surface

Benzyl mercaptan-derived monolayers (X-C6H4-CH2-SH) with various substituents are interrogated on a smooth gold substrate by Electric Force Microscopy. Plots of phase shift vs. dc bias voltage are presented. The basis for the expected two-dimensional phase based image contrast is derived from these plots. The images show the EFM has sufficient contrast to function as a compositional mapping methodology for patterns of monomolecular films. The imaging mechanism is examined by utilizing simple parallel place capacitor models and compared to the resulting plots of phase shift vs. applied voltage.

ISBN: 0-9767985-1-4
Pages: 808
Hardcopy: $109.95