Title page for ETD etd-09202005-091031


Type of Document Dissertation
Author Gatin, Marilyn Rose
URN etd-09202005-091031
Title Spectroelectrochemical analysis of self-assembled monolayers on gold
Degree PhD
Department Chemistry
Advisory Committee
Advisor Name Title
Anderson, Mark R. Committee Chair
Graybeal, Jack D. Committee Member
McNair, Harold M. Committee Member
Merola, Joseph S. Committee Member
Taylor, Larry T. Committee Member
Keywords
  • Monomolecular films Analysis
  • Gold Spectra
  • Thin films
  • Spectrum analysis
Date of Defense 1992-07-05
Availability restricted
Abstract

Organic thin films prepared from long-chain organothiols have been self-assembled on gold surfaces and their chemistry and structural properties studied by physical, electrochemical and spectroscopic methods. The mechanism of charge transfer across these organic thin films was of particular interest and was studied by combined spectroscopic and electrochelllical methods. The influences of chain length, terminal functional group I and sol vent on the electrochemical kinetics were studied. Evidence of a kinetic barrier to charge transfer pointed to a charge-diffusion mechanism across the organic thin films. An Infrared Reflection-Absorption Spectroscopy (IRRAS) method was developed to monitor the titration of acid functionalized films. The method compared favorably with the currently-used goniometry method because the IRRAS method was faster, less prone to operator bias, and provided structural information.

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