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Charge transport in molecular junctions and microfluidic devices Open Access


Other title
molecular junctions
charge transport
Type of item
Degree grantor
University of Alberta
Author or creator
Olson, Steven
Supervisor and department
Freeman, Mark (Physics)
Examining committee member and department
Richard McCreery (Chemistry)
Frank Marsiglio (Physics)
Richard Sydora (Physics)
Department of Physics

Date accepted
Graduation date
Master of Science
Degree level
Electro-transmittance of molecular junctions was characterized electrically and studied optically at 410nm and 532nm. Between 1kHz and 100kHz there was no qualitative difference between the control samples and the molecular junction samples, however there were difficulties with reproducibility of the quantitative behaviour, so no hard conclusions could be drawn. A microfluidic capacitor device was designed and fabricated to study the electrical double layer, using standard microfabrication techniques. A complimentary flux corrected transport simulation was written using the same experimental geometry and the results of this study found qualitative agreement between the simulation and experiment. The experiment produced results about the concentration dependence of the double layer formation time which allows an estimate of the required frequency of an AC electrical signal for which the electrical double layer doesn’t have time to form, and its effects can be ignored.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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