Charge transport in molecular junctions and microfluidic devices

• Author / Creator

  Olson, Steven

• 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.

• Subjects / Keywords

  • Molecular junctions
  • Microfluidics
  • Charge transport

• Graduation date

  Fall 2010

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R3RQ7K

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.