1 / 6

Dielectric Spectroscopy in a Variable Nanometer Gap

Prof. Alexander H. Slocum and Hongshen Ma. Dielectric Spectroscopy in a Variable Nanometer Gap. Develop an instrument to confine fluids in nanometer-thin films Study their properties using electrochemical impedance measurements. Hypothesis.

telma
Télécharger la présentation

Dielectric Spectroscopy in a Variable Nanometer Gap

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Prof. Alexander H. Slocum and Hongshen Ma Dielectric Spectroscopy in a Variable Nanometer Gap • Develop an instrument to confine fluids in nanometer-thin films • Study their properties using electrochemical impedance measurements Hypothesis • Take advantage of nanoscale effects of fluids to create a new type of electrochemical sensor • Complementary instrument to NMR, DLS, UV-Vis, atomic absorption.

  2. Aggrecan monomer 50nm Applications • Studying the electrokinetic properties of large molecules • Prof. Al Grodzinsky: aggrecan • Hydrodynamic permeability • Rigidity of the aggrecan core • Low-cost blood osmolality meter • Battery and supercapacitor research • Low-cost drinking water monitor • Monitoring industrial chemicals (low conductivity fluids, e.g. oils and cryogenic fluids)

  3. Flat versus Spherical Electrodes • Difficult to maintain parallelism • Electrodes always tangent Si wafer, Ra = 1nm Tungsten carbide or Si-Nitride ball, Ra = 4nm, ~$6 each

  4. Disposable Fluid Cell Cartridge • Si-Nitride ball, 60nm Pt film *Patent Pending

  5. Flexure Mechanism *Patent Pending

  6. Results

More Related