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The development of new sensors requires a suite of high precision equipment to monitor the behaviour of the detector material under practical conditions. Some of the polymeric detectors we have worked on include polyester-amides and hydrogels.

autolab

Impedance (Dielectric) Spectroscopy can be used to monitor the porosity, swelling, de-lamination of coatings, bulk conductivity and, of course, dielectric properties of materials in the form of thin films.

networkanalyzer

Quartz crystal microbalance can be used in conjunction with impedance spectroscopy to provide real-time information of dissolution or uptake of material by polymer films in solution or in the gas phase.

In addition, the visco-elastic properties of a polymer film can be monitored using quartz crystal impedance measurements.

spim

Impedance imaging has the potential to work at Ám scales, monitoring local dielectric properties and swelling of polymer films. A femtosecond laser allows two-photon experiments to be carried out.

gassensor

We also have an interest in potentiometric gas sensors, and have equipment for automated gas mixing and monitoring the response of thin films to gasses using potential and impedance measurements.

(Right- foreground, detector cell, background, three mass flow controllers for gas delivery).


 | Last modified on 12/11/17 |