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Ultrahigh Sensitivity Quartz Crystal Microbalance

Technology Benefits

Order of magnitude sensitivity enhancement

Technology Application

Sensors, humidity, environmental toxins, etc.

Detailed Technology Description

Researchers in UCI’s Department of Physics fabricated nanoporous alumina structures on QCM’s by electrochemically anodizing aluminum electrodes and have shown that these electrodes are very sensitive to the partial pressure of water and thus make excellent, high Q humidity sensors. By applying nanoporous structures as electrodes for QCM’s, using various techniques including evaporation, electrochemistry, spin-coating and selective etching the relative surface area is enhanced without sacrificing Q. The resulting sensors have orders of magnitude greater sensitivity than conventional QCM’s and work with two classes of materials, both condensable fluids (eg humidity sensor) and environmental toxins.

Others

Tech ID/UC Case

20895/2008-166-0

Related Cases

2008-166-0

Country/Region

USA

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