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Institute for Microelectronics and Microsensors
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Featured Research Results.

T. Mitteramskogler, B. Jakoby, K. Hingerl

A condition for spontaneous capillary flow in open microgrooves

This work deals with the behavior of liquids in open microfluidic channels. By considering the surface energies, we develop a two-dimensional model which predicts when a liquid will fill a microfluidic channel by capillary forces alone. This model makes it possible to determine the behavior of a liquid using only the cross-sectional geometry and the contact angle.

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. Cross-section of a Gaussian microchannel with different liquid levels. The Gibbs energy for each filling level is color-coded.

W. Hilber, H. Enser, M. Knoll, C. Offenzeller, B. Jakoby

Embedded Transducers in Polymeric Coatings on Metallic Substrates
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. Multilayer pyro- and piezo-electric sensor-stack design. From bottom to top: substrate with organic primer coating, bottom electrode, P(VDF-TrFE) functional layer (turquoise), top electrode, organic topcoat . . Demonstration of the pyro- (top) and piezoelectric (bottom) properties of a P(VDFTrFE)-based prototype. The sensor consists of a primer-coated sheet-steel substrate (which in this case serves as the bottom electrode), a P(VDF-TrFE) functional layer (transparent), and a PEDOT:PSS top electrode (bluish)

N. Doppelhammer, N. Pellens, J. Martens, C. Kirschhock, B. Jakoby, E. Reichel

Moving Electrode Impedance Spectroscopy for Accurate Conductivity Measurements of Corrosive Ionic Media
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B. Jakoby

An Alternative Path to Foster's Reactance Theorem and Its Relation to Narrow-Band Equivalent Circuits
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M.A. Hintermüller, C. Offenzeller, M. Knoll, W. Hilber, B. Jakoby

Embedded, screen printed transducers in bulk polymer microfluidic devices
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R. Jannesari, G. Pühringer, B. Jakoby, T. Grille

Design and Analysis of a Slot Photonic Crystal
Waveguide for Highly Sensitive Evanescent Field
Absorption Sensing in Fluids
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