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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.

. 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
. 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

B. Jakoby

An Alternative Path to Foster's Reactance Theorem and Its Relation to Narrow-Band Equivalent Circuits

M.A. Hintermüller, C. Offenzeller, M. Knoll, W. Hilber, B. Jakoby

Embedded, screen printed transducers in bulk polymer microfluidic devices

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