Modeling and simulation of nanoelectronic (bio) sensor devices, with applications to Bio-FETs and novel high-frequency impedance spectroscopy techniques

Orateur : Luca SELMI (University of Udine, Italy)

The seminar introduces the field and the needs for nanoelect ronic (bio)sensor device modeling and simulation. Two case studies of sensor modeling, simulation and characterization are examined in detail : nanowire Ion-Sensitive Field Effect Transistors (ISFETs) and novel nanocapacitor arrays for high-frequency impedance spectroscopy. In particular, based on accurate analytical models and numerical simulation tools, we describe the operating principle and the potential of high-frequency impedance spectroscopy techniques for the detection of nano- and micro-particles and cells beyond the Debye screening limit in a physiological solution environment. Recent experimental results confirming this new sensing principle are presented to confirm the theory and calibrate the models.

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