Conference Paper

Microfabricated Gate-Modulated Electrochemical Ion Spectroscopy Sensor

Case Western Reserve Univ., Cleveland
DOI: 10.1109/SENSOR.2007.4300631 Conference: Solid-State Sensors, Actuators and Microsystems Conference, 2007. TRANSDUCERS 2007. International
Source: IEEE Xplore

ABSTRACT Flow-through field effect transistor structures are utilized as tunable, electrochemical ion- selective sensors to analyze the ionic content of channel fluids from drain-source current measurements and gate conductance spectroscopy. Compared to ion-selective electrodes in a flowFET its gate region acts as a programmable membrane determined by the gate potential. DC measurement results using aqueous solutions of NaCl and CuSO4 in the 10-4-10-7 molar range are discussed.

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May 20, 2014