Ion versus pH sensitivity of ungated AlGaN/GaN heterostructure-based devices

We have investigated the pH and ion sensitivity of AlGaN/GaN heterostructure devices; these devices are sensitive to the ion concentration rather than to the pH of the solution. Sheet resistance as a function of pH for calibrated pH solutions and dilute NaOH, HCl, KOH, and NaCl showed an increase as...

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Bibliographic Details
Main Authors: Podolska, Anna, Kocan, M., Garces Cabezas, A., Wilson, T., Umana-Membreno, G., Nener, B., Parish, G., Keller, S., Mishra, U.
Format: Journal Article
Published: American Institute of Physics 2010
Online Access:http://hdl.handle.net/20.500.11937/11642