F. L. Khir, M. Myers, A. Podolska, M. Baker, B. Nener, G. Parish
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Optimisation studies for AlGaN/GaN-based nitrate sensors
AlGaN/GaN HEMT (high electron mobility transistor) sensors have been coated with a nitrate selective polymer membrane enabling nitrate ion sensing in water. In this study we optimise the thickness of the nitrate selective membrane to maximise sensor performance (sensitivity).