L-Cysteine Functionalized Al_0.18Ga_0.82N/GaN High Electron Mobility Transistor Sensor for Copper Ion Detection

AlGaN/GaN high electron mobility transistor for various sensing applications: A review

“…This decrease in current is attributed to Cu 2+ trapping and the formation of complexes that reduces the conductivity and 2DEG concentration of channel carriers and thus current. The LOD of the proposed sensor platform is 0.01 mg/L which is well beyond the WHO recommended Cu 2+ limit (2 mg/L) in drinking water [161].…”