Figure 31. Measurement signals at different pH and the analyzation of the VT and gm of the device before the PEC oxidation (a) The ID-VD curves of the device without a reference electrode at pH 4, pH 7 and pH 10, respectively (b) The transfer characteristic curve (ID-VG) and gm-VG curve of the device in deionized water when VD was 0.5 V [84]

From

Review of GaN Nanowires Based Sensors

Ahmed M. Nahhas

American Journal of Nanomaterials. 2020, 8(1), 32-47 doi:10.12691/ajn-8-1-4