Fig. 4From: Detection of pH and Enzyme-Free H2O2 Sensing Mechanism by Using GdO x Membrane in Electrolyte-Insulator-Semiconductor Structure a C-V characteristics of the S1, S2, and S3 sensors are shown. b Drift rate characteristics of the S1, S2, and S3 sensors. c Time-dependent response of H2O2 and d reference voltage shift vs. H2O2 concentration for all sensorsBack to article page