Fig. 6From: In2O3 Nanotower Hydrogen Gas Sensors Based on Both Schottky Junction and Thermoelectronic Emission a The steady-state resistance responses of the sensor during exposure to increasing H2 concentrations (between 2 and 1000 ppm) under an optimal operating temperature of 240 °C. b The corresponding steady-state conductance of the sensor as a function of the H2 concentrationBack to article page