69 The gas-sensing characteristics of all sensors at 100 ppm NO 2 level in dry air are shown in Figure 6 c at various temperatures. It can be revealed that at an operating temperature of 125 °C, the Pd-CuO-3 sensor device exhibits an increasing trend in sensor response.
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<i>Ocimum sanctum</i> Leaf Extract-Assisted Green Synthesis of Pd-Doped CuO Nanoparticles for Highly Sensitive and Selective NO<sub>2</sub> Gas Sensors.
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