Although it has been stressed that the morphology and structure of SnO2 nanomaterials significantly affect their gas sensing properties, the major structural influence parameter is not yet clear and still needs to be investigated for the further development of high-performent gas sensing devices. Additionally, most gas sensors based on metal oxide semiconductors have shown a maximum response at operating temperatures above 200 องศาเซลเซียส, resulting in high power consumption and complexities in integration. These results may reduce the sensor life and limit the applications of these gas sensors that have high sensing performance at low operating temperatures.
In this study, SnO2 nanomaterials with different nanofilm, nanorod, and nanowire morphologies were fabricated by sputtering and thermal evaporation methods. The microstrutural chatacterizations methods. The microstructural characterizations of X-ray diffraction (XRD), field eission scanning electron microscopy (FESEM), and the Brunauer-Emmett-Teller(BET) method. The hydrogen sensing properties of gas sensors based on these SnO2 nanomaterials were investigated with respect to their response, operating temperature, reversibility, and hydrogen concentration.
Although it has been stressed that the morphology and structure of SnO2 nanomaterials significantly affect their gas sensing properties, the major structural influence parameter is not yet clear and still needs to be investigated for the further development of high-performent gas sensing devices. Additionally, most gas sensors based on metal oxide semiconductors have shown a maximum response at operating temperatures above 200 องศาเซลเซียส, resulting in high power consumption and complexities in integration. These results may reduce the sensor life and limit the applications of these gas sensors that have high sensing performance at low operating temperatures. In this study, SnO2 nanomaterials with different nanofilm, nanorod, and nanowire morphologies were fabricated by sputtering and thermal evaporation methods. The microstrutural chatacterizations methods. The microstructural characterizations of X-ray diffraction (XRD), field eission scanning electron microscopy (FESEM), and the Brunauer-Emmett-Teller(BET) method. The hydrogen sensing properties of gas sensors based on these SnO2 nanomaterials were investigated with respect to their response, operating temperature, reversibility, and hydrogen concentration.
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