Abstract
AbstractNanograined zinc oxide (ZnO) thin films are synthesized by successive ionic layer adsorption and reaction (SILAR) method. The structural analysis reveals synthesized films show phase pure ZnO with wurtzite crystal structure. The deposited ZnO thin films show interconnected nanograins with porous morphology. The ZnO films exposes liquefied petroleum gas (LPG) and shows gas response of 18% under the exposure of 2600 ppm LPG at 673 K. The palladium (Pd) sensitization significantly improves the LPG sensing properties. The Pd sensitization improves gas response up to 80% under exposure of 5200 ppm at 498 K. The response and recovery time are 60 and 50 s, respectively.
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