Synthesis and Formation of Plasmonic SnO2@Au (Purple of Cassius) Nanostructures Using Reverse Micelle Templating for Chemiresistive Gas Sensing Applications

This study focusses on the synthesis of SnO2@Au nanostructures using a reverse micelle templating approach. The presence of Au would act to make the Sn O2 @Au nanostructures plasmonic, improve charge transfer and overall conductivity, and would form a Schottky junction. The polymer composition and Au/Sn ratios were varied to optimize the nanostructures, and the LSPR peaks were measured using UV-Vis spectroscopy. The results are used in optimizing the properties of Sn O2@Au nanostructures for effective chemiresistive gas sensing.