High-temperature stable plasmonic gold gallia nanocomposites for gas sensing

Chemically engineered plasmonic Au–gallium oxide nanocomposites for harsh environment applications: an investigation into thermal and chemical robustness

“…The time period of two hours was chosen based on a previous study by us, which reports that extending this time period beyond two hours did not result in significant changes in the morphologies of similar composites of Au and Ga 2 O 3 , which were explored for their prospects as high-temperature sensing materials. 39 This permanence in change was observed for Au nanorods in this previous study, and considering that Au has a lower softening and melting point than Ga 2 O 3 and that even its change in morphology was stabilized at this temperature for this time period, we postulated that similar changes to Ga 2 O 3 will also be stabilized within this time period, if they occur at all to begin with. 3.4.1.…”