Au-WO3 Nanocomposite Coatings for Localized Surface Plasmon Resonance Sensing.

ABSTRACT: Localized surface plasmon resonance (LSPR) gas sensors are gaining increasing importance due to their unique tuneable functional properties. Au-WO3-x nanocomposite coatings, in particular, can be outstandingly sensitive to many different gases. However, a proper understanding of their optical properties and the way in which those properties are correlated to their structure/microstructure, is still needed. In this work, Au-WO3 nanocomposite coatings, with Au contents between 0-11 atomic percent, were grown using reactive magnetron co-sputtering technique and were characterized concerning their optical response. The precipitation of Au nanoparticles in the oxide matrix was promoted through thermal annealing treatments until 500 °C. Along with the Au nanoparticles' morphological changes, the

SUBMITTER: Figueiredo NM 

PROVIDER: S-EPMC6981964 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature