Carbon monoxide sensing with plasmonically functionalized thin films.
(A) Transmission electron microscope image of a Au-CuO nanocomposite film. (B) Relative CO-induced absorbance change of the Au-CuO composite film. (C) Correlation between CO concentration and relative absorbance change (A–C reprinted from , with permission from Elsevier). (D) Schematic of a setup used for high temperature CO sensing experiments. (E) Sensing signal response curve of the Au-YSZ nanocomposite film at 500°C. (F) Absorbance of the Au-YSZ nanocomposite film in N2 and air atmosphere at 500°C (D–F adapted with permission from . Copyright 2006 American Chemical Society).