A new non-aqueous sol-gel process has been implemented for the preparation of SnO2- and In2O3-nanostructured oxides. Thick films of these nanopowders were tested in the monitoring of trace level of both oxidizing and reducing gas. These devices have shown enhanced performances respect to conventional sensors with linearity in a wide range of concentration, lower operating temperature and fast dynamic.
1 Jan 2008
Sensors And Microsystems