Surface acoustic wave sensor: Response of organometallic polymeric membranes to hydroxylated molecules

A new type of gas sensor based on metal containing polymers [poly-(bistributyl-phosphine), metal-diethynylbiphenyl] deposited in thin film form by spinner coating technique along the propagation path of an acoustic wave, is described. The sensor device is an acoustic delay line that is directly exposed to the influence of external perturbations that cause variations in the phase velocity of the surface acoustic wave (SAW).