Abstract
A method of manufacturing nano-composite material film is disclosed. It comprises a substrate; a plurality of electrodes provided on the substrate in an array; and a gas sensing film covering on each electrode. The gas sensing film is composed of nano-conductive film and peptide molecular film. Accordingly, the nano-conductive film and peptide molecular film can be manufactured to dual layered sensing films, and covered on each electrode of substrate for sensing various gases. Better selectivity, manipulability and reproducibility can be achieved by improving the inspection range of a chemical resistor gas sensor effectively, decreasing chemical manufacturing process, reducing manufacturing time, and raising sensitivity.