GAS SENSOR AND METHOD FOR MANUFACTURING GAS SENSOR

The present invention relates to a gas sensor and a gas sensor manufacturing method and, more specifically, to a gas sensor made of one among a metallic oxide and a conductive polymer; and a gas sensor manufacturing method. The gas sensor manufacturing method according to the present invention includes a first step of forming a metallic oxide structure having a plurality of nanoholes; a second step of growing a nanowire by spreading one material among a metal, a metallic oxide, and a conductive polymer on the metallic oxide structure; a third step of molding the front surface of the metallic oxide structure generated at the second step with an insulating material; a fourth step of cutting the metallic oxide structure generated at the third step in the longitudinal direction of the nanowire; a fifth step of processing the nanowire to be exposed to the cross-sectional surface of the metallic oxide structure cut at the fourth step; and a sixth step of connecting an external electrode to the nanowire which is expose-processed at the fifth step. The gas sensor and the gas sensor manufacturing method of the present invention are simple and need little costs in comparison with an existing gas sensor manufacturing method and enable mass production to be advantageous to industrialization.