▎ 摘　　要

NOVELTY - Self-powered gas sensor comprises a power generation module, a semiconductor electrode with reduced graphene oxide doped indium oxide material reduced graphene oxide/indium oxide as electrode material, an external test circuit, and power generation module used for gas sensing while being responsible for power supply. The power generation module comprises a rectangular porous polymer film and a PET film with a metal layer, where reduced graphene oxide/indium oxide electrode layer is spin-coated and deposited on one side surface of porous polymer film, PET film with metal layer are fixed together with Kapton tape to make reduced graphene oxide/indium oxide electrode layer opposite to metal electrode layer on the PET film, metal layer of metal-coated PET film and surface layer of reduced graphene oxide/indium oxide electrode layer are both connected to external test circuit through leads, and lead wire is tightly combined with electrode layer and metal layer through conductive glue. USE - As self-powered gas sensor. ADVANTAGE - The self-powered gas sensor realizes the qualitative and quantitative detection of variety of gases that are self-powered and gas detection and early warning without an external power supply for long time. DETAILED DESCRIPTION - Self-powered gas sensor using reduced graphene oxide/indium oxide as electrode material comprising a power generation module, a semiconductor electrode with reduced graphene oxide doped indium oxide material reduced graphene oxide/indium oxide as the electrode material, an external test circuit, and power generation module used for gas sensing while being responsible for power supply. The power generation module comprises a rectangular porous polymer film and a PET film with a metal layer on one side of the rectangular surface, where the length of the porous polymer film and the PET film are equal, the width of the PET film is greater than that of the porous polymer film, the reduced graphene oxide/indium oxide electrode layer is spin-coated and deposited on one side surface of the porous polymer film, the PET film with the metal layer are fixed together with Kapton tape to make the reduced graphene oxide/indium oxide electrode layer opposite to the metal electrode layer on the PET film, the edges of the two rectangular films with the same length are overlapped, the PET layer is naturally rolled up or bent into a curved surface due to the limitation of the width and the tape, and mechanically assembled into a power generation module with a certain arc, the metal layer of the metal-coated PET film and the surface layer of the reduced graphene oxide/indium oxide electrode layer are both connected to external test circuit through the leads set thereon, and the lead wire is tightly combined with the electrode layer and the metal layer through the conductive glue.