▎ 摘　　要

NOVELTY - The gas detector has a flexible electrode layer (20) that is a reduced graphene oxide. A material of a detection layer (30) is a reduced graphene oxide-nano metal oxide composite material. The flexible electrode layer is provided with several channels (21). The rGO-MON is arranged in the channels. A gas channel is arranged on the surface of a gas detector portion, is movably arranged on the surface of the detector and that is made of different materials. USE - Thin film gas detector. ADVANTAGE - The signal changes of the detector during detection formed an amplification effect by designing multiple channels. The detection sensitivity of the detector is improved. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the thin film gas detector. Flexible substrate (1) Flexible electrode layer (20) Channel (21) Detection laye (30)