▎ 摘　　要

NOVELTY - vertical response type gas sensor of the utility model claims a based on the three-dimensional porous graphene thin film includes a first electrode, a second electrode, and a three-dimensional porous graphene super-thin film located between the first electrode and the second electrode, the first electrode, vertical response type gas sensor and the second electrode have the same size of the utility model claims a three-dimensional porous graphene thin film firstly uses sensing membrane is set between two electrodes of the sandwich structure, overcomes the defect that the existing technology needs the same technical prejudice of the plane electrode; sensor contact with gas molecules is very good, which has excellent detection capability, high sensitivity to DMMP gas molecule has. the preparation method is with simple process and suitability for mass production of the sensor.