Resistance-type flexible pressure sensor based on laser-induced graphene and preparation method thereof

The invention relates to the field of pressure sensors, in particular to a resistive flexible pressure sensor based on laser-induced graphene and a preparation method of the resistive flexible pressure sensor, and the applied pressure can be measured according to the change of resistance. On the basis of a graphene laser engraving technology, graphene is formed on the surfaces of two substrate materials through laser ablation, and one graphene microstructure is torn off from the substrate and attached to the graphene microstructure on the surface of the other substrate through an adhesive tape. The resistive flexible pressure sensor is prepared according to the principle that contact points of the upper graphene and the lower graphene and the contact area of the adjacent graphene layers are changed when the pressure sensor is pressed. The pressure sensor has the advantages of being high in sensitivity, rapid in response, simple in preparation process and low in cost, can respond to the pressure intensity with