Polyaniline microstructure as well as preparation method and application thereof

The invention discloses a polyaniline microstructure as well as a preparation method and application thereof. The DMPL optical system is adopted to carry out surface projection exposure on the polyaniline precursor solution, personalized pattern customization of the polyaniline microstructure is achieved, pattern design can be adjusted according to application requirements, other reagents do not need to be added in the process, the variety of used raw materials is few, the green development requirement is met, operation is easy and convenient, technological parameters are easy to adjust, and the method is suitable for industrial production. The preparation method has the advantages that the preparation method is simple, the feasibility is good, the formed polyaniline microstructure is high in individuation, flexible in structural design, smaller in size and capable of being accurately controlled, the requirement for material selection of substrate materials is low, the method can be applied to hard substrate