▎ 摘　　要

NOVELTY - Method for preparing a flexible electrode, involves (a) assembling a polyimide thin film under the UV light source, (b) using a dip coating method for film assembling the polyimide thin film to obtain the flexible electrode, where the coating of the dip coating process is a hydrophobic conductive nanoparticle aqueous solution, and (c) using the film assembling method to prepare a thin film. USE - Preparation method of flexible electrode used in flexible electronic device (all claimed). Uses include but are not limited to radio frequency identification, flexible display, organic electroluminescent display and illumination, chemical and biosensor, flexible photovoltaic, flexible logic and storage, flexible battery and wearable device. ADVANTAGE - The method utilizes hydrophobic conductive nanoparticles and polyimide that have high hydrophobicity, more easily combined with polyimides, reaching the effect of self-assembly, adjusts the thickness of the coating film by adjusting the dip coating time, without using organic solvent and tackifier, more green and environment-friendly, and provides the prepared flexible electrode that has self-repairing function under the action of water solution and UV lamp. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of dip coating device. Polyimide film (1) Water (2) UV light source (3) Hydrophobic conductive nanoparticles (4) Self-assembled hydrophobic conductive nano-particles (5)