Low-voltage-driven flexible light-emitting device and preparation method and application thereof

The invention provides a low-voltage-driven flexible light-emitting device and a preparation method and application thereof. The preparation method comprises the following steps of: (1) spraying a silver nanowire solution on hydrophobic glass, and drying to complete the setting of a conductive silver layer; (2) spin-coating a substrate solution on the surface of the conductive silver layer obtained in the step (1), and drying to complete the arrangement of a flexible substrate layer; (3) spin-coating luminous layer slurry on the surface of the conductive silver layer relative to the flexible substrate layer, and performing heat treatment to obtain a luminous layer; and (4) spraying the silver nanowire solution on the surface of the luminescent layer obtained in the step (3), and drying to complete the setting of the conductive silver layer. According to the flexible light-emitting device prepared by the invention, the driving voltage can be greatly reduced under the condition of the same light-emitting bright