The invention relates to a flexible
polymer solar battery with a wrinkling structure, comprising a transparent
electrode, a cavity transporting layer, photo-activation layer materials, an
electron transporting layer and a
metal electrode, wherein the photo-activation layer materials comprise a donor material and an
acceptor material; the transparent
electrode is made of
graphene / PEDOT(poly(3,4-ethylenedioxythiophene):PSS(
polystyrene sulfonate) / PET(
polyethylene terephthalate)
composite film; the hole transporting layer is made of a PEDOT:PSS film; an
electron donor is made of P3HT; an
electron acceptor is made of
graphene / PEDOT:PSS composite particles; the
electron transporting layer is made of a
zinc-
oxide film; and the
metal electrode is made is silver. The flexible
polymer solar battery is prepared by the following steps of: adopting an ink-jet printer to print a
graphene / PEDOT:PSS transparent conducting layer, the hole transporting layer, active-layer materials, the
electron transporting layer and
metal slurry on a pre-stretched PET film in sequence, carrying out
drying treatment on the materials under the temperature being 50-100 DEG C, then removing pre-stretching force and obtaining the flexible
polymer solar battery with the wrinkling structure. The flexible polymer solar battery has the advantages that the
sunlight utilization rate is high, the
photoelectric conversion efficiency is high, the preparation process is simple and convenient, the
mechanical stability is good, large-scale industrial preparation can be realized and the application prospect is wide.