Printable curved-surface perovskite solar cell and preparation method thereof

A method for preparing a printable curved-surface perovskite solar cell, wherein the printable curved-surface perovskite solar cell comprises a curved-surface conductive substrate, a porous electron transport layer, a porous insulation layer, a porous back electrode layer and a perovskite filler;

• the curved-surface conductive substrate comprises a curved-surface transparent substrate and a conductive layer deposited on the curved-surface transparent substrate;
• the porous electron transport layer, the porous insulation layer and the porous back electrode layer are sequentially deposited on the conductive layer from bottom to top;
• and the perovskite filler is filled in pores of the porous electron transport layer, the porous insulation layer and the porous back electrode layer;
• and
• the method comprises:
• (1) etching a cleaned curved-surface conductive substrate through laser to form an etching line P1;
• (2) applying a porous electron transport layer slurry onto a conductive layer of the curved surface conductive substrate with the etching line P1, applying a first hot melt adhesive onto the porous electron transport layer slurry to form a first hot melt adhesive film, and peeling off the first hot melt adhesive film to obtain a first preform with a porous electron transport layer;
• (3) applying a porous insulation layer slurry onto the porous electron transport layer of the first preform, applying a second hot melt adhesive onto the porous insulation layer slurry to form a second hot melt adhesive film, and peeling off the second hot melt adhesive film to obtain a second preform with a porous insulation layer;
• (4) applying a porous back electrode layer slurry onto the porous insulation layer of the second preform to form a porous back electrode layer, thereby to obtain a third preform with the porous back electrode layer;
• and
• (5) applying a perovskite precursor slurry onto the porous back electrode layer of the third preform in such a manner that the perovskite precursor slurry is filled in pores of the porous electron transport layer, the porous insulation layer and the porous back electrode layer, to obtain the printable curved-surface perovskite solar cell.