Flexible solar cell and method of producing the same

A cylindrical flexible solar cell including:

• a cylindrical flexible waveguide;
• a flexible conductive transparent electrode disposed adjacent to the waveguide;
• a first flexible light absorbing layer that is disposed around the flexible conductive transparent electrode and has a sensitizer adsorbed thereon;
• a flexible counter electrode disposed around the first flexible light absorbing layer;
• a second flexible light absorbing layer that is disposed around the counter electrode and has a sensitizer adsorbed thereon;
• a conductive transparent electrode layer disposed around the second flexible light absorbing layer;
• and
• flexible electrolyte layers respectively interposed between the first and second light absorbing layers and the counter electrode.

A method of producing a cylindrical flexible solar cell comprising:

• coating a cylindrical flexible waveguide with a material to form a counter electrode;
• coating the counter electrode with a flexible electrolyte layer;
• coating the flexible electrolyte layer with a light absorbing layer having a sensitizer adsorbed thereon;
• and
• subjecting the light absorbing layer to heat treatment after the coating and then coating the light absorbing layer with a conductive flexible transparent substrate.

A method of producing a flexible solar cell comprising:

• coating a cylindrical flexible waveguide with a first conductive flexible transparent substrate;
• coating the conductive, flexible transparent substrate with a first light absorbing layer and subjecting the first light absorbing layer to heat treatment;
• adsorbing a sensitizer onto the first light absorbing layer;
• coating the sensitizer with an electrolyte layer and then coating the electrolyte layer with a flexible counter electrode;
• coating the counter electrode with a flexible electrolyte layer;
• coating the flexible electrolyte layer with a second light absorbing layer having a sensitizer adsorbed thereon;
• and
• subjecting the second light absorbing layer to heat treatment after the coating of the flexible electrolyte layer and then coating the second light absorbing layer with a second conductive flexible transparent substrate.

A method of producing a cylindrical flexible solar cell comprising:

• preparing slurries for conductive flexible transparent substrates, flexible light absorbing layers, sensitizers, flexible electrolyte layers, a flexible counter electrode and a flexible waveguide, respectively;
• arranging slurry discharge nozzles in order for a conductive flexible transparent substrate, a flexible light absorbing layer, a sensitizer, a flexible electrolyte layer, a flexible counter electrode, and a flexible waveguide;
• or in order for a conductive flexible transparent substrate, a first flexible light absorbing layer, a first sensitizer, a first flexible electrolyte layer, a flexible counter electrode, a second flexible electrolyte layer, a second sensitizer, a second flexible light absorbing layer, and a flexible waveguide;
• and
• discharging the slurries through an electrospinning apparatus to form a wire and;
• subjecting the wire to heat treatment.