Patent ID: 8247688

Claim:
A fiber photovoltaic device, said fiber photovoltaic device comprising: an optical filament; a first electrode layer coating the optical filament; wherein the first electrode layer is at least partially transparent to electromagnetic radiation; a continuous semiconductive layer deposited above the first electrode layer; wherein the continuous semiconductive layer is in electrical contact with the first electrode layer; wherein the continuous semiconductive layer absorbs electromagnetic radiation and turns the electromagnetic radiation into an electrical signal; and wherein the continuous semiconductive layer comprises at least two semiconductive materials; wherein the at least two semiconductive materials comprise a nanocomposite comprising a polymer and a filler material, and a first semiconductive material comprises a P 3 HT:PCBM C 70 nanocomposite and a second semiconductive material comprises a nanocomposite comprising PmPV doped with carbon nanotubes; wherein the at least two semiconductive materials are substantially unmixed and are located in separate regions along the longitudinal axis of the fiber photovoltaic device; and a second electrode layer deposited above the continuous semiconductive layer; wherein the second electrode layer is in electrical contact with the continuous semiconductive layer.