In various embodiments, fiber photovoltaic devices are described in the
present disclosure. The fiber photovoltaic devices include an optical
filament, a first electrode coating the optical filament, a continuous
semiconductive layer deposited above the first electrode layer, and a
second electrode layer deposited above the continuous semiconductive
layer. The first electrode layer is at least partially transparent to
electromagnetic radiation. The continuous semiconductive layer is in
electrical contact with the first electrode layer. The continuous
semiconductive layer absorbs electromagnetic radiation and turns the
electromagnetic radiation into an electrical signal. The continuous
semiconductive layer includes at least two semiconductive materials that
are substantially unmixed and are located in separate regions along the
longitudinal axis of the fiber photovoltaic device. The second electrode
layer is in electrical contact with the continuous semiconductive layer.
In various embodiments, photovoltaic collectors including a plurality of
the fiber photovoltaic devices are described. In various embodiments,
methods for production of fiber photovoltaic devices by a dip coating
technique are described.