This invention is a photovoltaic device comprising an intrinsic or i-layer of amorphous silicon and where the photovoltaic device is more efficient at converting light energy to electric energy at high operating temperatures than at low operating temperatures. The photovoltaic devices of this invention are suitable for use in high temperature operating environments.
This invention was made with Government support under NREL Subcontract No. ZAK-8-17619-02; Prime Contract No. DE-AC36-83CHI10093 awarded by the Department of Energy. The Government has certain rights in this invention.