Photoactive device

Abstract

A photoactive device that includes a photovoltaic device having electrodes and at least one photoactive layer between the electrodes. One or more other layers may be included between the electrodes. The device includes a substrate positioned below the photovoltaic device, and a nanostructure backreflective layer positioned below the substrate such that at least some of the incident light impinging on the photovoltaic device passes through the photovoltaic device and the substrate and is backscattered through the substrate to the photovoltaic device.