▎ 摘　　要

NOVELTY - Organic photovoltaic device (600) comprises: a substrate (605); a first electrode coupled to the substrate; a buffer layer (630) coupled to the first electrode, where the buffer layer comprises a p-phenylene layer having a p-phenylene material; a second electrode disposed above the first electrode; and at least one photoactive active layer (640) disposed between the buffer layer and the second electrode, the photoactive layers having at least one electron donor material and at least one electron acceptor material. The p-phenylene material comprises a p-septiphenyl material, a p-sexiphenyl material, a p-quaterphenyl material or a p-quinquiphenyl material. USE - The devices is used as photovoltaic solar cells, can be packaged together to constitute a photovoltaic array of a larger photovoltaic system, e.g. a solar panel for convert light into electricity by using the photovoltaic effect. ADVANTAGE - The device: has a high transparency in the visible range, e.g. greater than 30% (i.e. 30-100%); and utilizes buffer layers and and photoactive layer to implement the electrical and optical properties. DESCRIPTION OF DRAWING(S) - The figure shows a schematic diagram of the visibly transparent photovoltaic device. Photovoltaic device (600) Substrate (605) Optical layer (610) Transparent electrode (620) Buffer layer (630) Photoactive layer (640)