Abstract: The present disclosure relates to solar cell devices and methods of manufacture. In particular, the present disclosure relates to mass producible solar cell devices having improved quantum efficiency. A solar cell device 10a comprises a transparent first electrode layer 101, a transparent second electrode layer 102 and a photocurrent generating layer 103. The transparent first 101 and second 102 electrode layers and the photocurrent generating layer 103 are arranged in a layer stack such that they overlap and the photocurrent generating layer 103 is arranged between the transparent first 101 and second 102 electrode layers.