A comparison between thin film solar cells made from co‐evaporated CuIn<sub>1‐x</sub>Ga<sub>x</sub>Se<sub>2</sub> using a one‐stage process versus a three‐stage processP.M.P. Salomé, Marika Edoff, Paulo A. Fernandes et al.|Progress in Photovoltaics Research and Applications|2014Cited by 69