Cadmium sulphide layers have been prepared on various substrates by the screen printing and sinlering
technique on conducting and nonconducting substrates.These layers have been annealed in vacuum a1
350' C for obtaining enhanced conductivity. Cuprous sulphide layers have been obtained on these layers
by the Clevite process. Post heat-treatment has been carried out in air to form the required p-n
heterojunctions. Solar a 's have been fabricated and the output characteristics have been studied