Polycrystalline thin film p-AgInSe2/n-CdS heterojunctions were fabrica
ted and current density-voltage, capacitance-voltage and spectral resp
onse of the junctions were studied. The heterojunction was illuminated
in the back-wall configuration and an open-circuit voltage of 500 mV,
a short-circuit current density of 24 mA cm(-2) and an electrical con
version efficiency of 6% have been obtained for a cell 1 cm(2) in area
under a solar input of 100 mW cm(-2). (C) 1998 Elsevier Science B.V.