The photovoltaic activity of electrodeposited CuInSe2 thin films in an
aqueous acidic solution has been determined by photoelectrochemical m
easurements. We used the model of Gartner to extract values of effecti
ve optoelectronic parameters of the CuInSe2 films. These values sugges
t the presence of a high density of bulk or surface defects in the ele
ctrodeposited layers.