INFLUENCE OF MORPHOLOGY AND STRUCTURE OF CU IN ALLOYS ON THE PROPERTIES OF CUINSE2/

Thin CuInSe2 films were prepared by selenization of sputtered metal pr ecursors. The surface morphology, phase comPosition and adhesion at th e Mo/glass substrate of the ternary compound have been correlated to t he structure of the precursor. Single phase, homogeneous, small graine d (I mum) CuInSe2 arises from precursors showing stable phases (Cu11In 9 and In). An ordered vacancy compound (CuIn3Se5) is likely present in In-rich (In>27 at.%) films. Precursors with a high content of the met astable CuIn2 phase show a very poor adhesion to the substrate.