Patent ID: 7172654

Claim:
A method for preparing a solid composition comprising preparing a solid composition comprising Cu, In and Se from a liquid molten Cuâ€”Inâ€”Se phase under conditions resulting from the phase diagrams shown in FIGS. 2 , 3 aâ€“b , 6 , 14 aâ€“b , 16 aâ€“b , 21 , 22 , 23 , 27 aâ€“c , 28 , 29 , 30 , 31 , 32 , 36 , 45 , 46 , 47 , 50 , 51 , 52 , 53 and to the liquidus projections as shown in FIGS. 26 aâ€“f and 43 aâ€“g to form the solid composition comprising the elements Cu, In and Se.