Abstract
CuIn1-xAlxSe2, CuInS2 and ZnS chalcogenide semiconductors nano powder were prepared by simple and low cost technique. CuIn1-xAlxSe2 with wide composition range 0.2-1.0 were milled for 40-50 min in a stainless steel veal of the ball mill which produces homogeneous nano powder. CuInS2 was also prepared easily within the same preparation conditions while ZnS took longer time. All the prepared nano powder were characterized and identified by XRD with the aid of data bank ICDDView 2006 showing that the prepared materials structure agree well with those in standard cards. High reactive materials as well as high vapor pressure materials can be prepared by this technique instead of thermal methods. Besides, low cost and shorter time are required. Smaller crystallite sizes were obtained by this technique in the range 10-25 nm and larger particle of 70-100 nm size were obtained.