“…All Cu, In and Se elements are confirmed by the EDX spectra in the Figure . The EDX spectrum confirms the purity of the ingot powder as no foreign elements can be observed. 52.2°, (312) at 52.4°, (008) at 64°, (213) at 41.9 º, (400) at 64.3°, (316) at 70.7°, (332) at 71º, (424) at 81.4° and 87.5° confirm the CuInSe 2 compound in a chalcopyrite phase, as reported earlier [3,[27][28][29][30][31][32]. The reflection 18 is not considered by FullProf software.…”