Figure 4From: Solvothermal Synthesis and Characterization of Chalcopyrite CuInSe2 Nanoparticles(a) XRD patterns of CuInSe2 products prepared at 200 °C for 12, 15, and 48 h. SEM images of CuInSe2 nanostructures prepared 200 °C for (b) 15 h, (c) 30 h, and (d) 48 hBack to article page