Fig. 10From: Controlled Hydrothermal Synthesis and Photoluminescence of Nanocrystalline ZnGa2O4:Cr3+ MonospheresA comparison of the 18 h sample before (line a) and after (line b) calcination at 800 °C (left panel) and FE-SEM particle morphology of the calcination product (right panel)Back to article page