Morphological changes in vapor grown Zn and ZnO nano- and microstructures. / A. Jishiashvili, Z. Shiolashvili, N. Makhatadze, A. Chirakadze, V. Gobronidze, T. Gagnidze, D. Jishiashvili. – 2021–2022. – # 21/22. – pp. 141-146. – eng. Zn-based crystalline nano- and micromaterials were synthesized by the pyrolytic technology at 410°C. The powders of ammonium chloride, ZnO and Zn served as source materials. At first, while the Si substrate temperature was rising up to 410°C, the ZnO microcrystals were produced by the interaction of ZnCl2 vapor with water molecules. After the consumption of ammonium chloride and the formation of an oxygen deficient environment, the metallic Zn was providing the Zn vapor to the substrate. The hexagonal ZnO microcrystals with prismatic habit were produced, together with hexagonal crystalline Zn platelets. Finally, when the metallic Zn in the source was also completely consumed, the hollow ZnO microspheres were formed. Fig. 3, Ref. 14.