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Nanocrystals of ZnO were prepared by microwave irradiation using Zn (II) acetate and triethanol amin (TEA) as the starting materials and water as solvent. The nanocrystals of ZnO with hexagonal (Wurtzite) structure were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), UV-Vis absorption and FTIR Spectroscopy techniques.

SMP Al-amin is a private school located in the district of Kandanghaur - Indramayu. The learning resources provided by Government only provide books for teachers and do not worksheet to students. Therefore researcher wants make PowerPoint-assisted worksheets increase enthusiasm, student interest learning, motivation while studying. purpose this research produce assisted Microsoft PowerPoint. me...