IRAQI JOURNAL OF APPLIED PHYSICS Vol. 22, No. 3, July-September 2026, pp. 479-484 Structural and Optical Characteristics of Zinc Oxide Mohanad A. Aswad* Firas J. Kadhim Nanostructures Deposited by Reactive Magnetron Sputtering: Role of Gas Mixing Ratio...
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IRAQI JOURNAL OF APPLIED PHYSICS Vol. 22, No. 3, July-September 2026, pp. 479-484 Structural and Optical Characteristics of Zinc Oxide Mohanad A. Aswad* Firas J. Kadhim Nanostructures Deposited by Reactive Magnetron Sputtering: Role of Gas Mixing Ratio Department of Physics, College of Science, The reactive magnetron sputtering was employed to synthesize zinc oxide (ZnO) University of Baghdad, nanostructures at different Ar:O2 gas mixing ratios. The formation of wurtzite Baghdad, IRAQ phase of ZnO was confirmed with larger crystallinity at higher O2 ratios and * Corresponding author email: reduced average crystallite size at the highest Ar ratio. The Zn-O stretching mohannad.abd2404p@sc.uobaghdad.edu.iq vibration besides O-H bending and stretching modes were revealed, indicating higher hydroxyl adsorption at larger oxygen content. The gas ratio was found strongly influencing topographic morphology of ZnO films where the O2-rich conditions produced finer and more homogeneous nanostructu
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