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All Journal JFA (Jurnal Fisika dan Aplikasinya)
Sipahutar, W.S.
Department of Materials Engineering, Institut Teknologi Sumatera, Lampung 35365, Indonesia
Physics

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Blueshift of the optical bandgap in ZnO films by controlling the substrate temperature Nurfani, Eka; Chotimah, Cindy; Anrokhi, M.S.; Kadja, G.T.M.; Sipahutar, W.S.; Mustaqim, A.; Rianjanu, A.
Jurnal Fisika dan Aplikasinya Vol 21, No 1 (2025)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v21i1.20160

Abstract

This study investigates the growth of ZnO thin films using the spray pyrolysis method, focusing on the effect of substrate temperature on the optical bandgap. By varying the deposition temperature from 300 to 500 °C, we aim to understand how temperature influences the optical properties of ZnO films. The films were characterized using X-ray diffraction (XRD) and UV-visible spectroscopy (UV-Vis). At 300 °C, the absorption was lowest, and the optical bandgap increased from 3.20 eV at 300 °C to 3.70 eV at 500 °C. These findings are crucial for developing ZnO materials for optoelectronic applications using an efficient and cost-effective deposition method.
Co-Authors Anrokhi, M.S. Chotimah, Cindy Eka Nurfani Kadja, G.T.M. Mustaqim, A. Rianjanu, Aditya