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A Study of the Absorption Edge of ZnO Thin Films Prepared by the Spray Pyrolysis Method

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Characterization of Minerals, Metals, and Materials 2021

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

Zinc oxide (ZnO) thin films are produced by the spray pyrolysis method on glass substrates at 450 °C. The films are characterized using X-ray diffraction (XRD) and UV-VIS transmittance spectroscopy. XRD pattern showed that the films are polycrystalline with hexagonal (wurtzite) structure. Transmittance was measured at room temperature in the wavelength range 350–1100 nm, and used to deduce the absorbance. The fourth derivative of the absorbance is used to detect the peaks in the near-band edge region. Several peaks are found in the region of interest, from which are the free exciton peaks A, B, and C; bound exciton peaks related to defects and impurities; and very weak peaks assigned to longitudinal optical phonon replicas. These results are important for solar cells, room temperature UV laser, and other photonic and optoelectronic applications.

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Authors and Affiliations

  1. Jabal El-Hussain, Amman, 11121, Jordan

    Shadia J. Ikhmayies

Authors
  1. Shadia J. Ikhmayies
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Corresponding author

Correspondence to Shadia J. Ikhmayies .

Editor information

Editors and Affiliations

  1. CanmetMATERIALS, Hamilton, ON, Canada

    Jian Li

  2. ArcelorMittal, Schererville, IN, USA

    Mingming Zhang

  3. Michigan Technological University, Houghton, MI, USA

    Bowen Li

  4. Military Institute of Engineering, Rio de Janeiro, Brazil

    Sergio Neves Monteiro

  5. Amman, Jordan

    Shadia Ikhmayies

  6. Middle East Technical University, Ankara, Turkey

    Yunus Eren Kalay

  7. Michigan Technological University, Houghton, MI, USA

    Jiann-Yang Hwang

  8. University of New South Wales, Canberra, ACT, Australia

    Juan P. Escobedo-Diaz

  9. Los Alamos National Laboratory, Los Alamos, NM, USA

    John S. Carpenter

  10. United States Army Research Laboratory, Abingdon, MD, USA

    Andrew D. Brown

  11. Eurofins EAG Materials Science, LLC, Liverpool, NY, USA

    Rajiv Soman

  12. United States Naval Research Laboratory, Washington, DC, USA

    Alex Moser

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Ikhmayies, S.J. (2021). A Study of the Absorption Edge of ZnO Thin Films Prepared by the Spray Pyrolysis Method. In: Li, J., et al. Characterization of Minerals, Metals, and Materials 2021. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-65493-1_8

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