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REHAB SHATHER ABDUL HAMZA, IDREES OREIBI, and
MAJEED ALI HABEEB
Enhancement Structural Properties and Optical
Energy Gap of PVA–ZrO2–CuO Nanostructures for Optical Nanodevices
379–390 (2024)
PACS numbers: 42.79.-e, 78.20.Ci, 78.30.-j, 78.67.Sc, 81.07.Pr, 82.35.Np, 83.85.Ei
As a promising nanostructure to use in various optoelectronic nanodevices, PVA–ZrO2–CuO
nanocomposites (NCs) are created in this study using the casting method with different ratios of ZrO2/CuO.
Compared to other nanosystems, the PVA–ZrO2–CuO nanostructures stand out for their low cost, high corrosion
resistance, good optical properties, and lightweight. The investigation is focused on examining the
structural and optical characteristics of nanocomposites composed of PVA–ZrO2–CuO. FTIR spectra indicate a
physical interference between the pure polymer and nanoparticles. The optical microscope is used to describe
the structural properties and the changes in the surface morphology of nanocomposite. The findings about the
optical characteristics indicate an increase in absorption by approximately 283%. Additionally, the energy
gap experiences a decrease by approximately 107% for allowed indirect transitions and 408% for forbidden
indirect transitions. These changes are observed, when the PVA–ZrO2–CuO content reaches a weight percentage
of 6%. Consequently, these results suggest that the material may possess suitability for a range of
optoelectronic devices
KEY WORDS: polyvinyl alcohol, ZrO2–CuO nanoparticles, optical properties
DOI: https://doi.org/10.15407/nnn.22.02.379
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