Abstract
This paper examines composite materials based on polymer blends (PBs) of polyvinyl alcohol (PVA) and polyvinylpyrrolidone (PVP). Hydrothermal synthesis was used to prepare CdS/ZnO core–shell nanostructures. The casting method was used to synthesize PVA-PVP@CZS PB nanostructures. These materials were characterized using a variety of analytical techniques, as indicated in our statement. XRD characterization revealed that CZS crystallized into hexagonal wurtzite ZnO and cubic CdS. The optical band gap was calculated via UV–Vis–NIR spectra, which decreased as increasing wavelengths. The reported optical band gaps in the present work are truly comparable to other studies of different types of blend polymer films with different fillers and dopants. The frequency-dependent composite films were used to determine the AC conductivity of the produced PB nanostructures. The AC conductivity of the compound follows Jonscher power law, it can provide valuable insights into its electrical transport properties. When increasing the content of ZCS fillers, both (Zʹ) and (Z") changed and decreased with the applied frequency indicating a weakening of the opposition to AC flow within the material or circuit. Equivalent circuits were used to analyze the impedance spectra. The low values of series resistance at high-frequency regions indicate that the films are low-loss materials. The PVA-PVP@ZCS PB nanostructures were also successfully prepared and exhibited improved functional properties, such as enhanced electrical conductivity and optical transparency.
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All authors contributed that there is no associated data, or the data will be not deposited. Data sharing is not applicable to this article as no datasets were generated or analyzed during the current study.
Change history
16 May 2024
A Correction to this paper has been published: https://doi.org/10.1007/s10854-024-12743-w
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The authors gratefully acknowledge funding provided by the Deanship of Scientific Research at King Khalid University. As part of a small group research project with grant number RGP1/142/44.
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The following authors contributed to the study of the functional properties and characterizations of PVA-PVP PBs incorporating CdS/ZnO core–shell (ZCS) nanostructures for optoelectronic applications. This study investigated the functional properties and characterizations of PVA/PVP polymer blends incorporating CdS/ZnO core–shell (ZCS) nanostructures for optoelectronic applications. The ZCS nanostructures were synthesized using a hydrothermal method and characterized using X-ray diffraction (XRD). The PVA-PVP@ZCS PB films were prepared using a solution casting method and characterized using XRD, Optical limiting effect, UV–visible NIR spectroscopy, and dielectric conductivity by [WJ], [AB], [HYZ], and [ISY]. The effect of wt % ZCS nanostructure filler on the structural, optical, limiting effect, AC conductivity, and series resistance parameters have been examined. The UV–visible spectroscopy assessment exposed that the PVA-PVP@ZCS PB nanostructures had a higher absorption band in the visible region linked to the pure PVA-PVP PB film. The indirect and direct energy gap rates of polymer blend films were determined as the addition wt % ZCS increased. The results showed that the indirect energy gap rate decreased with increasing ZCS content, while the direct energy gap rate increased. This can be explained by the fact that the ZCS fillers act as electron traps, which reduce the energy required for electrons to transition from the valence band to the conduction band. The outcomes of this study show that the PVA-PVP@ZCS PB nanostructures have good functional properties, such as high visible light absorption. The PVA-PVP PB is a good matrix material for the CdS/ZnO core–shell nanostructure because it is transparent, flexible, and easy to process. The PVA-PVP PBs incorporating ZCS fillers were also successfully prepared and exhibited improved functional properties, such as enhanced electrical conductivity and optical transparency. It also provides good dispersion which is important for achieving high performance optoelectronic devices. The first draft of the manuscript was written by [AB] and all authors commented on previous versions of the manuscript. All authors read and approved the final version of the submitted manuscript.
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Jilani, W., Bouzidi, A., Zahran, H.Y. et al. Identifying the functional properties and characterizations of PVA/PVP polymer blends incorporating CdS/ZnO core–shell (ZCS) fillers for optoelectronic applications. J Mater Sci: Mater Electron 35, 444 (2024). https://doi.org/10.1007/s10854-024-12188-1
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DOI: https://doi.org/10.1007/s10854-024-12188-1