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Newly Fabricated Ternary PAAm-PVA-PVP Blend Polymer Doped by SiO2: Absorption and Dielectric Characteristics for Solar Cell Applications and Antibacterial Activity

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Abstract

Silicon oxide nanoparticles (SiO2 NPs) attracted nanomaterials for tuning the structure, characterizations, band gap, and dielectric properties. Newly ternary blend polymers nanocomposites reinforced using SiO2 nanoparticles were fabricated and investigated. Poly(acrylamide) (PAAm), poly(vinyl alcohol) (PVA), and poly(vinyl pyrrolidone) (PVP) were mixed with different ratios and loaded with different ratios of SiO2 (x = 0.00, 0.01, 0.03, and 0.05) wt. % applying green-easy solution-casting procedure. X-ray diffraction (XRD), infrared Fourier-transform spectroscopy (FTIR), optical microscopy (OPM), field emission scanning electron microscope (FE-SEM), UV–visible spectrophotometer, DC electrical meter and antibacterial activity of the nanocomposite were used to characterizations the samples. FTIR spectra exhibited significant interfacial interaction between the component matrixes. XRD patterns for samples showed a broad peak between ~ 10–50°. OPM and FESEM images showed a homogeneous surface and excellent distribution of nanoparticles in the matrix. The optical absorption results enhanced from 0.73 to 0.91 at 200 nm, and the energy gap improved from 4.8 to 3.4 eV for allowed indirect transition and from 4.2 to 3.1 eV for forbidden indirect transition. The dielectric constant and loss improved from 0.20 to 0.53, and outstanding enhancement was presented in the electrical conductivity. SiO2 NPs exhibited notable improvement in the inhibited zone of antibacterial activity from 0.00 to 24 mm of S. aureus and 23 mm of E. coli compared to ternary blend polymers. These nanocomposites are promising for various applications, such as solar cells, optoelectronic, and biology applications.

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Acknowledgements

The authors would like to thank the department of Physics, University of Babylon, Iraq, for their support.

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  1. Department of Physics, College of Education for Pure Science, University of Babylon, Babylon, Iraq

    Athar Iqbal Alawi & Ehssan Al-Bermany

  2. Educational Directorate of Babylon, Ministry of Education, Baghdad, Iraq

    Athar Iqbal Alawi

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Ehssan Al-Bermany designed the idea and experimental part and performed with analysis of the FTIR, SEM, OMI, and optical properties. Athar Iqbal Alawi performed and wrote the experiments, contributing to the electrical properties and antibacterial activity. Athar Iqbal Alawi wrote the first draft of the paper, and Ehssan Al-Bermany improved, revising the final version. Both authors read and approved the final manuscript.

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Correspondence to Ehssan Al-Bermany.

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Alawi, A.I., Al-Bermany, E. Newly Fabricated Ternary PAAm-PVA-PVP Blend Polymer Doped by SiO2: Absorption and Dielectric Characteristics for Solar Cell Applications and Antibacterial Activity. Silicon 15, 5773–5789 (2023). https://doi.org/10.1007/s12633-023-02477-5

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