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<p>This work seeks to develop a novel composite polymer comprising polymethyl methacrylate (PMMA), ZnCo<sub>2</sub>O<sub>4</sub>/CdS, tetrabutylammonium iodide (TBAI), and multiwall carbon nanotubes (MWCNTs) for various optoelectronic applications. Loaded polymers with ZnCo<sub>2</sub>O<sub>4</sub> + CdS/TBAI/x wt% MWCNTs displayed significant absorbance in the UVB and UVC zones, irrespective of the MWCNTs doping level, while the polymer with x = 0.25% MWCNTs presented the maximum absorbance in the UVA zone. The least direct and indirect optical bandgap energies were achieved with PMMA containing ZnCo<sub>2</sub>O<sub>4</sub> + CdS/TBAI/x wt% MWCNTs. The highest refractive index (1.53) at 600&#xa0;nm was attained with the polymer containing ZnCo<sub>2</sub>O<sub>4</sub> + CdS/TBAI/0.25 wt% MWCNTs. The doped polymer with 0.25 wt % MWCNTs demonstrates the greatest optical parameter values. The highest energy density value was recorded in ZnCo<sub>2</sub>O<sub>4</sub> + CdS, TBAI, and/or 0.2 wt% MWCNTs polymer. The incorporation of diverse fillers into PMMA resulted in an improvement in the dielectric constant AC conductivity.</p>

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Regulation of the optical and dielectric aspects of PMMA polymer by incorporating ZnCo2O4-CdS/TBAI/MWCNTs for optoelectronic devices and energy storage applications

  • 期刊论文

  • 发表日期：

    2025年6月17日

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  • A. M. El-naggar,
  • Zein K. Heiba,
  • A. M. Kama,
  • Mohamed Bakr Mohamed

摘要

This work seeks to develop a novel composite polymer comprising polymethyl methacrylate (PMMA), ZnCo2O4/CdS, tetrabutylammonium iodide (TBAI), and multiwall carbon nanotubes (MWCNTs) for various optoelectronic applications. Loaded polymers with ZnCo2O4 + CdS/TBAI/x wt% MWCNTs displayed significant absorbance in the UVB and UVC zones, irrespective of the MWCNTs doping level, while the polymer with x = 0.25% MWCNTs presented the maximum absorbance in the UVA zone. The least direct and indirect optical bandgap energies were achieved with PMMA containing ZnCo2O4 + CdS/TBAI/x wt% MWCNTs. The highest refractive index (1.53) at 600 nm was attained with the polymer containing ZnCo2O4 + CdS/TBAI/0.25 wt% MWCNTs. The doped polymer with 0.25 wt % MWCNTs demonstrates the greatest optical parameter values. The highest energy density value was recorded in ZnCo2O4 + CdS, TBAI, and/or 0.2 wt% MWCNTs polymer. The incorporation of diverse fillers into PMMA resulted in an improvement in the dielectric constant AC conductivity.