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<p>Nanocomposites films of tantalum carbide nanoparticles (TaC NPs) doped PVA/PVP blend were synthesized as a future nanocomposites films to use in promising nanooptoelectronics devices. The optical properties of PVA/PVP/TaC films were examined at wavelength range from 220 to 820&#xa0;nm. The experimental results demonstrated the absorbance (A) of PVA/PVP blend increased about 93%, 97.6% and 97.4% at UVB, VIS and IR wavelengths (λ = 280&#xa0;nm, 520&#xa0;nm and 820&#xa0;nm) whereas the transmittance (T) decreased about 62% at λ = 520&#xa0;nm with rise in the content of TaC NPs to 3 wt.%. This factor can be functional as a potential nanomaterials in nanooptoelectronics fields. The energy gap (E<sub>g</sub>) of polymeric blend reduced from 5 to 4&#xa0;eV when the content of TaC NPs equal to 3 wt.%. The optical constants: α, k, ε<sub>1</sub>, ε<sub>2</sub>, n and σ<sub>op</sub> for PVA/PVP blend enhanced about 97.4%, 97.4%, 76.2%, 98.7%, 51.3%, 98.7% respectively, with increasing of the TaC NPs to 3 wt.% at λ = 520&#xa0;nm. Finally, the increase of absorbance (97.4%) and optical conductivity (98.7%) at VIS spectrum makes the PVA/PVP/TaC nanocomposites are appropriate for various functional optoelectronics fields.</p>

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Synthesis and ameliorating the microstructure and optical features of tantalum carbide nanostructures doped PVA/PVP for versatile optoelectronics devices

  • 期刊论文

  • 发表日期：

    2025年2月3日

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  • Ahmed Hashim,
  • Hamed Ibrahim,
  • Dinesh Uthra,
  • Kiran Thakur,
  • Farhan Lafta Rashid,
  • Aseel Hadi

摘要

Nanocomposites films of tantalum carbide nanoparticles (TaC NPs) doped PVA/PVP blend were synthesized as a future nanocomposites films to use in promising nanooptoelectronics devices. The optical properties of PVA/PVP/TaC films were examined at wavelength range from 220 to 820 nm. The experimental results demonstrated the absorbance (A) of PVA/PVP blend increased about 93%, 97.6% and 97.4% at UVB, VIS and IR wavelengths (λ = 280 nm, 520 nm and 820 nm) whereas the transmittance (T) decreased about 62% at λ = 520 nm with rise in the content of TaC NPs to 3 wt.%. This factor can be functional as a potential nanomaterials in nanooptoelectronics fields. The energy gap (Eg) of polymeric blend reduced from 5 to 4 eV when the content of TaC NPs equal to 3 wt.%. The optical constants: α, k, ε1, ε2, n and σop for PVA/PVP blend enhanced about 97.4%, 97.4%, 76.2%, 98.7%, 51.3%, 98.7% respectively, with increasing of the TaC NPs to 3 wt.% at λ = 520 nm. Finally, the increase of absorbance (97.4%) and optical conductivity (98.7%) at VIS spectrum makes the PVA/PVP/TaC nanocomposites are appropriate for various functional optoelectronics fields.