article · Optical Materials
Researchers have fabricated and evaluated new hybrid blended polymer materials made of poly (vinyl chloride) and polyethylene oxide loaded with nickel molybdate nanoparticles, multi-walled carbon nanotubes, and varied amounts of polyaniline. Structural and physical assessments showed that incorporating these fillers altered the electrical, linear optical, and nonlinear optical properties, as well as the emitted colours of the polymer host. Transmittance fell across the visible range, reaching its lowest levels when loaded with nickel molybdate, carbon nanotubes, and 0.4 weight percent polyaniline. This specific formulation also achieved the lowest direct and indirect optical band gaps. In addition, the polymers doped with nickel molybdate demonstrated the highest refractive index at 600 nanometres and superior nonlinear optical values in the visible spectrum, while formulations combining nickel molybdate and carbon nanotubes delivered the highest energy density.
Developing materials with tunable optical and electrical properties is central to advancing modern electronics. By adjusting the combination of conductive fillers and nanoparticles in common polymers, researchers can engineer lightweight composites tailored to manage light transmission, refractivity, and energy storage, supporting the broader development of functional optoelectronic devices.
The findings suggest these polymer blends could find utility in UV blocking, solar cells, nonlinear optical components, optoelectronics, and energy storage applications. Potential end users include manufacturers of optical coatings and flexible electronics. This work represents early-stage laboratory research focused on material formulation and characterisation, meaning substantial further development, device integration, and testing are needed before commercial deployment.
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Nanoparticles of nickel molybdate (NiMoO4) have attracted significant interest for their application as electrode materials. Here, new hybrid blended polymers, poly (vinyl chloride)/polyethylene oxide/nickel molybdate/multi-walled carbon nanotubes/polyaniline (PVC/PEO/NiMoO4/MWCNTs/x wt %PANI) were prepared. Several techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), diffused reflectance, fluorescence and LCR meter were used to investigate the impact of the different fillers on the structure, electrical and optical features of the PVC/PEO blend. The structures of NiMoO4 and different blends were explored using XRD technique. The linear and nonlinear optical properties and the emitted colors of host blend are found to be affected by NiMoO4, MWCNTs and different amounts of PANI fillers. The T values of PVC/PEO were reduced as it loaded with NiMoO4/MWCNTs/x wt %PANI and it reached its minimum value (21–37% in the visible range) in NiMoO4/MWCNTs/x 0.4 %PANI blend. The minimum direct and indirect optical band gap values (4.09, 4.9) eV and (1.92, 3.47, 3.94) eV, respectively, were obtained as the amount of PANI became 0.4 wt % in the doped blend. The doped PVC/PEO blend with NiMoO4 has the highest refractive index value (2.11) at 600 nm. The highest nonlinear optical parameters were acquired exclusively in the visible spectrum when PVC/PEO was doped with NiMoO4.The maximum energy density value (6.03 × 10−3 J/m3) was obtained when the host blend loaded with NiMoO4/MWCNTs. Thus, PVC/PEO/NiMoO4/MWCNTs/x wt %PANI blends are recognized as a good prospect for UV blocking, solar cell, optoelectronic, nonlinear optical devices and energy storage innovation.
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DOI: 10.1016/j.optmat.2024.115239
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