Salim E, Magdy A, El-Farrash A H, El-Shaer A
Physics Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt.
Physics Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
Sci Rep. 2025 Jan 4;15(1):821. doi: 10.1038/s41598-024-76918-5.
An electro- and optically favorable quaternary nanocomposite film was produced by solution-casting nickel oxide nanoparticles (NiO NPs) into polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP), and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT/PSS). Based on transmission electron microscopy (TEM) and X-ray diffraction (XRD) observations, the synthesized NiO NPs have a cubic phase and a diameter between 10 and 45 nm. The complexity and interactions observed through XRD patterns, UV-visible spectra, and FTIR measurements suggest that the NPs are not just dispersed within the polymer matrix, but are interacting with it, leading to enhanced dielectric properties and AC electrical conductivity. From 9 × 10 to 3.22 × 10 Ω, NiO NPs concentrations reduce bulk resistance Rb, indicating more linked conductive channels. The dielectric tests showed that polarized nanoparticles increased polarizability under electric field conditions. The incorporation of NiO NPs boosted DC conductivity from 1.25 × 10 to 5.64 × 10 S m. The mobility of NiO NPs boosts DC conductivity linearly with field frequency. These interactions can lead to improved electrical conductivity, energy storage capabilities, and overall efficiency of the nanocomposite, making it a promising material for various applications.
通过将氧化镍纳米颗粒（NiO NPs）溶液浇铸到聚乙烯醇（PVA）、聚乙烯吡咯烷酮（PVP）和聚（3,4-乙撑二氧噻吩）聚苯乙烯磺酸盐（PEDOT/PSS）中，制备了一种电学和光学性能良好的四元纳米复合薄膜。基于透射电子显微镜（TEM）和X射线衍射（XRD）观察，合成的NiO NPs具有立方相，直径在10至45纳米之间。通过XRD图谱、紫外可见光谱和傅里叶变换红外光谱（FTIR）测量观察到的复杂性和相互作用表明，纳米颗粒不仅分散在聚合物基质中，而且与之相互作用，从而导致介电性能和交流电导率增强。从9×10至3.22×10Ω，NiO NPs浓度降低了体电阻Rb，表明连接的导电通道更多。介电测试表明，极化纳米颗粒在电场条件下提高了极化率。NiO NPs的掺入使直流电导率从1.25×10提高到5.64×10 S m。NiO NPs的迁移率随场频率线性提高直流电导率。这些相互作用可以导致纳米复合材料的电导率、储能能力和整体效率得到改善，使其成为各种应用的有前途的材料。
