Different concentrations of nickel oxide (NiO) nanoparticles were successfully inserted into polystyrene (PS) polymer matrix using the solution casting method. X-ray diffraction (XRD), Fourier transform infrared (FT-IR), High-resolution scanning electron microscope (HRSEM), and UV–Vis techniques are used to characterize the nanocomposites. XRD, HRSEM, and FT-IR results indicate that PS and NiO nanoparticles have a good interaction and a high degree of complexity. Using UV–Vis technique, the absorbance of nanocomposites is improved by increasing the nanofiller content. Both the Urbach energy (EU) and the optical energy gap (Eg) were calculated using the Urbach relation and the Tauc model. Refractive indices values of nanocomposites display raising trend with NiO content which promote PS/NiO nanocomposites for use in photonic applications and designing optical devices. Electrical conductivity of nanocomposites were also investigated. The electrical conductivity of the nanocomposites has increased significantly due to the uniform dispersion of NiO nanoparticles and by increasing its content. Conduction is achieved by correlated barrier hopping (CBH).

使用溶液浇铸方法将不同浓度的氧化镍 (NiO) 纳米粒子成功插入聚苯乙烯 (PS) 聚合物基质中。X 射线衍射 (XRD)、傅里叶变换红外 (FT-IR)、高分辨率扫描电子显微镜 (HRSEM) 和 UV-Vis 技术用于表征纳米复合材料。XRD、HRSEM 和 FT-IR 结果表明 PS 和 NiO 纳米粒子具有良好的相互作用和高度的复杂性。使用 UV-Vis 技术，通过增加纳米填料含量来提高纳米复合材料的吸光度。Urbach 能量 (EU) 和光能隙 (Eg) 均使用 Urbach 关系和 Tauc 模型计算。纳米复合材料的折射率值随着 NiO 含量的增加而呈上升趋势，这促进了 PS/NiO 纳米复合材料用于光子应用和设计光学器件。还研究了纳米复合材料的电导率。由于 NiO 纳米粒子的均匀分散及其含量的增加，纳米复合材料的电导率显着增加。传导是通过相关势垒跳跃 (CBH) 实现的。