Solution casting method is used to prepare solid polymer electrolyte films composed of Na₂TeO₃/PVA (x wt% of Na₂TeO₃; x = (0.0, 1.1, 3.3, 4.4, 8.9 and 17.8). The description of crystalline nature parameters of the solid polymer electrolyte films has been confirmed by adding salt by XRD analysis. The average inter-crystallite separation and stacking fault is reduced as the dislocation density increments with a rising salt concentration in the polymer matrix. The decrease in the indirect optical energy gap and the observed increase in refractive index (n) of Na₂TeO₃/PVA samples with the increasing Na₂TeO₃ salt compared with the pure PVA suggest the possibility of their use in optical device applications. Moreover, the materials' refractive index values were determined from Moss, Reddy, Anani, and Kumar-Singh relationships. In terms of equivalent circuits, the impedance spectra were fitted and explained. The optical limiting of prepared films with different salt content was investigated by continuous laser beam waves operated at 532.8 nm. The findings showed that the films attenuate the laser beam. The obtained dielectric parameters supposed that the Na₂TeO₃ salt embedded within the PVA as a matrix conveys faster charge transfer and acts as a non-ideal capacitor. The conductivity–frequency dependence was investigated using empirical Jonscher’s power law. The produced polymeric electrolyte films can be widely relevant to electronic and optoelectronic, and biomedical applications.

溶液流延法来制备的Na组成的固体高分子电解质膜₂的TeO ₃ / PVA（X  ％（重量）的Na ₂的TeO ₃ ; X  =（0.0，1.1，3.3，4.4，8.9和17.8）的结晶性质的描述固体高分子电解质膜的X射线衍射分析证实了其参数，随着位错密度的增加，随着母体中盐浓度的增加，平均晶体间的分离和堆积缺陷减少，间接光能的降低。的Na的间隙和在折射率（n）所观察到的增加₂的TeO ₃ / PVA样品与增加的Na ₂的TeO与纯PVA相比，₃盐暗示了其在光学设备应用中使用的可能性。此外，材料的折射率值是根据莫斯，雷迪，阿纳尼和库玛-辛格的关系确定的。就等效电路而言，拟合并解释了阻抗谱。通过在532.8 nm下操作的连续激光束研究了盐含量不同的薄膜的光学极限。结果表明，这些膜使激光束衰减。所获得的介电参数假定为Na ₂ TeO ₃作为基质嵌入PVA的盐可以更快地传输电荷，并充当非理想的电容器。电导率-频率相关性使用经验乔纳斯幂定律进行了研究。所生产的聚合物电解质膜可广泛地与电子和光电以及生物医学应用相关。