The PtCl₄@PVA composites films were prepared by casting an aqueous solutions technique. Based on the effect of PtCl₄ concentrations, the PVA structure was modified from semi-crystal to amorphous material. Corresponding to FTIR and XRD, PtCl₄ is interlinked with a hydroxyl group in the matrix. Both refractive index and extinction coefficient were calculated in the UV–Vis region. The energy gaps of PtCl4@PVA composites films were shifted from 2.58 to 2.43 eV with increasing the PtCl₄ concentrations. Also, the real and imaginary dielectric constants were studied. Furthermore, the volume energy loss function and the surface energy loss function were calculated. Two types of lasers with different input power, as optical limiters, are used to examine the response of PtCl₄@PVA films with different PtCl₄ concentrations. The present results show that the PtCl₄@PVA films rely on laser power to attenuate green lasers and He–Ne lasers. The outcome of PtCl₄@PVA films can be extended to optical applications such as laser filters CUT-OFF.

PtCl ₄ @PVA 复合膜是通过浇铸水溶液技术制备的。基于PtCl ₄浓度的影响，PVA 结构从半结晶材料转变为无定形材料。对应于 FTIR 和 XRD，PtCl ₄与基质中的羟基相互连接。折射率和消光系数均在 UV-Vis 区域计算。随着 PtCl _{4 的}增加，PtCl4@PVA 复合薄膜的能隙从 2.58 eV 变为 2.43 eV浓度。此外，还研究了实数和虚数介电常数。此外，计算了体积能量损失函数和表面能损失函数。具有不同输入功率的两种类型的激光器作为光学限制器，用于检查具有不同 PtCl ₄浓度的 PtCl ₄ @PVA 薄膜的响应。目前的结果表明 PtCl ₄ @PVA 薄膜依靠激光功率来衰减绿色激光和 He-Ne 激光。PtCl ₄ @PVA 薄膜的结果可以扩展到光学应用，例如激光滤光片 CUT-OFF。