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Tailoring the structural and optical features of PtCl4@ PVA polymeric composite films for optical applications
Optical Materials ( IF 3.8 ) Pub Date : 2021-08-04 , DOI: 10.1016/j.optmat.2021.111416
A.A.A. Darwish 1, 2, 3 , A.M. Aboraia 4, 5 , S.R. Alharbi 6 , A.M. El Shafey 7 , Zuhair M. Mohammedsaleh 8 , H.A. Alrafai 9 , T.A. Hanafy 1, 2, 10 , Asmaa M.A. Omar 10
Affiliation  

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.



中文翻译:

为光学应用定制 PtCl4@PVA 聚合物复合薄膜的结构和光学特性

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。

更新日期:2021-08-04
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