Effect of cadmium sulfide spheres on structural, mechanical, and optical properties of polyvinyl butyral/cadmium sulfide nanocomposite films

IF 3.6 4区 材料科学 Q2 MATERIALS SCIENCE, COMPOSITES
Mohammed O Alziyadi, Asma Alkabsh, Basmat Amal M Said, Mustafa S. Shalaby
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Abstract

Herein, cadmium sulfide (CdS) nanospheres were synthesized using the hydrothermal method and then inserted into a polyvinyl butyral (PVB) matrix at different concentrations (0%, 2%, and 4% wt.) using the solution casting method. This work examines the effects of varying percentages of CdS spheres on the structural characteristics, mechanical properties, surface/volume energy loss functions, dielectric constants, and linear/non-linear optical properties of PVB nanocomposite films. The findings confirmed the successful synthesis of sphere-like CdS with a cubic structural phase. The stress-strain curves of PVB and its composites with nano CdS spheres were examined. The PVB has a direct/indirect energy gap of 5.1 eV (4.1 eV). With a CdS doping level of 2% and 4%, the values correspondingly decreased to 4.76 eV (3.36 eV) and 4.49 eV (2.45 eV). The EU values for PVB, PVB-2 wt.% CdS, and PVB-4 wt.% CdS nanocomposite are 15.3, 11.2, and 14.1 meV, respectively. CdS nanospheres decreased the volume and surface energy losses (VELF & SELF) of PVB films. The research demonstrates that the mechanical properties and optical parameters of PVB/CdS nanocomposite films positively correlate with the concentration of CdS nanospheres. These attributes make them well-suited for incorporation into flexible electronic devices.
硫化镉球对聚乙烯醇缩丁醛/硫化镉纳米复合薄膜的结构、机械和光学性能的影响
本文采用水热法合成了硫化镉(CdS)纳米球,然后采用溶液浇注法将不同浓度(0%、2% 和 4% wt.)的 CdS 球放入聚乙烯醇缩丁醛(PVB)基体中。这项研究考察了不同比例的 CdS 球体对 PVB 纳米复合薄膜的结构特征、机械性能、表面/体积能量损失函数、介电常数以及线性/非线性光学性能的影响。研究结果证实成功合成了具有立方结构相的球状 CdS。研究还考察了 PVB 及其与纳米 CdS 球复合材料的应力-应变曲线。PVB 的直接/间接能隙为 5.1 eV (4.1 eV)。当 CdS 掺杂水平为 2% 和 4% 时,其值相应地降至 4.76 eV (3.36 eV) 和 4.49 eV (2.45 eV)。PVB、PVB-2 wt.% CdS 和 PVB-4 wt.% CdS 纳米复合材料的 EU 值分别为 15.3、11.2 和 14.1 meV。CdS 纳米球降低了 PVB 薄膜的体积和表面能量损失(VELF & SELF)。研究表明,PVB/CdS 纳米复合薄膜的机械性能和光学参数与 CdS 纳米球的浓度呈正相关。这些特性使它们非常适合集成到柔性电子设备中。
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来源期刊
Journal of Thermoplastic Composite Materials
Journal of Thermoplastic Composite Materials 工程技术-材料科学:复合
CiteScore
8.00
自引率
18.20%
发文量
104
审稿时长
5.9 months
期刊介绍: The Journal of Thermoplastic Composite Materials is a fully peer-reviewed international journal that publishes original research and review articles on polymers, nanocomposites, and particulate-, discontinuous-, and continuous-fiber-reinforced materials in the areas of processing, materials science, mechanics, durability, design, non destructive evaluation and manufacturing science. This journal is a member of the Committee on Publication Ethics (COPE).
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