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Characterization and electrical enhancement of PVP/PVA matrix doped by gold nanoparticles prepared by laser ablation
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.radphyschem.2020.109195
M.J. Tommalieh , Nasser S. Awwad , Hala A. Ibrahium , A.A. Menazea

Abstract In this study, Polyvinyl Pyrrolidone (PVP)/Polyvinyl Alcohol (PVA) blend embedded by gold nanoparticles (AuNPs) was synthesized via traditional casting method to study the enhanced electrical conductivity of the blend. AuNPs were synthesized by Laser Ablation in Liquids Technique (PLAL). The physical characterization of the prepared PVP/PVA/AuNPs films have been performed by various techniques. The electrical conductivity of the prepared samples was evaluated. The structural characterization shows significant sharp diffraction peak at 2 theta = 38° attributed to the plane (111) related to the presence of AuNPs. UV–Vis absorption spectra reveals the distinctive peak of AuNPs at 536 nm. SEM diffractograms approve the embedding of AuNPs in the surface of PVP/PVA. The electrical conductivity data approved enhancement the performance of the pure blend PVP/PVA after embedded with AuNPs prepared by laser ablation. Ac conductivity have been increased by increasing the ratio of AuNPs within PVP/PVA blend. Thus, these observations reflect the use of PVP/PVA/AuNPs samples in electrical applications.

中文翻译:

激光烧蚀制备的金纳米粒子掺杂 PVP/PVA 基体的表征和电学增强

摘要 在本研究中,通过传统的浇铸方法合成了嵌入金纳米粒子 (AuNPs) 的聚乙烯吡咯烷酮 (PVP)/聚乙烯醇 (PVA) 共混物,以研究共混物增强的导电性。AuNPs 是通过液体激光烧蚀技术 (PLAL) 合成的。已通过各种技术对制备的 PVP/PVA/AuNPs 薄膜进行物理表征。评价制备的样品的电导率。结构表征显示在 2 θ = 38° 处有明显的尖锐衍射峰,归因于与 AuNP 存在相关的平面 (111)。UV-Vis 吸收光谱揭示了 AuNP 在 536 nm 处的独特峰。SEM 衍射图证实 AuNPs 嵌入 PVP/PVA 表面。电导率数据证实,在嵌入通过激光烧蚀制备的 AuNP 后,纯共混物 PVP/PVA 的性能得到提高。通过增加 PVP/PVA 混合物中 AuNP 的比例,交流电导率已增加。因此,这些观察结果反映了 PVP/PVA/AuNPs 样品在电气应用中的使用。
更新日期:2021-02-01
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