CuO/PVA-PEG聚合物纳米复合材料三阶非线性光学特性的探索

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-03-01 DOI:10.15251/djnb.2023.181.367

K. Kannan, S. Agilan, P. Peulakumari, G. Saveetha

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引用次数: 0

摘要

采用溶剂铸造法制备了CuO/PVA-PEG纳米复合材料。在XRD谱图中，CuO/PVA-PEG中CuO纳米颗粒的峰位移位和特征峰缺失表明CuO/PVA-PEG中形成了剥落的纳米复合材料。SEM图像显示纳米填料在聚合物基体中的完全分散。FTIR光谱显示PVA和PEG在混合过程中形成了强氢键。用紫外-可见光谱法研究了样品的吸收和透射特性。z扫描分析证实样品中存在双光子吸收。所合成的聚合物纳米复合材料由于激子-激子相互作用而表现出光学非线性。

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Exploration of third order nonlinear optical features of CuO/PVA-PEG polymer nanocomposites

CuO/PVA-PEG nanocomposites were prepared by solvent casting method. In XRD spectra, the shifting of peak position and the absence of remaining characteristics peaks of CuO nanoparticles in CuO/PVA-PEG indicates the formation exfoliated nanocomposites. The SEM image reveals the complete dispersion of the nanofillers in polymer matrix. FTIR spectra revealed the formation of strong H-bonds between PVA and PEG during mixing. The absorption and transmission properties of the sample were studied by UV-Vis studies. Z-scan analysis confirms the presence of two-photon absorption in the sample. The synthesized polymer nanocomposite exhibits optical nonlinearity due to the excitonexciton interaction.

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