Abstract Polymeric blends of carboxymethyl cellulose (CMC)/polyvinyl alcohol (PVA) doped with gold nanoparticles (AuNPs) were fabricated via casting technique, while the AuNPs were injected through the films by pulsed laser ablation technique. The obtained films were characterized using FTIR, FESEM besides optical and electrical investigations. The morphological features of the as-synthesized films show that compositions were formed as agglomerated grains with dimensions around 13.1–17.4, 8.7–12.6, 4.8–6.8, 13.5–23.2 and 5.8–9.7 μm, while AuNPs were shown as rod shapes with dimensions 1.2 × 0.19 μm for length and diameter. The maximum height of the roughness (Rt) showed elevated values upon the additional AuNPs starting from 162.4 nm reaching to 345.1 nm for the lowest and highest contributions of AuNPs. Moreover, the direct-bandgaps were reduced with rising of AuNPs contribution starting from 5.08 to 4.88 eV. The applied electric field induced a formation of space charge polarization through the fabricated films correlated with the modification with AuNPs. Hence, compositional changes of bio-polymeric films provoke a great improvement for optoelectrical behaviors accompanied with morphological features.

中文翻译：

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通过脉冲激光烧蚀技术掺杂金纳米粒子的羧甲基纤维素/聚乙烯醇的浇铸聚合物混合物；形态特征、光学和电学研究

摘要 通过浇铸技术制备了掺杂有金纳米粒子 (AuNPs) 的羧甲基纤维素 (CMC)/聚乙烯醇 (PVA) 的聚合物共混物，同时通过脉冲激光烧蚀技术将 AuNPs 注入薄膜。除了光学和电学研究外，还使用 ​​FTIR、FESEM 对获得的薄膜进行了表征。合成薄膜的形态特征表明，成分形成为团聚颗粒，尺寸约为 13.1-17.4、8.7-12.6、4.8-6.8、13.5-23.2 和 5.8-9.7 μm，而 AuNPs 显示为具有尺寸的棒状长度和直径为 1.2 × 0.19 μm。对于 AuNP 的最低和最高贡献，粗糙度的最大高度 (Rt) 显示出从 162.4 nm 开始到 345.1 nm 的额外 AuNP 的升高值。而且，随着 AuNPs 贡献从 5.08 eV 增加到 4.88 eV，直接带隙减小。外加电场通过与 AuNPs 改性相关的制造薄膜诱导空间电荷极化的形成。因此，生物聚合物薄膜的成分变化极大地改善了伴随形态特征的光电行为。