Polymer nanocomposites composed of zinc oxide nanoparticles (ZnO NPs)-doped polyvinyl alcohol (PVA) polymer matrix have been synthesized using solvent casting preparation method. The ZnO/PVA polymer nanocomposite films are irradiated with different argon ion beam fluences using broad-beam ion source. The prepared films are characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and UV–visible spectroscopy. The XRD shows that ZnO NPs are successfully formed on PVA polymer and the mean size of ZnO NPs is 31.2[Formula: see text]nm. The FTIR peaks indicate that ZnO NPs are attached to the polymer chains, whereas the SEM analysis shows that ZnO NPs are homogeneously dispersed into the PVA polymer surface. The optical bandgap, band tail width and number of carbon atoms in cluster are obtained and discussed using UV–visible spectroscopy. The transmittance is shown with low transmittance intensity in the UV region with the addition of ZnO NPs and ion beam irradiation. The optical bandgap [Formula: see text] showed significant decrease from 5.25[Formula: see text]eV for pristine PVA to 3.10[Formula: see text]eV by adding ZnO and from 3.10[Formula: see text]eV for un-irradiated ZnO/PVA to 2.98[Formula: see text]eV after being irradiated by [Formula: see text][Formula: see text]cm[Formula: see text]. The number of carbon atoms in cluster [Formula: see text] is increased by ZnO addition, whereas the Urbach energy [Formula: see text] is decreased. These results confirmed that there are significant modifications in PVA polymer, and the produced flexible ZnO/PVA is a good polymer nanocomposite film for technological applications.

中文翻译：

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离子束辐照对 ZnO/PVA 复合材料表面形态和光学性能的影响

采用溶剂浇铸制备方法合成了由掺杂氧化锌纳米粒子 (ZnO NPs) 的聚乙烯醇 (PVA) 聚合物基体组成的聚合物纳米复合材料。使用宽束离子源用不同的氩离子束注量照射ZnO/PVA聚合物纳米复合膜。使用 X 射线衍射 (XRD)、傅里叶变换红外光谱 (FTIR)、扫描电子显微镜 (SEM) 和紫外-可见光谱对制备的薄膜进行表征。XRD表明在PVA聚合物上成功形成了ZnO NPs，ZnO NPs的平均尺寸为31.2[公式：见正文]nm。FTIR 峰表明 ZnO NPs 附着在聚合物链上，而 SEM 分析表明 ZnO NPs 均匀分散在 PVA 聚合物表面。光学带隙，使用紫外-可见光谱获得并讨论了簇中碳原子的带尾宽度和数量。通过添加 ZnO NPs 和离子束照射，透射率在 UV 区域以低透射率强度显示。光学带隙[公式：见文本]显示从原始 PVA 的 5.25[公式：见文本]eV 显着降低到 3.10[公式：见文本]eV，添加 ZnO 和未辐照的 3.10[公式：见文本]eV ZnO/PVA经【公式：见文】[公式：见文]cm[公式：见文]辐照后达到2.98[公式：见文]eV。添加 ZnO 会增加簇中的碳原子数 [公式：见正文]，而 Urbach 能量 [公式：见正文] 会减少。这些结果证实了 PVA 聚合物有显着的改性，