ABSTRACT

In this work, a solution cast technique was used to prepare flexible nanocomposite films of PVA/PANI/Ag with different concentrations of PANI and AgNPs. The samples were described by X-ray diffraction (XRD), transmission electron microscope (TEM), and infrared spectroscopy, which confirmed the successful synthesis of the nanocomposite films. After that, the PVA/10%PANI/6%Ag nanocomposite film was irradiated by different influences of the oxygen ion beam (8 × 1017, 16 × 1017, and 24 × 1017 ions/cm2). The Ac conductivity, dielectric properties, electric modulus, complex impedance behaviour, and the energy density efficiency of the non-irradiated and irradiated films were measured in the frequency range of 100–106 Hz. The results revealed significant changes in these parameters with an increase in concentrations of PANI and Ag nanoparticles inside the host and also with ion beam irradiation. The reported improvements in this study would open the road for appropriating the unirradiated and irradiated nanocomposite films for electromagnetic shielding and optoelectronic applications.

摘要

在这项工作中，溶液浇铸技术用于制备具有不同浓度 PANI 和 AgNPs 的 PVA/PANI/Ag 柔性纳米复合薄膜。通过X射线衍射（XRD）、透射电子显微镜（TEM）和红外光谱对样品进行描述，证实了纳米复合薄膜的成功合成。之后，PVA/10%PANI/6%Ag纳米复合膜受到不同影响的氧离子束（8×1017、16×1017和24×1017离子/cm2）的照射。在 100-106 Hz 的频率范围内测量了未辐照和辐照薄膜的交流电导率、介电性能、电模量、复阻抗行为和能量密度效率。结果表明，随着宿主内部 PANI 和 Ag 纳米粒子浓度的增加以及离子束照射，这些参数发生了显着变化。本研究报告的改进将为将未辐照和辐照纳米复合薄膜用于电磁屏蔽和光电应用开辟道路。