Flexible poly(vinyl alcohol) (PVA)/polyaniline (PANI)/silver (Ag) nanocomposites consisting of PANI and silver nanoparticles (AgNPs) with PVA were successfully fabricated using the casting method for application in energy-storage devices. The surface characteristics of the composite films were analyzed using X-ray diffraction, differential scanning calorimetry and Fourier transform infrared spectroscopy techniques. The estimated crystallite size of AgNPs was 11.7 nm, which increased to 15.3 nm by increasing silver from 2 to 4%. In addition, the morphology of the films was investigated utilizing scanning electron microscopy. The conductivity σ _DC improved from 4.8 × 10⁻¹¹ S/cm for PVA to 1.3 × 10⁻¹⁰ S/cm for PVA/PANI and to 1.2 × 10⁻⁹ S/cm for PVA/PANI/silver. Furthermore, with an increasing temperature value, the electrical resistance was reduced. Moreover, the activation energy was modified with the addition of PANI and silver into the PVA matrix. PVA/PANI/silver was irradiated with hydrogen fluences of 0.4 × 10¹⁸, 0.8 × 10¹⁸ and 1.2 × 10¹⁸ ions/cm². σ _AC was enhanced from 2.67 × 10⁻⁹ S/cm for PVA/PANI/silver to 2.02 × 10⁻⁸ S/cm for 0.4 × 10¹⁸ ions/cm² and to 3.95 × 10⁻⁶ S/cm for 1.2 × 10¹⁸ ions/cm². Moreover, the dielectric constant increased from 0.43 for PVA/PANI/silver to 0.56, 1.23 and 4.18 with exposure to 0.4 × 10¹⁸, 0.8 × 10¹⁸ and 1.2 × 10¹⁸ ions/cm², respectively. The results showed modifications in the electrical characteristics of the irradiated composites, which opened the way for applying these samples in a wide range of dielectric applications.

中文翻译：

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氢辐照纳米复合材料的制备、表面表征和电性能

采用铸造法成功制备了由PANI和纳米银颗粒（AgNPs）与PVA组成的柔性聚乙烯醇（PVA）/聚苯胺（PANI）/银（Ag）纳米复合材料，用于储能装置。采用X射线衍射、差示扫描量热法和傅里叶变换红外光谱技术分析了复合薄膜的表面特征。 AgNP 的估计微晶尺寸为 11.7 nm，通过将银从 2% 增加到 4%，微晶尺寸增加到 15.3 nm。此外，利用扫描电子显微镜研究了薄膜的形态。电导率σ _DC从PVA的4.8×10 ^-11  S/cm提高到PVA/PANI的1.3×10 ^-10  S/cm，以及PVA/PANI/银的1.2×10 ^-9  S/cm。此外，随着温度值的增加，电阻减小。此外，通过在 PVA 基质中添加 PANI 和银来改变活化能。 PVA/PANI/银用0.4×10 ¹⁸、0.8×10 ¹⁸和1.2×10 ¹⁸ 离子/cm ²的氢注量进行辐照。σ _AC从 PVA/PANI/银的2.67 × 10 ^-9 S/cm增强至 0.4 × 10 ¹⁸ 离子/cm ^{2的 2.02 × 10 -8}  S/cm和 1.2 × 1.2 × 10 ^-6  S/cm 的 3.95 × 10 -6 S/cm 10 ¹⁸ 离子/cm ²。此外，当暴露于0.4×10 ¹⁸、0.8×10 ¹⁸和1.2×10 ¹⁸ 离子/cm ²时，介电常数从PVA/PANI/银的0.43分别增加到0.56、1.23和4.18 。结果表明，经过辐照的复合材料的电特性发生了变化，这为这些样品在广泛的介电应用中的应用开辟了道路。