Polyvinylidene fluoride (PVDF) based polymer nanocomposites with ceramics as nanofiller have been investigated as a solution for energy storage devices due to their unique and attractive combination of processability and electrical properties. This work assesses two dopants (fluorine and nitrogen) for zinc oxide (ZnO) nanoparticles PVDF matrix composites as a means of improving dielectric properties targeting capacitive storage. Fluorine doping achieves improved performance compared to pure ZnO nanocomposites increasing the decomposition temperature by 15 °C to 463 °C with 15 wt% F-doped ZnO and reducing the weight loss by 4.2 %. The highest dielectric constant that can be achieved with the addition of fluorine is about 70 at room temperature, which is more than 3 times greater than that of pure ZnO nanocomposite. Nitrogen doping also enhances the permittivity of the nanocomposites at ambient temperature but limit enhancement at high temperature due to the lower activation energy.

中文翻译：

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氧化锌的氟和氮掺杂增强 PVDF 基颗粒复合材料的介电存储

以陶瓷为纳米填料的聚偏二氟乙烯 (PVDF) 基聚合物纳米复合材料由于其独特且有吸引力的可加工性和电性能组合，已被研究作为储能设备的解决方案。这项工作评估了氧化锌 (ZnO) 纳米粒子 PVDF 基复合材料的两种掺杂剂（氟和氮），作为改善电容存储介电性能的一种手段。与纯 ZnO 纳米复合材料相比，氟掺杂提高了性能，15 wt% F 掺杂 ZnO 的分解温度提高了 15 °C 至 463 °C，重量损失减少了 4.2%。添加氟后可达到的最高介电常数在室温下约为70，比纯ZnO纳米复合材料高3倍以上。氮掺杂还增强了纳米复合材料在环境温度下的介电常数，但由于较低的活化能而限制了高温下的增强。