Enhancing the dielectric characteristics of argon beam irradiated polymer composite films

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-05-16 DOI:10.1680/jsuin.24.00003

Reem Altuijri, M. M. Abdelhamied, A. Atta, Nuha Al-Harbi, A. Henaish

引用次数: 0

Abstract

In this study, the casting prepration technique is applied to produce flexible CA/PANI composite films. The CA/PANI samples which are composed of polyaniline (PANI) and cellulose acetate (CA) are directed to applied in electrical storage devices. The XRD, FTIR, TEM, Ramman and SEM techniques were employed for analyzing the produced films. The TEM show the PANI were formed with the particle size less than 100 nm. Next, argon-ion beam with varying fluencies (4x1014, 8x1014 and 12x1014 ions/cm2) bombard the CA/PANI samples. In frequency of 20 Hz to 5.5 MHz, the dielectric properties of CA/PANI were significantly altered by argon beam treatment. The irradiated sample by 12x1014 ions/cm−2 at frequency 50 Hz resulted in an improvement in the dielectric constant ε′ from 36.4 for the unirradiated CA/PANI to 108.6. Additionally, the relaxation time decreased from 1.63x10−4 sec to 2.08x10−5 sec. The results of this work open the ways for using the irradiated CA/PANI in a number of devices, such as supercapacitors and batteries.

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增强氩束辐照聚合物复合薄膜的介电特性

本研究采用浇铸预处理技术生产柔性 CA/PANI 复合薄膜。由聚苯胺（PANI）和醋酸纤维素（CA）组成的 CA/PANI 样品将应用于蓄电设备。研究人员采用 XRD、傅立叶变换红外光谱、TEM、拉曼光谱和扫描电子显微镜技术来分析所制得的薄膜。TEM 显示，形成的 PANI 粒径小于 100 nm。接着，不同流度（4x1014、8x1014 和 12x1014 离子/cm2 ）的氩离子束轰击 CA/PANI 样品。在 20 Hz 至 5.5 MHz 频率范围内，CA/PANI 的介电性能在氩离子束的处理下发生了显著变化。在频率为 50 Hz 时，用 12x1014 离子/cm-2 对样品进行辐照，介电常数 ε′ 从未遭辐照的 CA/PANI 的 36.4 提高到 108.6。此外，弛豫时间从 1.63x10-4 秒缩短到 2.08x10-5秒。这项研究成果为将辐照 CA/PANI 应用于超级电容器和电池等多种设备开辟了道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.