Photoconductivity of explosive percolation in conductive polymer/graphene oxide nanocomposite films

IF 3.1 4区工程技术 Q2 POLYMER SCIENCE

Polymers for Advanced Technologies Pub Date : 2024-07-17 DOI:10.1002/pat.6494

Ahmad D. Telfah, Qais M. Al‐Bataineh, Ahmad A. Ahmad, Ihsan Aljarrah, Khansaa Al‐Essa, Milad Houshmand, Johannes Etzkorn, Tamara Appel

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引用次数: 0

Abstract

In this study, we explored the behavior of protonated polyaniline/graphene oxide (PANI‐CSA/GO) nanocomposite films with varying GO concentrations, focusing on the novel phenomenon of explosive percolation. We observed a significant increase in electrical conductivity at the explosive percolation threshold, attributed to the emergence of a percolating metallic pathway. This discovery positions PANI‐CSA/GO films as promising materials for various electronic and electrical engineering applications. Additionally, the films demonstrated consistent and repeatable photoconductivity, showing potential for use in high‐performance UV‐photodetectors, photoactive layers in solar cells, light‐emitting diodes, and energy storage devices. Structural analyses using fourier transform infrared spectroscopy (FTIR) and x‐ray diffraction (XRD) confirmed successful GO incorporation within the PANI‐CSA matrix. Different morphological features were observed depending on the GO volume fraction, with increased GO enhancing thermal stability in the conductive zone. Our findings highlight the immense potential of PANI‐CSA/GO nanocomposite films in advanced electronic applications, emphasizing their novel conductive and photoconductive properties and improved thermal stability.

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导电聚合物/氧化石墨烯纳米复合薄膜中爆炸渗流的光电导性

在本研究中，我们探索了质子化聚苯胺/氧化石墨烯（PANI-CSA/GO）纳米复合薄膜在不同 GO 浓度下的行为，重点研究了爆炸性渗流的新现象。我们观察到在爆炸性渗流阈值处电导率显著增加，这归因于渗流金属通路的出现。这一发现使 PANI-CSA/GO 薄膜成为各种电子和电气工程应用的理想材料。此外，这些薄膜还表现出一致且可重复的光电导性，显示出在高性能紫外线光电探测器、太阳能电池光活性层、发光二极管和储能设备中的应用潜力。利用傅立叶变换红外光谱（FTIR）和 X 射线衍射（XRD）进行的结构分析证实，在 PANI-CSA 基质中成功地加入了 GO。根据 GO 体积分数的不同，可观察到不同的形态特征，GO 的增加提高了导电区的热稳定性。我们的研究结果凸显了 PANI-CSA/GO 纳米复合薄膜在先进电子应用中的巨大潜力，强调了其新颖的导电和光导特性以及更好的热稳定性。

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来源期刊

Polymers for Advanced Technologies 工程技术-高分子科学

CiteScore

6.20

自引率

5.90%

发文量

337

审稿时长

2.1 months

期刊介绍： Polymers for Advanced Technologies is published in response to recent significant changes in the patterns of materials research and development. Worldwide attention has been focused on the critical importance of materials in the creation of new devices and systems. It is now recognized that materials are often the limiting factor in bringing a new technical concept to fruition and that polymers are often the materials of choice in these demanding applications. A significant portion of the polymer research ongoing in the world is directly or indirectly related to the solution of complex, interdisciplinary problems whose successful resolution is necessary for achievement of broad system objectives. Polymers for Advanced Technologies is focused to the interest of scientists and engineers from academia and industry who are participating in these new areas of polymer research and development. It is the intent of this journal to impact the polymer related advanced technologies to meet the challenge of the twenty-first century. Polymers for Advanced Technologies aims at encouraging innovation, invention, imagination and creativity by providing a broad interdisciplinary platform for the presentation of new research and development concepts, theories and results which reflect the changing image and pace of modern polymer science and technology. Polymers for Advanced Technologies aims at becoming the central organ of the new multi-disciplinary polymer oriented materials science of the highest scientific standards. It will publish original research papers on finished studies; communications limited to five typewritten pages plus three illustrations, containing experimental details; review articles of up to 40 pages; letters to the editor and book reviews. Review articles will normally be published by invitation. The Editor-in-Chief welcomes suggestions for reviews.