Large-Area Printed PEDOT:PSS Shielding and Frequency Selective Surface (FSS) on Textiles

IF 4.5 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials Interfaces Pub Date : 2026-08-04 Epub Date: 2026-07-01 DOI:10.1002/admi.70584

Benjamin King, Mahmoud Wagih

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引用次数: 0

Abstract

Conductive polymers, such as Poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS), have been widely investigated for radio frequency (RF) and microwave electromagnetic shielding. However, achieving high frequency-selectivity remains challenging due to their low conductivity, leading to a high sheet resistance. Herein, we report for the first time a screen-printed, flexible frequency-selective surface (FSS) based on multilayer PEDOT: PSS films on both rough nonwoven textiles and textured paper-based surfaces. Bulk PEDOT: PSS films demonstrate increasing shielding effectiveness with layer thickness and conductivity that is dependent on the substrate's texture and absorbance. On nonwoven polyester/cellulose composite fabric, 20-layer films yield a DC sheet resistance of 5 Ω/□ and a shielding effectiveness of 32 dB (98.88%) across the 3.5 to 6 GHz frequency band. A similar screen-printed PEDOT: PSS FSS filters signals as a band-stop filter at 4.4 GHz with a half-power bandwidth of 450 MHz, achieving a Quality Factor of 9.2, and in-band shielding of 13 dB, surpassing printed surfaces using metallic inks and demonstrating the suitability of conducting polymers in passive, flexible, and large-area band-filtering devices.

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纺织品上大面积印刷PEDOT:PSS屏蔽和频率选择表面（FSS）

导电聚合物，如聚（3,4-乙烯二氧噻吩）聚苯乙烯磺酸盐（PEDOT: PSS），已被广泛研究用于射频（RF）和微波电磁屏蔽。然而，由于其低电导率，导致高片电阻，实现高频选择性仍然具有挑战性。在此，我们首次报道了一种基于多层PEDOT: PSS薄膜的丝网印刷柔性频率选择表面（FSS），可用于粗糙的非织造纺织品和有纹理的纸基表面。大块PEDOT: PSS薄膜的屏蔽效果随着层厚和电导率的增加而增加，这取决于衬底的质地和吸光度。在无纺布聚酯/纤维素复合织物上，20层薄膜在3.5至6 GHz频段的直流电阻为5 Ω/□，屏蔽效率为32 dB（98.88%）。类似的丝网印刷PEDOT: PSS FSS滤波信号作为带阻滤波器在4.4 GHz，半功率带宽为450 MHz，达到9.2的质量因子和13 dB的带内屏蔽，超过了使用金属油墨印刷的表面，并证明了导电聚合物在无源、柔性和大面积带滤器件中的适用性。

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

Advanced Materials Interfaces CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

8.40

自引率

5.60%

发文量

1174

审稿时长

1.3 months

期刊介绍： Advanced Materials Interfaces publishes top-level research on interface technologies and effects. Considering any interface formed between solids, liquids, and gases, the journal ensures an interdisciplinary blend of physics, chemistry, materials science, and life sciences. Advanced Materials Interfaces was launched in 2014 and received an Impact Factor of 4.834 in 2018. The scope of Advanced Materials Interfaces is dedicated to interfaces and surfaces that play an essential role in virtually all materials and devices. Physics, chemistry, materials science and life sciences blend to encourage new, cross-pollinating ideas, which will drive forward our understanding of the processes at the interface. Advanced Materials Interfaces covers all topics in interface-related research: Oil / water separation, Applications of nanostructured materials, 2D materials and heterostructures, Surfaces and interfaces in organic electronic devices, Catalysis and membranes, Self-assembly and nanopatterned surfaces, Composite and coating materials, Biointerfaces for technical and medical applications. Advanced Materials Interfaces provides a forum for topics on surface and interface science with a wide choice of formats: Reviews, Full Papers, and Communications, as well as Progress Reports and Research News.