Unique correlation between electrical, structural properties and electromagnetic shielding properties of carbon nanotube sheets

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2024-04-15 DOI:10.1088/2631-6331/ad3ee0

Minseouk Choi, Young Shik Cho, Kyung Tae Park, Kyunbae Lee, Keun-Young Shin, Yeon-Ho Jung, Taehoon Kim

引用次数: 0

Abstract

Correlation between electrical, structural properties and electromagnetic shielding efficiency (EMI SE) of carbon nanotube sheets (CNTSs) was investigated. Solvent densification of CNTSs led to enhancements of carbon nanotube bundling behavior and densification in the thickness direction while maintaining the areal density of the CNTSs. These structural modifications resulted in enhanced electrical properties and reduced sheet thickness by modifying the microstructure and bundling characteristics. Remarkably, contrary to conventional EMI shielding materials, the sheet resistance which reflects bundling behavior and microstructure of CNTSs, is the critical factor affecting the EMI SE of the CNTSs rather than electrical conductivity. The findings provide fundamental insights essential for the design of EMI shielding films incorporating carbon nanotubes

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碳纳米管片的电气、结构特性与电磁屏蔽特性之间的独特相关性

研究了碳纳米管片（CNTSs）的电气、结构特性与电磁屏蔽效率（EMI SE）之间的相关性。碳纳米管片的溶剂致密化导致了碳纳米管束行为的增强和厚度方向的致密化，同时保持了碳纳米管片的面积密度。这些结构改性通过改变微观结构和成束特性，增强了电性能并减小了薄片厚度。值得注意的是，与传统的 EMI 屏蔽材料相反，反映 CNTS 束状行为和微观结构的薄片电阻是影响 CNTS EMI SE 的关键因素，而不是导电性。这些发现为设计含有碳纳米管的 EMI 屏蔽膜提供了重要的基本见解。

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 Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico