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Title: Printable aligned single-walled carbon nanotube film with outstanding thermal conductivity and electromagnetic interference shielding performance
Authors: Zeng, Zhihui
Wang, Gang
Wolan, Brendan F.
Wu, Na
Wang, Changxian
Zhao, Shanyu
Yue, Shengying
Li, Bin
He, Weidong
Liu, Jiurong
Lyding, Joseph W.
Keywords: Engineering::Materials
Issue Date: 2022
Source: Zeng, Z., Wang, G., Wolan, B. F., Wu, N., Wang, C., Zhao, S., Yue, S., Li, B., He, W., Liu, J. & Lyding, J. W. (2022). Printable aligned single-walled carbon nanotube film with outstanding thermal conductivity and electromagnetic interference shielding performance. Nano-Micro Letters, 14(1).
Journal: Nano-Micro Letters 
Abstract: Ultrathin, lightweight, and flexible aligned single-walled carbon nanotube (SWCNT) films are fabricated by a facile, environmentally friendly, and scalable printing methodology. The aligned pattern and outstanding intrinsic properties render "metal-like" thermal conductivity of the SWCNT films, as well as excellent mechanical strength, flexibility, and hydrophobicity. Further, the aligned cellular microstructure promotes the electromagnetic interference (EMI) shielding ability of the SWCNTs, leading to excellent shielding effectiveness (SE) of ~ 39 to 90 dB despite a density of only ~ 0.6 g cm-3 at thicknesses of merely 1.5-24 µm, respectively. An ultrahigh thickness-specific SE of 25 693 dB mm-1 and an unprecedented normalized specific SE of 428 222 dB cm2 g-1 are accomplished by the freestanding SWCNT films, significantly surpassing previously reported shielding materials. In addition to an EMI SE greater than 54 dB in an ultra-broadband frequency range of around 400 GHz, the films demonstrate excellent EMI shielding stability and reliability when subjected to mechanical deformation, chemical (acid/alkali/organic solvent) corrosion, and high-/low-temperature environments. The novel printed SWCNT films offer significant potential for practical applications in the aerospace, defense, precision components, and smart wearable electronics industries.
ISSN: 2311-6706
DOI: 10.1007/s40820-022-00883-9
Schools: School of Materials Science and Engineering 
Rights: © The Author(s) 2022. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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