kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Highly efficient absorption of THz radiation using waveguide-integrated carbon nanotube/cellulose aerogels
Inst High Pressure Phys PAS, CENTERA Labs, Ul Sokolowska, PL-01142 Warsaw, Poland..
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Micro and Nanosystems.ORCID iD: 0000-0002-7739-3178
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Micro and Nanosystems. TeraSi AB, Kolviksvagen 38, SE-13933 Stockholm, Sweden..ORCID iD: 0000-0002-8514-6863
KTH, School of Electrical Engineering and Computer Science (EECS), Intelligent systems, Micro and Nanosystems.ORCID iD: 0000-0003-0368-1668
Show others and affiliations
2022 (English)In: APPLIED MATERIALS TODAY, ISSN 2352-9407, Vol. 29, article id 101684Article in journal (Refereed) Published
Abstract [en]

This article presents the preparation, compositional and electromagnetic characterization of modified few-walled carbon nanotubes/nanofibrillar cellulose (FWCNT/NFC) aerogels integrated in a standard terahertz hollow waveguide and studies their operation as absorbers of electromagnetic waves in the WR-3.4 band (220-330 GHz). Hybrid aerogels consisting of different weight ratios of NFC and modified FWCNT are prepared by freezedrying and characterized through scanning electron microscopy and Raman spectroscopy, and then placed within waveguide cassettes in a simple, low-cost and efficient way that requires no special equipment. A broadband measurement setup is employed for examining the electromagnetic response of the materials. It is found that the materials are excellent absorbers with an average shielding efficiency of 66 dB in the best case and return loss above 10 dB across the band with a flat frequency response. FWCNT aerogels are assessed as a promising candidate for terahertz waveguide terminations.

Place, publisher, year, edition, pages
Elsevier BV , 2022. Vol. 29, article id 101684
Keywords [en]
Carbon nanotubes, Nanofibrillar cellulose, Aerogels, Absorber, Sub-THz, Waveguide integrated absorbers
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-322865DOI: 10.1016/j.apmt.2022.101684ISI: 000891769900004Scopus ID: 2-s2.0-85141791885OAI: oai:DiVA.org:kth-322865DiVA, id: diva2:1724561
Note

QC 20230109

Available from: 2023-01-09 Created: 2023-01-09 Last updated: 2023-01-09Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Xenidis, NikolaosCampion, JamesSmirnov, SergueiOberhammer, JoachimLioubtchenko, Dmitri

Search in DiVA

By author/editor
Xenidis, NikolaosCampion, JamesSmirnov, SergueiNasibulin, AlbertOberhammer, JoachimLioubtchenko, Dmitri
By organisation
Micro and Nanosystems
Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 38 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf