TY - JOUR
T1 - Characterization of silver nanowire layers in the terahertz frequency range
AU - Przewłoka, Aleksandra
AU - Smirnov, Serguei
AU - Nefedova, Irina
AU - Krajewska, Aleksandra
AU - Nefedov, Igor S.
AU - Demchenko, Petr S.
AU - Zykov, Dmitry V.
AU - Chebotarev, Valentin S.
AU - But, Dmytro B.
AU - Stelmaszczyk, Kamil
AU - Dub, Maksym
AU - Zasada, Dariusz
AU - Lisauskas, Alvydas
AU - Oberhammer, Joachim
AU - Khodzitsky, Mikhail K.
AU - Knap, Wojciech
AU - Lioubtchenko, Dmitri
N1 - Funding Information:
Funding: The work was supported by the European Union’s Horizon 2020 FET Open project TERAmeasure (grant agreement No 862788), by the “International Research Agendas” program of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund (No. MAB/2018/9), by the statutory sources of the Department of Structural Materials, Military University of Technology (project no. UGB 22–846/2021/WAT) and by the Ministry of Science and Higher Education of the Russian Federation (project no. FSRR-2020-0004), (Igor S. Nefedov). A. Krajewska was supported by the Foundation for Polish Science (FNP).
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - Thin layers of silver nanowires are commonly studied for transparent electronics. However, reports of their terahertz (THz) properties are scarce. Here, we present the electrical and optical properties of thin silver nanowire layers with increasing densities at THz frequencies. We demonstrate that the absorbance, transmittance and reflectance of the metal nanowire layers in the frequency range of 0.2 THz to 1.3 THz is non-monotonic and depends on the nanowire dimensions and filling factor. We also present and validate a theoretical approach describing well the experimental results and allowing the fitting of the THz response of the nanowire layers by a Drude–Smith model of conductivity. Our results pave the way toward the application of silver nanowires as a prospective material for transparent and conductive coatings, and printable antennas operating in the terahertz range—significant for future wireless communication devices.
AB - Thin layers of silver nanowires are commonly studied for transparent electronics. However, reports of their terahertz (THz) properties are scarce. Here, we present the electrical and optical properties of thin silver nanowire layers with increasing densities at THz frequencies. We demonstrate that the absorbance, transmittance and reflectance of the metal nanowire layers in the frequency range of 0.2 THz to 1.3 THz is non-monotonic and depends on the nanowire dimensions and filling factor. We also present and validate a theoretical approach describing well the experimental results and allowing the fitting of the THz response of the nanowire layers by a Drude–Smith model of conductivity. Our results pave the way toward the application of silver nanowires as a prospective material for transparent and conductive coatings, and printable antennas operating in the terahertz range—significant for future wireless communication devices.
KW - AgNWs
KW - Silver nanowire
KW - Terahertz frequencydomain spectroscopy
KW - Terahertz time-domain spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85120756067&partnerID=8YFLogxK
U2 - 10.3390/ma14237399
DO - 10.3390/ma14237399
M3 - Article
AN - SCOPUS:85120756067
VL - 14
JO - Materials
JF - Materials
SN - 1996-1944
IS - 23
M1 - 7399
ER -