posted on 2022-10-14, 11:25authored byAlexander Yu. Polyakov, Lena Yadgarov, VASILY LEBEDEVVASILY LEBEDEV, Ratibor G. Chumakov, Lada V. Yashina, Marina N. Rumyantseva, Reshef Tenne, Eugene A. Goodilin
This conference contribution is focused on decoration of WS2 nanotubes (NT-WS2) with gold and silver
nanoparticles via facile routes implying direct reaction of tungsten disulfide with water-soluble AuIII and AgI
species at
100oC. The underlying mechanism of these interactions will be discussed in details based on extensive studies of reaction
mixtures and resulting metal–NT-WS2 nanocomposites, including thorough X-ray photoelectron spectroscopy (XPS)
analysis. Surprising features in optical spectra of the designed nanocomposites would be reported, including suppression
of plasmon resonance in tiny noble metal nanoparticles (< 10 nm in diameter) grown onto NT-WS2. The plasmonic features
of individual gold nanoparticles on the surface of disulfide nanotube were also characterized by electron energy loss
spectroscopy in scanning transmission electron microscopy mode (STEM-EELS). Photoresistive NO2-sensing response of
NT-WS2 under green light illumination (Ȝmax = 530 nm) and its enhancement by plasmonic gold “nanoantennas” will be
reported as well.
History
Publication
AIP Conference Proceedings;2359, 020025
Publisher
American Institute of Physics
Note
peer-reviewed
The full text of this article will not be available in ULIR until the embargo expires on the 22/06/2022
Rights
Copyright 2021 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics The following article appeared in AIP Conference Proceedings 2359, 020025 (2021) and may be found at https://doi.org/10.1063/5.0055823