WS2 nanotubes dressed in gold and silver: Synthesis, optoelectronic properties, and NO2 sensing

Alexander Yu Polyakov; Lena Yadgarov; Vasily Lebedev; Ratibor G Chumakov; Lada V Yashina; Marina N Rumyantseva; Reshef Tenne; Eugene A Goodilin

doi:10.1063/5.0055823

WS2 nanotubes dressed in gold and silver: Synthesis, optoelectronic properties, and NO2 sensing

Alexander Yu Polyakov^*, Lena Yadgarov, Vasily Lebedev, Ratibor G Chumakov, Lada V Yashina, Marina N Rumyantseva, Reshef Tenne, Eugene A Goodilin

^*Corresponding author for this work

Department of Molecular Chemistry and Materials Science Perlman

Research output: Contribution to journal › Conference article › peer-review

Abstract

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 100°C. 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 (λmax = 530 nm) and its enhancement by plasmonic gold “nanoantennas” will be reported as well.

Original language	English
Number of pages	3
Journal	AIP Conference Proceedings
Issue number	1
DOIs	https://doi.org/10.1063/5.0055823
Publication status	Published - 22 Jun 2021
Event	INTERNATIONAL CONGRESS ON GRAPHENE, 2D MATERIALS AND APPLICATIONS (2D MATERIALS 2019) - Sochi, Russia Duration: 30 Sept 2019 → 4 Oct 2019

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title = "WS2 nanotubes dressed in gold and silver: Synthesis, optoelectronic properties, and NO2 sensing",

abstract = "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 100°C. 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 (λmax = 530 nm) and its enhancement by plasmonic gold “nanoantennas” will be reported as well.",

author = "Polyakov, {Alexander Yu} and Lena Yadgarov and Vasily Lebedev and Chumakov, {Ratibor G} and Yashina, {Lada V} and Rumyantseva, {Marina N} and Reshef Tenne and Goodilin, {Eugene A}",

year = "2021",

month = jun,

day = "22",

doi = "10.1063/5.0055823",

language = "English",

journal = "AIP Conference Proceedings",

issn = "0094-243X",

publisher = "American Institute of Physics",

number = "1",

note = "INTERNATIONAL CONGRESS ON GRAPHENE, 2D MATERIALS AND APPLICATIONS (2D MATERIALS 2019) ; Conference date: 30-09-2019 Through 04-10-2019",

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T1 - WS2 nanotubes dressed in gold and silver

T2 - INTERNATIONAL CONGRESS ON GRAPHENE, 2D MATERIALS AND APPLICATIONS (2D MATERIALS 2019)

AU - Polyakov, Alexander Yu

AU - Yadgarov, Lena

AU - Lebedev, Vasily

AU - Chumakov, Ratibor G

AU - Yashina, Lada V

AU - Rumyantseva, Marina N

AU - Tenne, Reshef

AU - Goodilin, Eugene A

PY - 2021/6/22

Y1 - 2021/6/22

N2 - 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 100°C. 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 (λmax = 530 nm) and its enhancement by plasmonic gold “nanoantennas” will be reported as well.

AB - 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 100°C. 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 (λmax = 530 nm) and its enhancement by plasmonic gold “nanoantennas” will be reported as well.

U2 - 10.1063/5.0055823

DO - 10.1063/5.0055823

M3 - Conference article

SN - 0094-243X

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

IS - 1

Y2 - 30 September 2019 through 4 October 2019

ER -

WS2 nanotubes dressed in gold and silver: Synthesis, optoelectronic properties, and NO2 sensing

Abstract

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