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Research Article| June 22 2021

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

Alexander Yu. Polyakov;

Alexander Yu. Polyakov ^a)

1

Kurnakov Institute of General and Inorganic Chemistry

, 31 Leninskiy pr., Moscow 119991,

Russia

2

Faculty of Materials Science, M.V. Lomonosov Moscow State University

, 1-73 Leninskiye Gory, Moscow 119991,

Russia

^a)Corresponding author: [email protected]

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Lena Yadgarov;

Lena Yadgarov

3

Department of Materials and Interfaces, Weizmann Institute of Science

, Rehovot 76100,

Israel

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Vasily Lebedev;

Vasily Lebedev

4

Bernal Institute, University of Limerick

, Limerick V94 T9PX,

Ireland

6

Faculty of Chemistry, M.V. Lomonosov Moscow State University

, 1-3 Leninskiye Gory, Moscow 119991,

Russia

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Ratibor G. Chumakov;

Ratibor G. Chumakov

5

National Research Center “Kurchatov Institute”

, Moscow 123182,

Russia

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Lada V. Yashina;

Lada V. Yashina

6

Faculty of Chemistry, M.V. Lomonosov Moscow State University

, 1-3 Leninskiye Gory, Moscow 119991,

Russia

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Marina N. Rumyantseva;

Marina N. Rumyantseva

6

Faculty of Chemistry, M.V. Lomonosov Moscow State University

, 1-3 Leninskiye Gory, Moscow 119991,

Russia

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Reshef Tenne;

Reshef Tenne

3

Department of Materials and Interfaces, Weizmann Institute of Science

, Rehovot 76100,

Israel

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Eugene A. Goodilin

Eugene A. Goodilin

2

Faculty of Materials Science, M.V. Lomonosov Moscow State University

, 1-73 Leninskiye Gory, Moscow 119991,

Russia

6

Faculty of Chemistry, M.V. Lomonosov Moscow State University

, 1-3 Leninskiye Gory, Moscow 119991,

Russia

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Author & Article Information

Alexander Yu. Polyakov ^1,2,a),

,

Lena Yadgarov ³

,

Vasily Lebedev ^4,6

,

Ratibor G. Chumakov ⁵

,

Lada V. Yashina ⁶

,

Marina N. Rumyantseva ⁶

,

Reshef Tenne ³

,

Eugene A. Goodilin ^2,6

1

Kurnakov Institute of General and Inorganic Chemistry

, 31 Leninskiy pr., Moscow 119991,

Russia

2

Faculty of Materials Science, M.V. Lomonosov Moscow State University

, 1-73 Leninskiye Gory, Moscow 119991,

Russia

3

Department of Materials and Interfaces, Weizmann Institute of Science

, Rehovot 76100,

Israel

4

Bernal Institute, University of Limerick

, Limerick V94 T9PX,

Ireland

6

Faculty of Chemistry, M.V. Lomonosov Moscow State University

, 1-3 Leninskiye Gory, Moscow 119991,

Russia

5

National Research Center “Kurchatov Institute”

, Moscow 123182,

Russia

^a)Corresponding author: [email protected]

^*

Currently at Nano and Biophysics, Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden

Currently at Department of Chemical Engineering, Ariel University, Ariel 4070814, Israel

AIP Conf. Proc. 2359, 020025 (2021)

https://doi.org/10.1063/5.0055823

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 Au^III and Ag^I 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 (λ_max = 530 nm) and its enhancement by plasmonic gold “nanoantennas” will be reported as well.

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