WS2nanotubes dressed in gold and silver: Synthesis, optoelectronic properties, and NO2sensing

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

פרסום מחקרי: פרק בספר / בדוח / בכנספרסום בספר כנסביקורת עמיתים

1 ציטוט ‏(Scopus)

תקציר

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.

שפה מקוריתאנגלית
כותר פרסום המארחProceedings of International Congress on Graphene, 2D Materials and Applications, 2D MATERIALS 2019
עורכיםValentyn Volkov, Alexey Nikitin, Aleksey V. Arsenin
מסת"ב (אלקטרוני)9780735441033
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 22 יוני 2021
אירוע1st International Congress on Graphene, 2D Materials and Applications, 2D MATERIALS 2019 - Sochi, רוסיה
משך הזמן: 30 ספט׳ 20194 אוק׳ 2019

סדרות פרסומים

שםAIP Conference Proceedings
כרך2359
ISSN (מודפס)0094-243X
ISSN (אלקטרוני)1551-7616

כנס

כנס1st International Congress on Graphene, 2D Materials and Applications, 2D MATERIALS 2019
מדינה/אזוררוסיה
עירSochi
תקופה30/09/194/10/19

טביעת אצבע

להלן מוצגים תחומי המחקר של הפרסום 'WS2nanotubes dressed in gold and silver: Synthesis, optoelectronic properties, and NO2sensing'. יחד הם יוצרים טביעת אצבע ייחודית.

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