Polyvinylpyrrolidone as a Stabilizer in Synthesis of AgInS<sub>2</sub> Quantum Dots

Oleg Korepanov; Olga Aleksandrova; Dmitrii Firsov; Zamir Kalazhokov; Demid Kirilenko; Dmitriy Kozodaev; Vasilii Matveev; Dmitriy Mazing; Vyacheslav Moshnikov

doi:10.3390/nano12142357

Nanomaterials (Jul 2022)

Polyvinylpyrrolidone as a Stabilizer in Synthesis of AgInS<sub>2</sub> Quantum Dots

Oleg Korepanov,
Olga Aleksandrova,
Dmitrii Firsov,
Zamir Kalazhokov,
Demid Kirilenko,
Dmitriy Kozodaev,
Vasilii Matveev,
Dmitriy Mazing,
Vyacheslav Moshnikov

Affiliations

Oleg Korepanov: Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia
Olga Aleksandrova: Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia
Dmitrii Firsov: Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia
Zamir Kalazhokov: Institute of Physics and Mathematics, Kabardino-Balkarian State University, n.a. Kh.M. Berbekov, 360004 Nalchik, Russia
Demid Kirilenko: Ioffe Institute, 194021 Saint Petersburg, Russia
Dmitriy Kozodaev: Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia
Vasilii Matveev: Petersburg Nuclear Physics Institute Named by B.P.Konstantinov of NRC «Kurchatov Institute», 188300 Gatchina, Russia
Dmitriy Mazing: Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia
Vyacheslav Moshnikov: Micro- and Nanoelectronics Department, Saint Petersburg Electrotechnical University “LETI”, 197022 Saint Petersburg, Russia

DOI: https://doi.org/10.3390/nano12142357
Journal volume & issue: Vol. 12, no. 14
p. 2357

Abstract

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A synthesis protocol of polyvinylpyrrolidone-capped AgInS2 quantum dots in aqueous solution is reported. Nanoparticle morphology and chemical composition were studied by means of TEM, XRD, XPS, and FTIR. The obtained quantum dots were luminescent in the visible range. The photoluminescence intensity dependence on the polyvinylpyrrolidone amount was demonstrated. The wavelength of the emission maximum varied with changing the [Ag]:[In] molar ratio. The temperature dependence of the photoluminescence intensity of the polyvinylpyrrolidone-capped AgInS2 quantum dots was investigated within the temperature range of 11–294 K.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

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