A Novel Approach to the Fabrication of CdE (E = S, Se, Te) Core/Shell Nanoparticles Stabilized by Dense-Shell Polyalkylene Chalcogenides

A new method is proposed for obtaining quantum dots based on cadmium chalcogenides CdE (E = S, Se, Te) by chemisorption of polyalkylene chalcogenides on the surface of nanoparticles with the formation of the dendrimeric architecture of nanocomposites. The obtained materials are of interest in variou...

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Bibliographic Details
Published inJournal of cluster science Vol. 35; no. 1; pp. 225 - 235
Main Authors Khutsishvili, Spartak S., Grabelnykh, Valentina A., Korchevin, Nikolay A., Tikhonov, Nikolay I., Klimenkov, Igor V., Rozentsveig, Igor B.
Format Journal Article
LanguageEnglish
Published New York Springer US 2024
Springer Nature B.V
Subjects
Catalysis
Chalcogenides
Chemical elements
Chemisorption
Chemistry
Chemistry and Materials Science
Composite materials
Conduction electrons
Core-shell particles
Electron microscopy
Electron paramagnetic resonance
Fourier transforms
Inorganic Chemistry
Ligands
Morphology
Nanochemistry
Nanocomposites
Nanoparticles
Original Paper
Photoluminescence
Physical Chemistry
Quantum dots
Selenium
Size effects
Spectrum analysis
Tellurium
X-rays
Nanoparticles
Fluorescence
Nanocomposite
Quantum dots
Cadmium chalcogenide
EPR
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Summary:A new method is proposed for obtaining quantum dots based on cadmium chalcogenides CdE (E = S, Se, Te) by chemisorption of polyalkylene chalcogenides on the surface of nanoparticles with the formation of the dendrimeric architecture of nanocomposites. The obtained materials are of interest in various applications in engineering and biomedicine. Nanosystems are long-term aggregatively stable, and the sizes of the nanoparticles were estimated from X-ray diffraction data using the Scherrer formula and transmission electron microscopy. Other structural characteristics and paramagnetic properties of nanocomposites were studied by modern physicochemical methods (Fourier transform infrared spectroscopy, scanning electron microscopy, photoluminescence measurements, etc.). In the electron paramagnetic resonance spectra of nanocomposites the main signal due to conduction electrons was recorded, which demonstrates the quantum size effect of the resulting quantum dots.
ISSN:1040-7278
1572-8862
DOI:10.1007/s10876-023-02477-w