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Open AccessArticle

Monitoring of the Mechanism of Mn Ions Incorporation into Quantum Dots by Optical and EPR Spectroscopy

1
Kazan National Research Technological University, 68 Karl Marx str., 420015 Kazan, Russia
2
Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS, 420029 Kazan, Russia
*
Author to whom correspondence should be addressed.
This paper is an expanded version of Galyametdinov, S.Y.G.; Sagdeev, D.O.; Sukhanov, A.A.; Voronkova, V.K.; Shamilov, R.R. Monitoring of Mn ions incorporation into quantum dots by EPR and luminescence spectroscopy. In Proceedings of the 4th International Conference on Applications of Optics and Photonics, Lisbon, Portugal, 31 May–4 June 2019, doi:10.1117/12.2530906.
Photonics 2019, 6(4), 107; https://doi.org/10.3390/photonics6040107
Received: 17 September 2019 / Revised: 16 October 2019 / Accepted: 17 October 2019 / Published: 19 October 2019
Synthesis of nanoparticles doped with various ions can significantly expand their functionality. The conditions of synthesis exert significant influence on the distribution nature of doped ions and therefore the physicochemical properties of nanoparticles. In this paper, a correlation between the conditions of synthesis of manganese-containing cadmium sulfide or zinc sulfide nanoparticles and their optical and magnetic properties is analyzed. Electron paramagnetic resonance was used to study the distribution of manganese ions in nanoparticles and the intensity of interaction between them depending on the conditions of synthesis of nanoparticles, the concentration of manganese, and the type of initial semiconductor. The increase of manganese concentration is shown to result in the formation of smaller CdS-based nanoparticles. Luminescent properties of nanoparticles were studied. The 580 nm peak, which is typical for manganese ions, becomes more distinguished with the increase of their concentration and the time of synthesis. View Full-Text
Keywords: nanoparticles; quantum dots; electron paramagnetic resonance (EPR); luminescence; manganese; cadmium sulfide; zinc sulfide nanoparticles; quantum dots; electron paramagnetic resonance (EPR); luminescence; manganese; cadmium sulfide; zinc sulfide
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Galyametdinov, Y.G.; Sagdeev, D.O.; Sukhanov, A.A.; Voronkova, V.K.; Shamilov, R.R. Monitoring of the Mechanism of Mn Ions Incorporation into Quantum Dots by Optical and EPR Spectroscopy. Photonics 2019, 6, 107.

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