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A Study of the Photoluminescence Spectra of AgInS2/ZnS Nanocrystals under γ-Irradiation

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Abstract

The influence of different doses of γ-radiation from a 137Cs source on photoluminescence of nanocrystals of the Ag–In–S system with a shell of wider-gap ZnS semiconductor and without it has been investigated. The dynamics of change in the nanocrystal photoluminescence depending on the γ-irradiation dose is presented. It is established that nanoparticles of the AgInS2/ZnS system retain their photoluminescence properties and colloidal stability at the absorbed dose up to 6 × 103 Gy (with respect to water). The residual photoluminescence is retained until the absorbed dose is 106 Gy (with respect to H2O). It is shown that AgInS2/ZnS nanocrystals can be used in medical and biological studies, which call for enhanced resistance to γ-radiation.

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Correspondence to D. S. Mazing.

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Translated by A. Sin’kov

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Mazing, D.S., Romanov, N.M., Moshnikov, V.A. et al. A Study of the Photoluminescence Spectra of AgInS2/ZnS Nanocrystals under γ-Irradiation. Tech. Phys. Lett. 45, 1097–1099 (2019). https://doi.org/10.1134/S1063785019110087

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  • DOI: https://doi.org/10.1134/S1063785019110087

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