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Raman study of laser-induced formation of II–VI nanocrystals in zinc-doped As–S(Se) films

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Abstract

Zn-doped As2Se3 and As2S3 films were prepared by thermal evaporation. Their amorphous structure was confirmed by Raman spectroscopy. Zinc chalcogenide nanocrystals can be formed in the films under laser irradiation due to the photoenhanced diffusion of atoms in the arsenic chalcogenide films, which enables aggregation of Zn and S(Se) atoms in nanocrystals. For As2S3:Zn films, not only ZnS, but also ZnO crystallites can be formed under irradiation with UV laser light due to oxidation of the film surface with abundant zinc atoms.

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Acknowledgements

Yuriy M. Azhniuk is grateful to TU Chemnitz (Grant no. 1234) for the financial support of his research stay at the university.

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Correspondence to Yuriy M. Azhniuk.

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Azhniuk, Y.M., Lopushansky, V.V., Loya, V.Y. et al. Raman study of laser-induced formation of II–VI nanocrystals in zinc-doped As–S(Se) films. Appl Nanosci 10, 4831–4837 (2020). https://doi.org/10.1007/s13204-020-01269-2

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  • DOI: https://doi.org/10.1007/s13204-020-01269-2

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