Photoluminescence from Si nanocrystals embedded in a CaF2 dielectric matrix and formed on the surface of a Si(111) substrate is demonstrated. The photoluminescence was clearly seen in a dark room at room temperature. The typical photoluminescence spectrum has a 664 nm peak wavelength and a 134 nm full width at half maximum (FWHM). The photoluminescence was not observed at a lower temperature (77 K).
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 10–14, February, 2021.
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Velichko, A.A., Ilyushin, V.A., Krupin, A.Y. et al. Luminescence of Nanocrystalline Si in (Si + CaF2)/CaF2 Structures in the Visible Range of the Spectrum. Russ Phys J 64, 198–202 (2021). https://doi.org/10.1007/s11182-021-02316-3
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DOI: https://doi.org/10.1007/s11182-021-02316-3