Abstract
Silicon nanopowders produced by electron-beam-induced evaporation of a bulk silicon sample in an argon atmosphere are studied by the photoluminescence technique and Raman scattering spectroscopy. A photoluminescence peak in the visible region of the spectrum has been detected at room temperature in powders consisting of silicon nanocrystals. The strong short-wavelength shift of the photoluminescence peak can be attributed to the quantum size effect of electrons and holes in small silicon nanocrystals (about 2 nm). The size of silicon nanocrystals is determined by analyzing Raman spectra, and it is consistent with estimates obtained from photoluminescence data.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\)544-02} Fiziki, Vol. 80, No. 8, 2004, pp. 619–622.
Original Russian Text Copyright © 2004 by Efremov, Volodin, Marin, Arzhannikova, Gorya\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\)nov, Korchagin, Cherepkov, Lavrukhin, Fadeev, Salimov, Bardakhanov.
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Efremov, M.D., Volodin, V.A., Marin, D.V. et al. Visible photoluminescence from silicon nanopowders produced by silicon evaporation in a high-power electron beam. Jetp Lett. 80, 544–547 (2004). https://doi.org/10.1134/1.1846116
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DOI: https://doi.org/10.1134/1.1846116