We incorporate the tools of Lévy processes and distributions to describe the photoluminescence of silicon nanocrystals. The method relies on two novel features: first we use exact forms of one-sided Lévy distributions to get an excellent reproduction of experimental data. Then we show that the dynamics leading to photoluminescence decay can be modelled in terms of fractional Fokker-Planck equation. © 2014 Elsevier B.V.
Photoluminescence decay of silicon nanocrystals and Lévy stable distributions
Dattoli, G.
2014-01-01
Abstract
We incorporate the tools of Lévy processes and distributions to describe the photoluminescence of silicon nanocrystals. The method relies on two novel features: first we use exact forms of one-sided Lévy distributions to get an excellent reproduction of experimental data. Then we show that the dynamics leading to photoluminescence decay can be modelled in terms of fractional Fokker-Planck equation. © 2014 Elsevier B.V.File in questo prodotto:
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