Review Article

Silicon Nanocrystals: Fundamental Theory and Implications for Stimulated Emission

Figure 21

Effect of carrier migration on the PL histogram of a silicon NC ensemble with a lognormal distribution , , and volume fill = 35%. The PL spectrum is strongly redshifted as a result of tunneling and Forster transfer in this densely packed ensemble. For this simulation, there were no non-radiative defects and infinte barriers were assumed. The “after interactions” result agrees reasonably well with the observed CW PL from a specimen with the same size distribution and volume fill [47].
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