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Nonresonant carrier tunneling in arrays of silicon nanocrystals
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) Tunneling simulation for a 300-NC specimen (20% fill, lognormal distribution given in text). In panels (a), (c), and (e), green indicates the presence of one or more electron-hole pairs. In (b), (d), and (f), gray particles are neutral, and blue and red indicate negatively and positively charged NCs, respectively. The clusters in the red box are discussed in the text.

Image of FIG. 2.
FIG. 2.

(Color online) Evolution of the PL spectrum as a function of iteration step (initial, 1,2,3, and in the four runs). The experimental data are shown by the red circles. The inset shows simulated spectra (final) for different NC vol % fillings.

Image of FIG. 3.
FIG. 3.

(Color online) (a) Side view of a simulated multilayer QD specimen (20% fill, lognormal distribution given in text, NC centers confined to layers separated by ). (b) shows the resulting PL spectrum for NCs whose centers are confined to layers 0.5, 3, and thick. Blue and red indicate clusters with negative or positive charges, respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonresonant carrier tunneling in arrays of silicon nanocrystals