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(Color online) Typical AFM images of CdSe QDs samples capped with ZnSe layers of (a) 0, (b) 1, (c) 2, and (d) 3 ML. The temperature for ZnSe capping was .
Dependence of dot height on time. Curve A (dashed dots) expresses Eq. (1). Curve B (dashed line) represents the ripening of a QD which has a faster ripening rate. Curve C (solid line) describes Eq. (3).
PL spectra from the CdSe QDs with ZnSe partial capping of samples (A) 0, (B) 1, (C) 2, (D) 3, (E) 4, (F) 7 to (G) 20 ML.
Dependence of the enhancement factor on the coverage of partial capping. The solid line simulates Eq. (5). The error bars represent the accuracy in the AFM measurements.
Size and density of the uncapped and partially capped CdSe QDs observed from AFM images.
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