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Effect of ZnSe partial capping on the ripening dynamics of CdSe quantum dots
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10.1063/1.2696585
/content/aip/journal/apl/90/8/10.1063/1.2696585
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/8/10.1063/1.2696585

Figures

Image of FIG. 1.
FIG. 1.

(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 .

Image of FIG. 2.
FIG. 2.

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).

Image of FIG. 3.
FIG. 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.

Image of FIG. 4.
FIG. 4.

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.

Tables

Generic image for table
Table I.

Size and density of the uncapped and partially capped CdSe QDs observed from AFM images.

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/content/aip/journal/apl/90/8/10.1063/1.2696585
2007-02-23
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of ZnSe partial capping on the ripening dynamics of CdSe quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/8/10.1063/1.2696585
10.1063/1.2696585
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