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Localization and interdot carrier transfer in CdSe and CdZnMnSe quantum dots determined by cw and time-resolved photoluminescence
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10.1063/1.2740484
/content/aip/journal/apl/90/20/10.1063/1.2740484
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/20/10.1063/1.2740484
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Photoluminescence (PL) spectra for CdSe single layer quantum dots (SLQDs) and for the double layer QD structures at . (b): The shift of the three PL peak energies as a function of temperature. The PL from CdZnMnSe QDs is shifted by . The FWHM values of the PL peaks are shown in the inset.

Image of FIG. 2.
FIG. 2.

(Color online) (a) PL decay for CdSe and CdZnMnSe QDs at , showing their PL peak energies on a logarithmic scale. The zero on the time delay scale corresponds to the time of maximum PL intensity. [(b) and (c)] PL spectra with various time delays for CdSe and CdZnMnSe QDs in the structure, after pulsed laser excitation at .

Image of FIG. 3.
FIG. 3.

(Color online) (a) Dependence of the PL decay time on photon energy for CdSe SLQDs at (∎), (▴), (●), and (▵). The PL spectrum for is also shown in the figure. (b) PL lifetime for CdSe QDs as a function of temperature at PL peak energy (∎), and at half-height above (●) and below (엯) the PL peak. The short and relatively independent of energy PL lifetime for the CdZnMnSe QD (◻) is also included in the figure.

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/content/aip/journal/apl/90/20/10.1063/1.2740484
2007-05-18
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Localization and interdot carrier transfer in CdSe and CdZnMnSe quantum dots determined by cw and time-resolved photoluminescence
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/20/10.1063/1.2740484
10.1063/1.2740484
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