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Temperature dependence of time-resolved photoluminescence spectroscopy in InAs/GaAs quantum ring
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10.1063/1.3130741
/content/aip/journal/apl/94/18/10.1063/1.3130741
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/18/10.1063/1.3130741
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

AFM images of (a) QD, (b) QR, and (c) XTEM image of QR.

Image of FIG. 2.
FIG. 2.

CW PL spectra of (a) QDs and (c) QRs from to . PL transient from to 300 K at ground state energy of (b) QDs and (d) QRs. Detection energies of time-resolved spectra were fixed at PL peaks indicated by the dots shown in (a) and (c) at all temperatures.

Image of FIG. 3.
FIG. 3.

(a) Temperature dependence of the PL decay time of QD and QR ground states. (b) PL transients from to 300 K at first excited state energy of QRs. Detection energies were fixed at excited state peaks as indicated by the dots shown in Fig. 2(c) at all temperatures.

Image of FIG. 4.
FIG. 4.

Schematic of the dark states and ground states model and the fitting of QR’s decay time curve with a state energy separation of 13.5 meV and relaxation time of 0.7 ns.

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/content/aip/journal/apl/94/18/10.1063/1.3130741
2009-05-04
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Temperature dependence of time-resolved photoluminescence spectroscopy in InAs/GaAs quantum ring
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/18/10.1063/1.3130741
10.1063/1.3130741
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