1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Observation of photo darkening in self assembled InGaAs/GaAs quantum dots
Rent:
Rent this article for
USD
10.1063/1.4803683
/content/aip/journal/jap/113/17/10.1063/1.4803683
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4803683
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) PL spectra at different moments under continuous laser irradiation. The GaAs peak is magnified tenfold to give an intuitive comparison. The last (purple) curve is a typical spectrum after 18 h holding in the darkness. (b) Integrated PL intensity of QD emission as a function of laser irradiation time before and after holding in the darkness. The inset of (b) shows the peak position of GaAs band edge emission as a function of laser power. The estimated temperature is shown on the right axis.

Image of FIG. 2.
FIG. 2.

(a) PL degradation as a function of the laser irradiation time at different laser powers. (b) The stretching exponential fitting results for PL degradation at different laser powers.

Image of FIG. 3.
FIG. 3.

(a) Three normalized PL spectra at different moments during the laser irradiation. The applied laser power is 130 mw. The green dashed curves are the Gaussian fitting (the ground state, the first, and second excited states) for the t = 0 min spectrum. (b) A comparison of the PL intensity degradation for the decomposed GS, ES1, and ES2 of the QD emission.

Loading

Article metrics loading...

/content/aip/journal/jap/113/17/10.1063/1.4803683
2013-05-02
2014-04-20
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Observation of photo darkening in self assembled InGaAs/GaAs quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/17/10.1063/1.4803683
10.1063/1.4803683
SEARCH_EXPAND_ITEM