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Temperature dependence of optical properties of InAs/GaAs self-organized quantum dots
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10.1063/1.3122003
/content/aip/journal/jap/105/9/10.1063/1.3122003
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/9/10.1063/1.3122003

Figures

Image of FIG. 1.
FIG. 1.

Cross-sectional TEM image for the InAs QDs embedded in GaAs matrix.

Image of FIG. 2.
FIG. 2.

PL spectra of InAs QDs at different excitation powers normalized from the first peak (at 1.057 eV).

Image of FIG. 3.
FIG. 3.

PL spectra measured at different temperatures of the InAs/GaAs QDs.

Image of FIG. 4.
FIG. 4.

The calculated electron envelope functions of the ground and first excited states for the lens-shaped InAs QD embedded in GaAs matrix.

Image of FIG. 5.
FIG. 5.

Calculated electron-heavy-hole transition energies ( and ) in a lens-shaped InAs QD as a function of the QD radius. The InAs QD height .

Image of FIG. 6.
FIG. 6.

Variation in transition energy as a function of the temperature for InAs/GaAs QDs.

Tables

Generic image for table
Table I.

Physical constants of the material: is the effective mass for the well (InAs) in units, is the effective mass for the barrier (GaAs) in units, is the free electron mass, and is the barrier potential energy (meV) for the electron (hole) taking into account the averaged effect of strain.

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/content/aip/journal/jap/105/9/10.1063/1.3122003
2009-05-11
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Temperature dependence of optical properties of InAs/GaAs self-organized quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/jap/105/9/10.1063/1.3122003
10.1063/1.3122003
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