Electronic Shells in Large Quantum Dots

1996 ◽  
pp. 89-110 ◽  
Author(s):  
P. E. Lindelof ◽  
P. Hullmann ◽  
P. Bøggild ◽  
M. Persson ◽  
S. M. Reimann
Keyword(s):  
Quantum Dots ◽  
Large Quantum

scholarly journals Piezoelectric Properties of GaN Self-Organized Quantum Dots

1999 ◽  
Vol 4 (S1) ◽  
pp. 846-851 ◽  
Author(s):  
B. Daudin ◽  
F. Widmann ◽  
J. Simon ◽  
G. Feuillet ◽  
J. L. Rouvière ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Molecular Beam ◽  
Piezoelectric Properties ◽  
Radiative Lifetime ◽  
Average Height ◽  
Self Organized ◽  
Piezoelectric Effects ◽  
Bulk Gan ◽  
Piezoelectric Field ◽  
Large Quantum

It is demonstrated that GaN quantum dots with the wurtzite structure grown by molecular beam epitaxy on AlN exhibit optical properties which, depending on the size of the dots, may be dominated by piezoelectric effects. In "large" quantum dots with an average height and diameter of 4.1 and 17 nm, respectively, the photoluminescence peak is centered at 2.95 eV, nearly 0.5 eV below the bulk GaN bandgap, which is assigned to a piezoelectric field of 5.5 MV/cm present in the dots. The decay time of the photoluminescence was also measured. A comparison is carried out with theoretical calculation of the radiative lifetime.

scholarly journals Current-density-functional approach to large quantum dots in intense magnetic fields

1998 ◽  
Vol 57 (23) ◽  
pp. 14783-14792 ◽  
Author(s):  
M. Pi ◽  
M. Barranco ◽  
A. Emperador ◽  
E. Lipparini ◽  
Ll. Serra
Keyword(s):  
Quantum Dots ◽  
Magnetic Fields ◽  
Current Density ◽  
Density Functional ◽  
Functional Approach ◽  
Large Quantum

Coalescence of extended states in large quantum dots

1998 ◽  
Vol 256-258 ◽  
pp. 161-164
Author(s):  
V. Kagalovsky ◽  
B. Horovitz ◽  
Y. Avishai
Keyword(s):  
Quantum Dots ◽  
Extended States ◽  
Large Quantum

Spin relaxation of electrons in large quantum dots: a phenomenological model

2009 ◽  
Author(s):  
R. Mathew ◽  
K. I. von Königslöw ◽  
J. A. H. Stotz ◽  
M. R. Singh ◽  
R. H. Lipson
Keyword(s):  
Quantum Dots ◽  
Spin Relaxation ◽  
Phenomenological Model ◽  
Large Quantum

Piezoelectric Properties of GaN Self-Organized Quantum Dots

1998 ◽  
Vol 537 ◽  
Author(s):  
B. Daudin ◽  
F. Widmann ◽  
J. Simon ◽  
G. Feuillet ◽  
J. L. Rouvi&re ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Molecular Beam ◽  
Piezoelectric Properties ◽  
Radiative Lifetime ◽  
Average Height ◽  
Self Organized ◽  
Piezoelectric Effects ◽  
Bulk Gan ◽  
Piezoelectric Field ◽  
Large Quantum

AbstractIt is demonstrated that GaN quantum dots with the wurtzite structure grown by molecular beam epitaxy on AIN exhibit optical properties which, depending on the size of the dots, may be dominated by piezoelectric effects. In “large” quantum dots with an average height and diameter of 4.1 and 17 nm, respectively, the photoluminescence peak is centered at 2.95 eV, nearly 0.5 eV below the bulk GaN bandgap, which is assigned to a piezoelectric field of 5.5 MV/cm present in the dots. The decay time of the photoluminescence was also measured. A comparison is carried out with theoretical calculation of the radiative lifetime.

scholarly journals Multiplets in the optical emission spectra of large quantum dots in microcavities

2005 ◽  
Vol 135 (11-12) ◽  
pp. 659-663 ◽  
Author(s):  
Fabrice P. Laussy ◽  
Alexey Kavokin ◽  
Guillaume Malpuech
Keyword(s):  
Quantum Dots ◽  
Emission Spectra ◽  
Optical Emission ◽  
Optical Emission Spectra ◽  
Large Quantum

scholarly journals Large quantum dots with small oscillator strength

2010 ◽  
Vol 82 (23) ◽  
Author(s):  
S. Stobbe ◽  
T. W. Schlereth ◽  
S. Höfling ◽  
A. Forchel ◽  
J. M. Hvam ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Oscillator Strength ◽  
Large Quantum

scholarly journals Ground states of large quantum dots in magnetic fields

1997 ◽  
pp. 168-187
Author(s):  
Elliott H. Lieb ◽  
Jan Philip Solovej ◽  
Jakob Yngvason
Keyword(s):  
Quantum Dots ◽  
Magnetic Fields ◽  
Ground States ◽  
Large Quantum
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