Intra-valence band transitions in self-assembled InAs∕GaAs quantum dots studied using photocurrent spectroscopy

2006 ◽  
Vol 100 (1) ◽  
pp. 013106 ◽  
Author(s):  
E. A. Zibik ◽  
A. M. Adawi ◽  
L. R. Wilson ◽  
A. Lemaître ◽  
J. W. Cockburn ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Valence Band ◽  
Photocurrent Spectroscopy ◽  
Self Assembled

Photocurrent spectroscopy on self-assembled InAs quantum dots embedded in InP

2005 ◽  
Vol 36 (3-6) ◽  
pp. 227-230 ◽  
Author(s):  
H. Pettersson ◽  
L. Landin ◽  
Ying Fu ◽  
M. Kleverman ◽  
M. Borgström ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Inas Quantum Dots ◽  
Photocurrent Spectroscopy ◽  
Self Assembled

Photocurrent Spectroscopy of InAs/GaAs Self-Assembled Quantum Dots

2001 ◽  
Vol 224 (2) ◽  
pp. 497-502 ◽  
Author(s):  
P.W. Fry ◽  
D.J. Mowbray ◽  
I.E. Itskevich ◽  
M.S. Skolnick ◽  
J.A. Barker ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocurrent Spectroscopy ◽  
Self Assembled

Intra-valence band photocurrent spectroscopy of self-assembled Ge dots in Si

2000 ◽  
Vol 76 (8) ◽  
pp. 1027-1029 ◽  
Author(s):  
C. Miesner ◽  
O. Röthig ◽  
K. Brunner ◽  
G. Abstreiter
Keyword(s):  
Valence Band ◽  
Photocurrent Spectroscopy ◽  
Self Assembled

Intraband absorption and photocurrent spectroscopy of self-assembled p-type Si/SiGe quantum dots

2002 ◽  
Vol 80 (12) ◽  
pp. 2093-2095 ◽  
Author(s):  
T. Fromherz ◽  
W. Mac ◽  
A. Hesse ◽  
G. Bauer ◽  
C. Miesner ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocurrent Spectroscopy ◽  
Intraband Absorption ◽  
Self Assembled ◽  
P Type

Valence band mixing in charged self-assembled quantum dots

2006 ◽  
Vol 3 (11) ◽  
pp. 3895-3899
Author(s):  
Y. Léger ◽  
L. Besombes ◽  
L. Maingault ◽  
H. Mariette
Keyword(s):  
Quantum Dots ◽  
Valence Band ◽  
Band Mixing ◽  
Self Assembled ◽  
Valence Band Mixing

Photocurrent Spectroscopy of InAs/GaAs Self-Assembled Quantum Dots: Observation of a Permanent Dipole Moment

1999 ◽  
Vol 571 ◽  
Author(s):  
P.W. Fry ◽  
I.E. Itskevich ◽  
D.J. Mowbray ◽  
M.S. Skolnick ◽  
J.A. Barker ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Dipole Moment ◽  
Stark Effect ◽  
Permanent Dipole Moment ◽  
Thermal Excitation ◽  
Zero Field ◽  
Quantum Confined Stark Effect ◽  
Photocurrent Spectroscopy ◽  
Self Assembled ◽  
Carrier Escape

ABSTRACTPhotocurrent spectroscopy of InAs/GaAs self-assembled quantum dots, studied as a function of applied electric field, is used to probe the nature of the confined electronic states. A field asymmetry of the quantum confined Stark effect is observed, consistent with the dots possessing a permanent dipole moment. The sign of this dipole indicates that for zero field the hole wavefunction lies above that of the electron, in disagreement with the predictions of all recent calculations. Comparison with a theoretical model demonstrates that the experimentally determined alignment of the electron and hole can only be explained if the dots contain a nonzero and non-uniform Ga content. The role of two different carrier escape mechanisms, tunneling and thermal excitation, is studied.

Lateral photocurrent spectroscopy on self-assembled PbSe quantum dots

2006 ◽  
Vol 88 (20) ◽  
pp. 201105 ◽  
Author(s):  
M. Simma ◽  
T. Fromherz ◽  
A. Raab ◽  
G. Springholz ◽  
G. Bauer
Keyword(s):  
Quantum Dots ◽  
Photocurrent Spectroscopy ◽  
Self Assembled

scholarly journals Anisotropic Confinement, Electronic Coupling and Strain Induced Effects Detected by Valence-Band Anisotropy in Self-Assembled Quantum Dots

2010 ◽  
Author(s):  
L. Villegas-Lelovsky ◽  
M. D. Teodoro ◽  
V. Lopez-Richard ◽  
C. Calseverino ◽  
A. Malachias ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Valence Band ◽  
Electronic Coupling ◽  
Self Assembled

Valence-band mixing in neutral, charged, and Mn-doped self-assembled quantum dots

2007 ◽  
Vol 76 (4) ◽  
Author(s):  
Y. Léger ◽  
L. Besombes ◽  
L. Maingault ◽  
H. Mariette
Keyword(s):  
Quantum Dots ◽  
Valence Band ◽  
Band Mixing ◽  
Self Assembled ◽  
Mn Doped ◽  
Valence Band Mixing

Midinfrared absorption and photocurrent spectroscopy of InAs/GaAs self-assembled quantum dots

2001 ◽  
Vol 78 (16) ◽  
pp. 2327-2329 ◽  
Author(s):  
S. Sauvage ◽  
P. Boucaud ◽  
T. Brunhes ◽  
V. Immer ◽  
E. Finkman ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photocurrent Spectroscopy ◽  
Self Assembled
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