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

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

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

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 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

Intersubband Photocurrent Spectroscopy on Self-Assembled In(Ga)As/GaAs Quantum Dots

2001 ◽  
Vol 224 (2) ◽  
pp. 591-594 ◽  
Author(s):  
L. Chu ◽  
A. Zrenner ◽  
M. Bichler ◽  
G. B�hm ◽  
G. Abstreiter
Keyword(s):  
Quantum Dots ◽  
Photocurrent Spectroscopy ◽  
Self Assembled

Electronic properties of InAs/GaAs self-assembled quantum dots studied by photocurrent spectroscopy

2001 ◽  
Vol 9 (1) ◽  
pp. 106-113 ◽  
Author(s):  
P.W. Fry ◽  
M.S. Skolnick ◽  
D.J. Mowbray ◽  
I.E. Itskevich ◽  
J.J. Finley ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Properties ◽  
Photocurrent Spectroscopy ◽  
Self Assembled

Observation of very narrow fine-structure splittings in self-assembled quantum dots by photocurrent spectroscopy

2008 ◽  
Vol 40 (6) ◽  
pp. 2192-2194
Author(s):  
Hiroyuki Takagi ◽  
Toshihiro Nakaoka ◽  
Katsuyuki Watanabe ◽  
Naoto Kumagai ◽  
Satoshi Iwamoto ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fine Structure ◽  
Photocurrent Spectroscopy ◽  
Self Assembled
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