InAs quantum dots: Predicted electronic structure of free-standing versus GaAs-embedded structures

1999 ◽  
Vol 59 (24) ◽  
pp. 15819-15824 ◽  
Author(s):  
A. J. Williamson ◽  
Alex Zunger
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Free Standing ◽  
Inas Quantum Dots ◽  
Embedded Structures

Electronic Structure of Long Wavelength (>1.3μm) GaAsSb-capped InAs Quantum Dots

2007 ◽  
Author(s):  
T. J. Badcock ◽  
D. J. Mowbray ◽  
E. Nabavi ◽  
H. Y. Liu ◽  
M. J. Steer ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Inas Quantum Dots ◽  
Long Wavelength

Electronic structure of self-assembled InAs quantum dots in GaAs matrix

1998 ◽  
Vol 73 (8) ◽  
pp. 1092-1094 ◽  
Author(s):  
P. N. Brounkov ◽  
A. Polimeni ◽  
S. T. Stoddart ◽  
M. Henini ◽  
L. Eaves ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Inas Quantum Dots ◽  
Gaas Matrix ◽  
Self Assembled

Electronic structure and optical gain of InAsSbN/InAs quantum dots

2010 ◽  
Vol 49 (1) ◽  
pp. S10-S14 ◽  
Author(s):  
J. Chen ◽  
W.J. Fan ◽  
Q. Xu ◽  
X.W. Zhang
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Optical Gain ◽  
Inas Quantum Dots

Electronic-Structure Theory of Semiconductor Quantum Dots

MRS Bulletin ◽  
1998 ◽  
Vol 23 (2) ◽  
pp. 35-42 ◽  
Author(s):  
Alex Zunger
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Coulomb Blockade ◽  
Density Functional ◽  
Plane Waves ◽  
Electronic Structure Theory ◽  
Structure Theory ◽  
Free Standing ◽  
Electron Hole ◽  
Main Challenge

Progress made in the growth of “free-standing” (e.g., colloidal) quantum dots (see also articles in this issue by Nozik and Mićić, and by Alivisatos) and in the growth of semiconductor-embedded (“self-assembled”) dots (see also the article by Bimberg, Grundmann, and Ledentsov in this issue) has opened the door to new and exciting spectroscopic studies of quantum structures. These have revealed rich and sometimes unexpected features such as quantum-dot shape-dependent transitions, size-dependent (red) shifts between absorption and emission, emission from high excited levels, surface-mediated transitions, exchange splitting, strain-induced splitting, and Coulomb-blockade transitions. These new observations have created the need for developing appropriate theoretical tools capable of analyzing the electronic structure of 103–106-atom objects. The main challenge is to understand (a) the way the one-electron levels of the dot reflect quantum size, quantum shape, interfacial strain, and surface effects and (b) the nature of “many-particle” interactions such as electron-hole exchange (underlying the “red shift”), electron-hole Coulomb effects (underlying excitonic transitions), and electron-electron Coulomb (underlying Coulomb-blockade effects).Interestingly, while the electronic structure theory of periodic solids has been characterized since its inception by a diversity of approaches (all-electron versus pseudopotentials; Hartree Fock versus density-functional; computational schemes creating a rich “alphabetic soup,” such as APW, LAPW, LMTO, KKR, OPW, LCAO, LCGO, plane waves, ASW, etc.), the theory of quantum nano-structures has been dominated mainly by a single approach so widely used that I refer to it as the “Standard Model”: the effective-mass approximation (EMA) and its extension to the “k · p” (where k is the wave vector and p is the momemtum). In fact, speakers at nanostructure conferences often refer to it as “theory” without having to specify what is being done. The audience knows.

Calculations of the electronic structure of strained InAs quantum dots in InP

2002 ◽  
Vol 92 (2) ◽  
pp. 932-936 ◽  
Author(s):  
Magnus Holm ◽  
Mats-Erik Pistol ◽  
Craig Pryor
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Inas Quantum Dots

Electronic structure of self-assembled InAs quantum dots in InP: An anisotropic quantum-dot system

1999 ◽  
Vol 60 (16) ◽  
pp. R11289-R11292 ◽  
Author(s):  
H. Pettersson ◽  
R. J. Warburton ◽  
J. P. Kotthaus ◽  
N. Carlsson ◽  
W. Seifert ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Quantum Dot ◽  
Inas Quantum Dots ◽  
Anisotropic Quantum Dot ◽  
Self Assembled

Electronic structure of self-assembled InAs quantum dots

2002 ◽  
Vol 13 (2-4) ◽  
pp. 208-211 ◽  
Author(s):  
C Bock ◽  
K.H Schmidt ◽  
U Kunze ◽  
V.V Khorenko ◽  
S Malzer ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Inas Quantum Dots ◽  
Self Assembled

scholarly journals Effect of Sb incorporation on the electronic structure of InAs quantum dots

2013 ◽  
Vol 88 (8) ◽  
Author(s):  
A. G. Taboada ◽  
J. M. Llorens ◽  
D. Alonso-Álvarez ◽  
B. Alén ◽  
A. Rivera ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Structure ◽  
Inas Quantum Dots
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