Distinct two dimensional lateral ordering of self-assembled quantum dots

2008 ◽  
Vol 40 (6) ◽  
pp. 1952-1954
Author(s):  
W.Q. Ma ◽  
Y.W. Sun ◽  
X.J. Yang ◽  
D.S. Jiang ◽  
L.H. Chen
Keyword(s):  
Quantum Dots ◽  
Two Dimensional ◽  
Lateral Ordering ◽  
Self Assembled

Two-dimensional lateral ordering of self-assembled Ge islands on patterned substrates

2004 ◽  
Vol 21 (2-4) ◽  
pp. 588-591 ◽  
Author(s):  
Zhenyang Zhong ◽  
Gang Chen ◽  
J Stangl ◽  
Th Fromherz ◽  
F Schäffler ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Patterned Substrates ◽  
Lateral Ordering ◽  
Self Assembled

scholarly journals Kondo-excitons and Auger processes in self-assembled quantum dots

2002 ◽  
Vol 737 ◽  
Author(s):  
A. O. Govorov ◽  
K. Karrai ◽  
R. J. Warburton ◽  
A. V. Kalameitsev
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Electron Spin ◽  
Electron Gas ◽  
Kondo Temperature ◽  
Two Dimensional ◽  
Wetting Layer ◽  
Voltage Dependent ◽  
Self Assembled ◽  
The Continuum

ABSTRACTWe describe theoretically novel excitons in self-assembled quantum dots interacting with a two-dimensional (2D) electron gas in the wetting layer. In the presence of the Fermi sea, the optical lines become strongly voltage-dependent. If the electron spin is nonzero, the width of optical lines is given by kBTK, where TK is Kondo temperature. If the spin is zero, the exciton couples with the continuum due to Auger-like processes. This leads to anticrossings in a magnetic field. Such states can be called Kondo-Anderson excitons. Some of the described phenomena are observed in recent experiments.

Transport properties of two-dimensional electron gases containing linear ordering InAs self-assembled quantum dots

2001 ◽  
Vol 78 (24) ◽  
pp. 3896-3898 ◽  
Author(s):  
Gil-Ho Kim ◽  
D. A. Ritchie ◽  
C.-T. Liang ◽  
G. D. Lian ◽  
J. Yuan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Transport Properties ◽  
Linear Ordering ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Gases ◽  
Self Assembled

scholarly journals From localization to Landau quantization in a two-dimensional GaAs electron system containing self-assembled InAs quantum dots

2004 ◽  
Vol 69 (7) ◽  
Author(s):  
Gil-Ho Kim ◽  
C.-T. Liang ◽  
C. F. Huang ◽  
J. T. Nicholls ◽  
D. A. Ritchie ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron System ◽  
Two Dimensional ◽  
Inas Quantum Dots ◽  
Self Assembled

Auger carrier relaxation in self-assembled quantum dots by collisions with two-dimensional carriers

1997 ◽  
Vol 81 (12) ◽  
pp. 7895-7899 ◽  
Author(s):  
A. V. Uskov ◽  
F. Adler ◽  
H. Schweizer ◽  
M. H. Pilkuhn
Keyword(s):  
Quantum Dots ◽  
Two Dimensional ◽  
Carrier Relaxation ◽  
Self Assembled

scholarly journals Упорядоченные массивы квантовых точек Ge(Si), встроенные в двумерные фотонные кристаллы

2019 ◽  
Vol 53 (10) ◽  
pp. 1366
Author(s):  
Ж.В. Смагина ◽  
В.А. Зиновьев ◽  
Е.Е. Родякина ◽  
Б.И. Фомин ◽  
М.В. Степихова ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photonic Crystals ◽  
Spectral Range ◽  
Silicon Surface ◽  
Room Temperature ◽  
Two Dimensional ◽  
Growth Modes ◽  
Self Assembled

Two approaches to the integration of ordered Ge(Si) self-assembled quantum dots (QDs) into two-dimensional photonic crystals (PhC) are considered in the paper. The first approach involves the synthesis on the structured silicon surface of the ordered Ge(Si) QD array, on which PhC is then formed. In the second approach, the PhC itself serves as the template for the ordered QD growth. It is shown that varying the diameter of PhC holes in the framework of the second approach, two growth modes of QDs can be realized, when they are formed inside or outside the PhC holes. For structures with ordered QDs built into PhC, an increase in the intensity of the photoluminescence signal was detected at room temperature in the spectral range of 0.9-1.2 eV, which is associated with the interaction of the emission with the radiation modes of PhC.

Sign in / Sign up

Export Citation Format

Share Document