scholarly journals Nanometer-scale studies of vertical organization and evolution of stacked self-assembled InAs/GaAs quantum dots

1999 ◽  
Vol 74 (19) ◽  
pp. 2824-2826 ◽  
Author(s):  
B. Lita ◽  
R. S. Goldman ◽  
J. D. Phillips ◽  
P. K. Bhattacharya
Keyword(s):  
Quantum Dots ◽  
Nanometer Scale ◽  
Vertical Organization ◽  
Self Assembled

Study of growth behaviour and microstructure of epitaxially grown self-assembled Ge quantum dots on nanometer-scale patterned SiO2/Si(001) substrates

2009 ◽  
Vol 246 (4) ◽  
pp. 721-724 ◽  
Author(s):  
Tae-Sik Yoon ◽  
Hyun-Mi Kim ◽  
Ki-Bum Kim ◽  
Du Yeol Ryu ◽  
Thomas P. Russell ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Nanometer Scale ◽  
Growth Behaviour ◽  
Ge Quantum Dots ◽  
Self Assembled

Germanium Island Size Distribution by Atomistic Simulation

2003 ◽  
Vol 794 ◽  
Author(s):  
Richard J. Wagner ◽  
Erdogan Gulari
Keyword(s):  
Quantum Dots ◽  
Epitaxial Growth ◽  
Size Distribution ◽  
Atomistic Simulation ◽  
Chemical Potential ◽  
Gibbs Distribution ◽  
Nanometer Scale ◽  
Size Distributions ◽  
Island Size ◽  
Self Assembled

ABSTRACTStrained epitaxial growth of Ge on Si(001) produces self-assembled, nanometer scale islands, or quantum dots. We study this growth by atomistic simulation, computing the energy of island structures to determine when and how islanding occurs. The distribution of island sizes on a surface is determined by the relation of island energy to size. Applying the calculated chemical potential to the Boltzmann-Gibbs distribution, we predict size distributions as functions of coverage and temperature. The peak populations around 80 000 atoms (35 nm wide) compare favorably with experiment.

Nano-Photoluminescence Studies of Self-Assembled Quantum Dots

1999 ◽  
Vol 583 ◽  
Author(s):  
H. Htoon ◽  
Hongbin Yu ◽  
D. Kulik ◽  
J. W. Keto ◽  
O. Baklenov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Stark Effect ◽  
Nanometer Scale ◽  
Far Field ◽  
Quantum Confined Stark Effect ◽  
Carrier Transfer ◽  
Field Dependent ◽  
Self Assembled ◽  
Photoluminescence Studies ◽  
Individual Self

AbstractTwo simple and effective far-field-optics-based methods capable of isolating photoluminescence peaks of different individual self assembled quantum dots (SAQD's) with nanometer scale precision are presented. By using these methods, we performed the temperature and electric field dependent studies on the optical properties of SAQD's. We found temperature induced inter-dot carrier transfer among neighboring quantum dots (QD's) and observed the quantum confined stark effect (QCSE).

Magnetotunneling spectroscopy imaging of electron wave functions in self-assembled InAs quantum dots

2001 ◽  
Vol 171 (12) ◽  
pp. 1365
Author(s):  
E.E. Vdovin ◽  
Yu.N. Khanin ◽  
Yu.V. Dubrovskii ◽  
A. Veretennikov ◽  
A. Levin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Wave Functions ◽  
Electron Wave ◽  
Inas Quantum Dots ◽  
Self Assembled

Photon echo study of excitons and excitonic complexes in self-assembled quantum dots

2007 ◽  
Vol 122-123 ◽  
pp. 730-734 ◽  
Author(s):  
Michio Ikezawa ◽  
Selvakumar Nair ◽  
Fumitaka Suto ◽  
Yasuaki Masumoto ◽  
Chikako Uchiyama ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Photon Echo ◽  
Self Assembled

Unveiling structural properties of self-assembled quantum dots

2013 ◽  
Author(s):  
M. Gunasekera ◽  
C. Rajapaksha ◽  
A. Freundlich
Keyword(s):  
Quantum Dots ◽  
Structural Properties ◽  
Self Assembled
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