Site-controlled growth and luminescence of InAs quantum dots using in situ Ga-assisted deoxidation of patterned substrates

2008 ◽  
Vol 93 (10) ◽  
pp. 101908 ◽  
Author(s):  
P. Atkinson ◽  
S. Kiravittaya ◽  
M. Benyoucef ◽  
A. Rastelli ◽  
O. G. Schmidt
Keyword(s):  
Quantum Dots ◽  
Controlled Growth ◽  
Patterned Substrates ◽  
Inas Quantum Dots

Initial Stages of InAs Quantum Dots Evolution in GaAs/AlAs Matrixes

2002 ◽  
Vol 749 ◽  
Author(s):  
Michael Yakimov ◽  
Vadim Tokranov ◽  
Alex Katnelson ◽  
Serge Oktyabrsky
Keyword(s):  
Quantum Dots ◽  
Direct Evidence ◽  
Matrix Material ◽  
Single Layer ◽  
High Energy ◽  
Inas Quantum Dots ◽  
Auger Signal ◽  
The Matrix ◽  
Growth Evolution

ABSTRACTWe have studied the first phases of post-growth evolution of InAs quantum dots (QDs) using in-situ Auger electron spectroscopy in conjunction with Reflection High Energy Electron Diffraction (RHEED). Direct evidence for InAs intermixing with about 6ML (monolayers) of the matrix material is found from Auger signal behavior during MBE overgrowth of InAs nanostructures. Re-establishment of 2D growth mode by overgrowth with GaAs or AlAs was monitored in single-layer and multi-layer QD structures using RHEED. Decay process of InAs QDs on the surface is found to have activation energy of about 1.1 eV that corresponds to In intermixing with the matrix rather than evaporation from the surface.

Decoration of upconversion nanocrystals with metal sulfide quantum dots by a universal in situ controlled growth strategy

Nanoscale ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 3977-3987 ◽  
Author(s):  
Kaimin Du ◽  
Pengpeng Lei ◽  
Manli Zhang ◽  
Xuan Gao ◽  
Shuang Yao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Sulfide ◽  
Growth Strategy ◽  
Controlled Growth ◽  
Upconversion Nanocrystals

Multifunctional NaYF4:Yb/Er@CS@Mn+S (M = Ag, Cu, Cd) nanocomposites could be prepared by a universal in situ controlled growth strategy.

Area-Controlled Growth of InAs Quantum Dots by Selective MOCVD

1999 ◽  
Author(s):  
J. Tatebayashi ◽  
S. Ishida ◽  
M. Nishioka ◽  
T. Someya ◽  
Y. Arakawa
Keyword(s):  
Quantum Dots ◽  
Controlled Growth ◽  
Inas Quantum Dots
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