scholarly journals Detection of optical emissions from deep localized states in a self-assembled InAs/GaAs QD structure

2022 ◽  
Vol 7 ◽  
pp. 100199
Author(s):  
Rihani Jawher ◽  
Mehrez Oueslati ◽  
Vincent Sallet ◽  
Jean-Christophe Harmand ◽  
Radhwen Chtourou
Keyword(s):  
Localized States ◽  
Optical Emissions ◽  
Self Assembled

Lateral Coupling of Self-Assembled Quantum Dots Studied by Near-Field Spectroscopy

1999 ◽  
Vol 571 ◽  
Author(s):  
H.D. Robinson ◽  
B.B. Goldberg ◽  
J.L. Merz
Keyword(s):  
Quantum Dots ◽  
Additional Data ◽  
High Spatial Resolution ◽  
Large Fraction ◽  
Near Field ◽  
Localized States ◽  
Emission Lines ◽  
Lateral Coupling ◽  
Self Assembled ◽  
Density Regime

ABSTRACTLateral coupling between separate quantum dots has been observed in a system of In0.55A10.45As self-assembled quantum dots. The experiment was performed by taking photoluminescence excitation (PLE) spectra in the optical near-field at 4.2 K. The high spatial resolution afforded by the near-field technique allows us to resolve individual dots in a density regime where interactions between neighboring dots become apparent. In the PLE spectra, narrow resonances are observed in the emission lines of individual dots. A large fraction of these resonances occur simultaneously in several emission lines, originating from different quantum dots. This is evidence of interdot scattering of carriers, which additional data show to be mediated by localized states at energies below the wetting layer exciton energy. A very rich phonon spectrum generated by the complicated interfaces between barrier and dot material is also evident in the data.

Origin of localized states in zinc-blende ZnCdSe thin films and the influence on carrier relaxation of self-assembled ZnTe/ZnCdSe quantum dots

2015 ◽  
Vol 632 ◽  
pp. 392-396 ◽  
Author(s):  
Ling Lee ◽  
Yue-Ru Dai ◽  
Chu-Shou Yang ◽  
Wen-Chung Fan ◽  
Wu-Ching Chou
Keyword(s):  
Thin Films ◽  
Quantum Dots ◽  
Localized States ◽  
Carrier Relaxation ◽  
Zinc Blende ◽  
Self Assembled

Strain-induced localized states within the matrix continuum of self-assembled quantum dots

2009 ◽  
Vol 95 (2) ◽  
pp. 023108 ◽  
Author(s):  
Voicu Popescu ◽  
Gabriel Bester ◽  
Alex Zunger
Keyword(s):  
Quantum Dots ◽  
Localized States ◽  
The Matrix ◽  
Self Assembled

Dynamics of Self-Organized and Self-Assembled Structures

2009 ◽  
Author(s):  
Rashmi C. Desai ◽  
Raymond Kapral
Keyword(s):  
Self Organized ◽  
Self Assembled

Electrochemical behavior of self-assembled monolayers based on functionalized oligothiophenes

1998 ◽  
Vol 95 (6) ◽  
pp. 1339-1342 ◽  
Author(s):  
R. Michalitsch ◽  
A. El Kassmi ◽  
P. Lang ◽  
A. Yassar ◽  
F. Garnier
Keyword(s):  
Electrochemical Behavior ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Imaging of patterned self-assembled monolayers by scanning photoelectron microscopy

2003 ◽  
Vol 104 ◽  
pp. 459-462 ◽  
Author(s):  
R. Klauser ◽  
M. Zharnikov ◽  
I.-H. Hong ◽  
S.-C. Wang ◽  
A. Gölzhäuser ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Scanning Photoelectron Microscopy ◽  
Self Assembled
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