A Tight Binding Study of Strain-Reduced Confinement Potentials in Identical and Non-Identical InAs/GaAs Vertically Stacked Quantum Dots

2008 ◽  
Author(s):  
Muhammad Usman ◽  
Shaikh Ahmed ◽  
Gerhard Klimeck
Keyword(s):  
Quantum Dots ◽  
Tight Binding ◽  
Binding Study ◽  
Stacked Quantum Dots

scholarly journals Tight-binding study of the influence of the strain on the electronic properties of InAs/GaAs quantum dots

2003 ◽  
Vol 68 (23) ◽  
Author(s):  
R. Santoprete ◽  
Belita Koiller ◽  
R. B. Capaz ◽  
P. Kratzer ◽  
Q. K. K. Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Properties ◽  
Tight Binding ◽  
Binding Study

scholarly journals Effect of post-growth annealing on the optical properties of InAs/GaAs quantum dots: A tight-binding study

2007 ◽  
Vol 102 (2) ◽  
pp. 023711 ◽  
Author(s):  
R. Santoprete ◽  
P. Kratzer ◽  
M. Scheffler ◽  
Rodrigo B. Capaz ◽  
Belita Koiller
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Tight Binding ◽  
Binding Study

A search for lowest energy structures of ZnS quantum dots: Genetic algorithm tight-binding study

2009 ◽  
Vol 130 (21) ◽  
pp. 214703 ◽  
Author(s):  
Sougata Pal ◽  
Rahul Sharma ◽  
Biplab Goswami ◽  
Pranab Sarkar ◽  
S. P. Bhattacharyya
Keyword(s):  
Genetic Algorithm ◽  
Quantum Dots ◽  
Tight Binding ◽  
Binding Study

Communication: Photoinduced Carbon Dioxide Binding with Surface-Functionalized Silicon Quantum Dots

2018 ◽  
Author(s):  
Oscar A. Douglas-Gallardo ◽  
Cristián Gabriel Sánchez ◽  
Esteban Vöhringer-Martinez
Keyword(s):  
Carbon Dioxide ◽  
Quantum Dots ◽  
Atmospheric Carbon Dioxide ◽  
Density Functional ◽  
Tight Binding ◽  
Carbon Dioxide Concentration ◽  
Research Area ◽  
Silicon Quantum Dots ◽  
Dependent Model ◽  
Photoinduced Charge

<div> <div> <div> <p>Nowadays, the search of efficient methods able to reduce the high atmospheric carbon dioxide concentration has turned into a very dynamic research area. Several environmental problems have been closely associated with the high atmospheric level of this greenhouse gas. Here, a novel system based on the use of surface-functionalized silicon quantum dots (sf -SiQDs) is theoretically proposed as a versatile device to bind carbon dioxide. Within this approach, carbon dioxide trapping is modulated by a photoinduced charge redistribution between the capping molecule and the silicon quantum dots (SiQDs). Chemical and electronic properties of the proposed SiQDs have been studied with Density Functional Theory (DFT) and Density Functional Tight-Binding (DFTB) approach along with a Time-Dependent model based on the DFTB (TD-DFTB) framework. To the best of our knowledge, this is the first report that proposes and explores the potential application of a versatile and friendly device based on the use of sf -SiQDs for photochemically activated carbon dioxide fixation. </p> </div> </div> </div>

scholarly journals Optical TCAD on the Net: A tight-binding study of inter-band light transitions in self-assembled InAs/GaAs quantum dot photodetectors

2013 ◽  
Vol 58 (1-2) ◽  
pp. 288-299 ◽  
Author(s):  
Hoon Ryu ◽  
Dukyun Nam ◽  
Bu-Young Ahn ◽  
JongSuk Ruth Lee ◽  
Kumwon Cho ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Tight Binding ◽  
Binding Study ◽  
Self Assembled ◽  
Gaas Quantum Dot

Electromechanical field effects in InAs/GaAs quantum dots based on continuum k→·p→ and atomistic tight-binding methods

2021 ◽  
Vol 197 ◽  
pp. 110678
Author(s):  
Daniele Barettin ◽  
Alessandro Pecchia ◽  
Matthias Auf der Maur ◽  
Aldo Di Carlo ◽  
Benny Lassen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Tight Binding ◽  
Field Effects ◽  
Electromechanical Field

Core energy and Peierls stress of a screw dislocation in bcc molybdenum: A periodic-cell tight-binding study

2004 ◽  
Vol 70 (10) ◽  
Author(s):  
Ju Li ◽  
Cai-Zhuang Wang ◽  
Jin-Peng Chang ◽  
Wei Cai ◽  
Vasily V. Bulatov ◽  
...  
Keyword(s):  
Screw Dislocation ◽  
Tight Binding ◽  
Binding Study ◽  
Peierls Stress ◽  
Periodic Cell ◽  
Core Energy

Intermixing during growth of InAs self-assembled quantum dots in InP: A photoluminescence and tight-binding investigation

2008 ◽  
Vol 77 (7) ◽  
Author(s):  
C. Dion ◽  
P. Desjardins ◽  
N. Shtinkov ◽  
M. D. Robertson ◽  
F. Schiettekatte ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Tight Binding ◽  
Self Assembled

Growth and spectral analysis of stacked quantum dots for broadband superluminescent diodes

2013 ◽  
Vol 62 (4) ◽  
pp. 595-600 ◽  
Author(s):  
Moon Ho Park ◽  
Sung Jun Park ◽  
Jin Dong Song ◽  
Won Jun Choi ◽  
Kwang Woong Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Spectral Analysis ◽  
Superluminescent Diodes ◽  
Stacked Quantum Dots
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