Shape effects on the one- and two-electron ground state in ellipsoidal quantum dots

2001 ◽  
Vol 64 (12) ◽  
Author(s):  
G. Cantele ◽  
D. Ninno ◽  
G. Iadonisi
Keyword(s):  
Quantum Dots ◽  
Ground State ◽  
Shape Effects ◽  
The One ◽  
Electron Ground State

scholarly journals Энергетический спектр и волновые функции электронов в туннельно-связанных сферических квантовых точках InAs/GaAs

2020 ◽  
Vol 46 (6) ◽  
pp. 20
Author(s):  
Г.Ф. Глинский ◽  
Д.А. Шапран
Keyword(s):  
Quantum Dots ◽  
Binding Energy ◽  
Ground State ◽  
State Energy ◽  
Orbit Interaction ◽  
Electron Binding Energy ◽  
Simple Cubic ◽  
Electron Ground State ◽  
Effective Mass Method ◽  
Electron Binding

The results of numerical calculation of the electron ground state energy and electron density in tunneled InAs/GaAs quantum dots forming a simple cubic superlattice are presented. The calculation is carried out in the framework of a modified effective mass method, taking into account the microscopic (atomic) structure of individual quantum dots, without taking into account the spin-orbit interaction and deformation effects. The dependence of the electron binding energy on the radius of the quantum dot R. It is shown that in the region R < 27 Å the electron binding energy is proportional to R in degree three.

scholarly journals Anisotropic spin splitting of the electron ground state in InAs quantum dots

2007 ◽  
Vol 90 (24) ◽  
pp. 242113 ◽  
Author(s):  
E. Aubry ◽  
C. Testelin ◽  
F. Bernardot ◽  
M. Chamarro ◽  
A. Lemaître
Keyword(s):  
Quantum Dots ◽  
Ground State ◽  
Spin Splitting ◽  
Inas Quantum Dots ◽  
Electron Ground State

Electron ground state energy level determination of ZnSe self-organized quantum dots embedded in ZnS

2003 ◽  
Vol 93 (9) ◽  
pp. 5325-5330 ◽  
Author(s):  
L. W. Lu ◽  
C. L. Yang. ◽  
J. Wang ◽  
I. K. Sou ◽  
W. K. Ge
Keyword(s):  
Quantum Dots ◽  
Energy Level ◽  
Ground State Energy ◽  
Ground State ◽  
State Energy ◽  
Self Organized ◽  
Electron Ground State

Ground-state switching characteristics in vertically-coupled InGaN/GaN quantum dots

2013 ◽  
Vol 63 (11) ◽  
pp. 2269-2272 ◽  
Author(s):  
Seoung-Hwan Park ◽  
Woo-Pyo Hong ◽  
Jong-Jae Kim
Keyword(s):  
Quantum Dots ◽  
Ground State ◽  
State Switching ◽  
Switching Characteristics

scholarly journals Effects of CsSnxPb1−xI3 Quantum Dots as Interfacial Layer on Photovoltaic Performance of Carbon-Based Perovskite Solar Cells

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chi Zhang ◽  
Zhiyuan He ◽  
Xuanhui Luo ◽  
Rangwei Meng ◽  
Mengwei Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Photogenerated Electron ◽  
Depletion Region ◽  
Band Alignment ◽  
Back Surface ◽  
The One ◽  
Carbon Based

AbstractIn this work, inorganic tin-doped perovskite quantum dots (PQDs) are incorporated into carbon-based perovskite solar cells (PSCs) to improve their photovoltaic performance. On the one hand, by controlling the content of Sn2+ doping, the energy level of the tin-doped PQDs can be adjusted, to realize optimized band alignment and enhanced separation of photogenerated electron–hole pairs. On the other hand, the incorporation of tin-doped PQDs provided with a relatively high acceptor concentration due to the self-p-type doping effect is able to reduce the width of the depletion region near the back surface of the perovskite, thereby enhancing the hole extraction. Particularly, after the addition of CsSn0.2Pb0.8I3 quantum dots (QDs), improvement of the power conversion efficiency (PCE) from 12.80 to 14.22% can be obtained, in comparison with the pristine device. Moreover, the experimental results are analyzed through the simulation of the one-dimensional perovskite/tin-doped PQDs heterojunction.

scholarly journals Two-term expansion of the ground state one-body density matrix of a mean-field Bose gas

2021 ◽  
Vol 60 (3) ◽  
Author(s):  
Phan Thành Nam ◽  
Marcin Napiórkowski
Keyword(s):  
Density Matrix ◽  
Ground State ◽  
Mean Field ◽  
Interaction Strength ◽  
Bose Gas ◽  
Body Density ◽  
The Mean ◽  
The One ◽  
Mean Field Regime ◽  
Number Of Particles

AbstractWe consider the homogeneous Bose gas on a unit torus in the mean-field regime when the interaction strength is proportional to the inverse of the particle number. In the limit when the number of particles becomes large, we derive a two-term expansion of the one-body density matrix of the ground state. The proof is based on a cubic correction to Bogoliubov’s approximation of the ground state energy and the ground state.

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