Exciton Fine Structure in Lead Chalcogenide Quantum Dots: Valley Mixing and Crucial Role of Intervalley Electron–Hole Exchange

Nano Letters ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 8897-8902
Author(s):  
Ivan D. Avdeev ◽  
Mikhail O. Nestoklon ◽  
Serguei V. Goupalov
Keyword(s):  
Quantum Dots ◽  
Fine Structure ◽  
Crucial Role ◽  
Lead Chalcogenide ◽  
Electron Hole

Optical Properties of Cds Quantum Dots: The Key Role of the Spin-Orbit and Coulomb Interactions

1999 ◽  
Vol 571 ◽  
Author(s):  
M. Chamarro ◽  
V. Voliotis ◽  
M. Dib ◽  
T. Gacoin ◽  
C. Delerue ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Tight Binding ◽  
Spin Orbit ◽  
Coulomb Interactions ◽  
Electron Hole ◽  
Small Quantum ◽  
Cds Quantum Dot ◽  
Growth Method ◽  
Order Of Magnitude

ABSTRACTWe study theoretically and experimentally the effects of the Coulomb and the spin-orbit coupling on the electronic structure of small quantum dots. A tight-binding calculation with restricted configuration interaction is developed in a typical case: very small cubic quantum dots for which the electron-hole exchange interaction is of the order of magnitude of the spinorbit interaction. Experimentally, resonant photoluminescence and photoluminescence excitation are used to obtain information on a single size of CdS quantum dot obtained by a chemical growth method.

scholarly journals The role of the electron-hole exchange in the spin mixing of excited-shell excitons in quantum dots

2010 ◽  
Author(s):  
Ş. C. Bădescu ◽  
T. L. Reinecke ◽  
Marília Caldas ◽  
Nelson Studart
Keyword(s):  
Quantum Dots ◽  
Electron Hole

Fine Structure of Negatively and Positively Charged Excitons in Semiconductor Quantum Dots: Electron-Hole Asymmetry

2007 ◽  
Vol 98 (3) ◽  
Author(s):  
M. Ediger ◽  
G. Bester ◽  
B. D. Gerardot ◽  
A. Badolato ◽  
P. M. Petroff ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fine Structure ◽  
Semiconductor Quantum Dots ◽  
Electron Hole ◽  
Positively Charged

scholarly journals 10. The Role of Plasma in the Primeval Nebula

1977 ◽  
Vol 39 ◽  
pp. 561-568
Author(s):  
H. Alfven ◽  
G. Arrhenius ◽  
D. A. Mendis
Keyword(s):  
Fine Structure ◽  
Strong Evidence ◽  
Crucial Role ◽  
Solar Nebula ◽  
Present Knowledge ◽  
Physical Processes ◽  
Asteroidal Belt

The role of plasma and hydromagnetic processes in the primeval solar nebula is evaluated. In the light of the present knowledge of particles and fields in space it is difficult to avoid the conclusion that they must have played a crucial role in the emplacement of the material as well as its subsequent condensation into “planetesimals.” Strong evidence in support of these processes in the primeval nebula is provided by the dynamical fine structure of the asteroidal belt and the Saturnian rings. The importance of current planetary magnetospheric as well as cometary research in clarifying certain physical processes believed to have occurred in the primeval nebula is stressed.

Micro-photoluminescence of isolated hexagonal GaN/AlN quantum dots : role of the electron-hole dipole

2007 ◽  
Author(s):  
R. Bardoux ◽  
T. Guillet ◽  
P. Lefebvre ◽  
T. Taliercio ◽  
T. Bretagnon ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Hole

Fine structure of electron-hole complexes in single semimagnetic quantum dots

2007 ◽  
Author(s):  
A. V. Chernenko ◽  
A. S. Brichkin ◽  
V. D. Kulakovskii ◽  
E. A. Chekhovich ◽  
S. V. Ivanov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fine Structure ◽  
Electron Hole

Mechanisms for intraband energy relaxation in semiconductor quantum dots: The role of electron-hole interactions

2000 ◽  
Vol 61 (20) ◽  
pp. R13349-R13352 ◽  
Author(s):  
V. I. Klimov ◽  
A. A. Mikhailovsky ◽  
D. W. McBranch ◽  
C. A. Leatherdale ◽  
M. G. Bawendi
Keyword(s):  
Quantum Dots ◽  
Energy Relaxation ◽  
Semiconductor Quantum Dots ◽  
Electron Hole

Radiative recombination in photoexcited quantum dots up to room temperature: The role of fine-structure effects

2010 ◽  
Vol 81 (24) ◽  
Author(s):  
T. Kümmell ◽  
S. V. Zaitsev ◽  
A. Gust ◽  
C. Kruse ◽  
D. Hommel ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fine Structure ◽  
Radiative Recombination ◽  
Room Temperature
Sign in / Sign up

Export Citation Format

Share Document