Length dependence of the optical transition energies of the exactly solvable Hubbard model for linear polyenes

1985 ◽  
Vol 28 (5) ◽  
pp. 581-591 ◽  
Author(s):  
Katsufumi Hashimoto
Keyword(s):  
Hubbard Model ◽  
Optical Transition ◽  
Transition Energies ◽  
Length Dependence ◽  
Exactly Solvable ◽  
Linear Polyenes

Exactly solvable site-dependent Hubbard model

1999 ◽  
Vol 59 (7) ◽  
pp. 4553-4556 ◽  
Author(s):  
Feng Pan ◽  
J. P. Draayer
Keyword(s):  
Hubbard Model ◽  
Exactly Solvable

scholarly journals Universal Kataura Plot for Optical Transition Energies of Single-Walled Carbon Nanotubes (abstract)

2009 ◽  
Author(s):  
Jong Hyun Choi ◽  
Michael S. Strano ◽  
Beverly Karplus Hartline ◽  
Renee K. Horton ◽  
Catherine M. Kaicher
Keyword(s):  
Carbon Nanotubes ◽  
Optical Transition ◽  
Single Walled Carbon Nanotubes ◽  
Transition Energies ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Interband Optical Transition Energies in Type-II PbSe/PbS Core/Shell Quantum Dots

2017 ◽  
Vol 6 (1) ◽  
pp. 80-86
Author(s):  
S. N. Saravanamoorthy ◽  
A. John Peter
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Shell Thickness ◽  
Optical Transition ◽  
Hole Pair ◽  
Core Shell ◽  
Type Ii ◽  
Electron Hole ◽  
Transition Energies ◽  
Electron Hole Pair

Electronic and optical properties of Type-II lead based core/shell semiconducting quantum dots are reported. Binding energies of electron–hole pair, optical transition energies and the absorption coefficients are investigated taking into account the geometrical confinement in PbSe/PbS core/shell quantum dot nanostructure. The energies are obtained with the increase of shell thickness for various inner core radii. The probability densities of electron and hole wave functions of radial coordinate of the core PbSe and PbS shell quantum dots are presented. The optical transition energy with the spatial confinement is brought out. The electronic properties are obtained using variational approach whereas the compact density matrix method is employed for the nonlinear optical properties. The results show that (i) a decrease in binding energy is obtained when the shell thickness increases due to more separation of electron–hole pair and (ii) the energy band gap decreases with the increase in the shell thickness resulting in the reduction of the higher energy interband transitions.

scholarly journals Exactly solvable extended Hubbard model

1996 ◽  
Vol 53 (4) ◽  
pp. R1685-R1688 ◽  
Author(s):  
D. F. Wang
Keyword(s):  
Hubbard Model ◽  
Extended Hubbard Model ◽  
Exactly Solvable

Optical transition energies of GaInP quantum wells with GaInP/AlInP superlattice barriers

1994 ◽  
Vol 76 (2) ◽  
pp. 1355-1357 ◽  
Author(s):  
Y. Seko ◽  
S. Fukatsu ◽  
Y. Shiraki ◽  
M. Fuse
Keyword(s):  
Quantum Wells ◽  
Optical Transition ◽  
Transition Energies
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