Effect of a spatially dependent effective mass on the hydrogenic impurity binding energy in a finite parabolic quantum well

1998 ◽  
Vol 58 (16) ◽  
pp. 10578-10582 ◽  
Author(s):  
Xiang-Hong Qi ◽  
Xiao-Jun Kong ◽  
Jian-Jun Liu
Keyword(s):  
Binding Energy ◽  
Quantum Well ◽  
Effective Mass ◽  
Hydrogenic Impurity

scholarly journals Barrier Thickness and Hydrostatic Pressure Effects on Hydrogenic Impurity States in Wurtzite GaN/AlxGa1−xN Strained Quantum Dots

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Guangxin Wang ◽  
Xiuzhi Duan ◽  
Wei Chen
Keyword(s):  
Quantum Dots ◽  
Hydrostatic Pressure ◽  
Binding Energy ◽  
Effective Mass ◽  
Dielectric Constants ◽  
Pressure Effects ◽  
Physical Parameters ◽  
Barrier Thickness ◽  
Hydrogenic Impurity ◽  
Donor Binding Energy

Within the framework of the effective mass approximation, barrier thickness and hydrostatic pressure effects on the ground-state binding energy of hydrogenic impurity are investigated in wurtzite (WZ) GaN/AlxGa1−xN strained quantum dots (QDs) by means of a variational approach. The hydrostatic pressure dependence of physical parameters such as electron effective mass, energy band gaps, lattice constants, and dielectric constants is considered in the calculations. Numerical results show that the donor binding energy for any impurity position increases when the hydrostatic pressure increases. The donor binding energy for the impurity located at the central of the QD increases firstly and then begins to drop quickly with the decrease of QD radius (height) in strong built-in electric fields. Moreover, the influence of barrier thickness along the QD growth direction and Al concentration on donor binding energy is also investigated. In addition, we also found that impurity positions have great influence on the donor binding energy.

The binding energy of hydrogenic impurity in quantum well structures

Physica B+C ◽  
1988 ◽  
Vol 150 (3) ◽  
pp. 361-368 ◽  
Author(s):  
W.C. Chou ◽  
W.J. Huang ◽  
P.Y. Chu ◽  
C.S. Han ◽  
D.S. Chuu
Keyword(s):  
Binding Energy ◽  
Quantum Well ◽  
Hydrogenic Impurity ◽  
Quantum Well Structures

Optical determination of the heavy‐hole effective mass and exciton binding energy for a Si0.83Ge0.17/Si quantum well

1995 ◽  
Vol 78 (10) ◽  
pp. 6327-6329 ◽  
Author(s):  
Hosun Lee ◽  
E. D. Jones ◽  
S. R. Kurtz ◽  
T. Schmiedel ◽  
D. C. Houghton ◽  
...  
Keyword(s):  
Binding Energy ◽  
Quantum Well ◽  
Effective Mass ◽  
Heavy Hole ◽  
Exciton Binding Energy ◽  
Hole Effective Mass ◽  
Optical Determination
Sign in / Sign up

Export Citation Format

Share Document