Abstract
The effects of a uniform electric field on the binding energies of excitons and the subband energies in a GaAs/AlxGa1-xAs quantum well are studied by a perturbative variational approach. Our calculation is based on an effective-width infinite-well model. The effective-mass mismatch is also taken into account. Our results show that the electric field causes a large shift of the subband energy and exciton peak position. The calculated results are compared with the data observed from an optical-absorption experiment. Satisfactory agreement is obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 8054-8060 |
| Number of pages | 7 |
| Journal | Physical Review B |
| Volume | 44 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 1991 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
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Exciton binding energy in a GaAs/AlxGa1-xAs quantum well with uniform electric field. / Chuu, Der San; Shih, Yu-Tai.
In: Physical Review B, Vol. 44, No. 15, 01.01.1991, p. 8054-8060.Research output: Contribution to journal › Article
TY - JOUR
T1 - Exciton binding energy in a GaAs/AlxGa1-xAs quantum well with uniform electric field
AU - Chuu, Der San
AU - Shih, Yu-Tai
PY - 1991/1/1
Y1 - 1991/1/1
N2 - The effects of a uniform electric field on the binding energies of excitons and the subband energies in a GaAs/AlxGa1-xAs quantum well are studied by a perturbative variational approach. Our calculation is based on an effective-width infinite-well model. The effective-mass mismatch is also taken into account. Our results show that the electric field causes a large shift of the subband energy and exciton peak position. The calculated results are compared with the data observed from an optical-absorption experiment. Satisfactory agreement is obtained.
AB - The effects of a uniform electric field on the binding energies of excitons and the subband energies in a GaAs/AlxGa1-xAs quantum well are studied by a perturbative variational approach. Our calculation is based on an effective-width infinite-well model. The effective-mass mismatch is also taken into account. Our results show that the electric field causes a large shift of the subband energy and exciton peak position. The calculated results are compared with the data observed from an optical-absorption experiment. Satisfactory agreement is obtained.
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U2 - 10.1103/PhysRevB.44.8054
DO - 10.1103/PhysRevB.44.8054
M3 - Article
AN - SCOPUS:0010885861
VL - 44
SP - 8054
EP - 8060
JO - Physical Review B
JF - Physical Review B
SN - 0163-1829
IS - 15
ER -