Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 319-321 |
| Journal | Superlattices and Microstructures |
| Volume | 7 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1990 |
Fingerprint
Cite this
}
Measurement of the ambipolar carrier capture time in a gallium arsenide/aluminum gallium arsenide separate confinement heterostructure quantum well. / Blom, P.W.M.; Mols, R.F.X.A.M.; Haverkort, J.E.M.; Leijs, M.R.; Wolter, J.H.
In: Superlattices and Microstructures, Vol. 7, No. 4, 1990, p. 319-321.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Measurement of the ambipolar carrier capture time in a gallium arsenide/aluminum gallium arsenide separate confinement heterostructure quantum well
AU - Blom, P.W.M.
AU - Mols, R.F.X.A.M.
AU - Haverkort, J.E.M.
AU - Leijs, M.R.
AU - Wolter, J.H.
PY - 1990
Y1 - 1990
N2 - The carrier capture in a separate confinement heterostructure quantum well has been studied both experimentally and theoretically. Our calculations show that the electron and hole capture time vary strongly as a function of the excess energy. At an excess energy of 40 meV, both capture times are equal resulting in an ambipolar capture process which allows a direct comparison between theory and experiment. We carried out subpicosecond luminescence spectroscopy experiments and deduce an ambipolar overall capture time of 20 ps, a number which for the first time is in agreement with theoretical predictions. The quantum mechanical overall capture time of 20 ps gives rise to a classical local capture time of 3 ps which is determined from a diffusion model.
AB - The carrier capture in a separate confinement heterostructure quantum well has been studied both experimentally and theoretically. Our calculations show that the electron and hole capture time vary strongly as a function of the excess energy. At an excess energy of 40 meV, both capture times are equal resulting in an ambipolar capture process which allows a direct comparison between theory and experiment. We carried out subpicosecond luminescence spectroscopy experiments and deduce an ambipolar overall capture time of 20 ps, a number which for the first time is in agreement with theoretical predictions. The quantum mechanical overall capture time of 20 ps gives rise to a classical local capture time of 3 ps which is determined from a diffusion model.
U2 - 10.1016/0749-6036(90)90217-U
DO - 10.1016/0749-6036(90)90217-U
M3 - Article
VL - 7
SP - 319
EP - 321
JO - Superlattices and Microstructures
JF - Superlattices and Microstructures
SN - 0749-6036
IS - 4
ER -