Measurements of the Diffusion Length in Gaas/Algaas Quantum-Well (Qw) Structures by Cathodoluminescence - Comparison of the Bulk and Qw Diffusion Channels

In a recent paper, we measured the hole diffusion length in a single quantum well (SQW) by a novel method using SEM-cathodoluminescence, assuming that the carriers diffuse only in the SQW. This assumption needs to be checked. Therefore, we present here a model for the carrier transport in the SQW and in the bulk barrier to deduce the lateral hole distribution in both layers. The main lateral transport is shown to be carried by the holes in the QW (2D diffusion) due to their confinement in the well.


Published in:
Microscopy of Semiconducting Materials 1993, 643-646
Year:
1993
Publisher:
Iop Publishing Ltd
ISSN:
0951-3248
Keywords:
Note:
Univ leipzig,fachbereich phys,o-7010 leipzig,germany. univ cadiz,dept ciencia mat,e-11510 puerto real,spain. Araujo, d, ecole polytech fed lausanne,inst micro & optoelectr,ch-1015 lausanne,switzerland.
ISI Document Delivery No.: BA56Y
Times Cited: 0
Cited Reference Count: 10
Cited References:
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