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Tem and Sem Studies of Defects in Gainas and Gainasp Epitaxial-Layer Device-Type Structures

Published online by Cambridge University Press:  15 February 2011

M.M. Al-Jassim
Affiliation:
Department of Metallurgy and Science of Materials, Parks Road, Oxford OX1 3PH
M. Hockly
Affiliation:
Department of Metallurgy and Science of Materials, Parks Road, Oxford OX1 3PH
G.R. Booker
Affiliation:
Department of Metallurgy and Science of Materials, Parks Road, Oxford OX1 3PH
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Abstract

TEM and SEM studies have been carried out on a series of GaAs/GaInAs, InP/GaInAs and InP/GaInAsP device-type structures grown either by vapour phase epitaxy (VPE) or liquid phase epitaxy (LPE). By using the TEM high voltage electron microscope operating at 1000kV, a determination was made of the nature, origin and three-dimensional distribution of structural defects in these specimens (mainly dislocations and stacking faults). SEM EBIC and CL examinations were also performed to study the electrical and luminescent properties of these layers. The ultimate aim is to correlate structural information with electrical and luminescent properties, and with device performance.

Type
Research Article
Copyright
Copyright © Materials Research Society 1981

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References

REFERENCES

1. Hockly, M., Al-Jassim, M.M. and Booker, G.R., J. Microscopy 118, 117 (1980).Google Scholar
2. Fletcher, J. et al. , Inst.Phys.Conf.Ser. No. 52 (1980) pp. 153–6.Google Scholar