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Current Topics in Crystal Growth Research   Volumes    Volume 2  Issue 1
Gas-source molecular beam epitaxy of Gax In1-xAsyP1-y on GaAs
G. Zhang, M. Pessa
Pages: 47 - 60
Number of pages: 14
Current Topics in Crystal Growth Research
Volume 2  Issue 1

Copyright © 1995 Research Trends. All rights reserved

We present a detailed study on GaxIn1-xAsyP1-y, lattice-matched to GaAs, grown by gas-source molecular beam epitaxy (GSMBE). First, we investigate the growth mechanism of GSMBE growth of GaxIn1-xAsyP1-y/GaAs. Secondly, characterizations, such as X-ray diffractions, Hall measurements, and room temperature and low temperature photoluminescences, have been carried out for the GSMBE-grown GaxIn1-xAsyP1-y/GaAs over the entire composition range. Finally, high performance Al-free Ga(In)As(P)/GaInAsP/GaInP compressive-, zero- and tensile-strained, and strain-compensated quantum well lasers, emitting at 0.78 ≤ λ ≤ 1.1 μm, have been fabricated. Also low leakage current GaInAsP/GaAs heterojunction diodes are prepared. The results demonstrate that GSMBE is capable to grow high quality GaInAsP lattice-matched to GaAs over the entire composition range, and that GSMBE-grown GaInAsP is a promising material for optoelectronic applications and a possible substitute for AlGaAs for some special applications.
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