Project Title:

Growth of III-V Ternary Crystals by Liquid-Phase Electro-Epitaxy

15.01-5544
Growth of III-V Ternary Crystals by Liquid-Phase Electro-Epitaxy
Microgravity Research Associates
PO Box 10505
Midland
TX
79702
Tadeusz
Bryskiewicz
(915-684-5544)
LeRC

Abstract:

Through sponsorship of four years of research at MIT on growing of high-quality crystals
using Liquid Phase Electroepitaxy (LPEE), the company can produce bulk GaAs crystals
approaching 25 mm in diameter and 5 mm in thickness with a purity, structural perfection,
homogeneity, and luminescence efficiency far superior to melt grown material. This
process will be extended to grow high-efficiency (in terms of luminescence intensity),
bulk ternary crystals that are compositionally uniform with epitaxial quality and
approaching 25 mm in diameter and 5 mm in thickness. These crystals, not achievable
by other growth techniques, would be a new class of the highest quality substrate
materials for optoelectronic and microwave devices.
Phase I will study which ternary compounds are in greatest demand and what characteristics
are desired for devices. This will set priorities and pinpoint the necessary resources.
Phase II will see the research, development, and production of the crystal leading
to Phase III commercial deployment.

Potential Commercial Application:

Potential Commercial Applications:  Ternary III-V substrate materials can be used
in fabricating photodetectors, light-emitting diodes, semiconductor lasers, cascade
solar cells, phototransistors, bipolar transistors, and high-frequency FET's and
HEMT's.