E. Maayan et al., SELECTIVE GROWTH OF GAAS INGAP HETEROSTRUCTURES BY PHOTO-ENHANCED ORGANOMETALLIC CHEMICAL-VAPOR-DEPOSITION, Journal of crystal growth, 135(1-2), 1994, pp. 23-30
Selective epitaxial growth of GaAs on GaAs and In0.49Ga0.51P surfaces,
using photo-enhanced organometallic chemical vapor deposition, was in
vestigated. The growth rate dependence on illumination intensity, trim
ethylgallium partial pressure, and temperature is reported. In-situ pa
tterning and three-dimensional shaping during growth of GaAs/InGaP bur
ied heterostructures, are demonstrated. The experimental results are i
n good agreement with a simple model, in which the decomposition of ad
sorbed trimethylgallium is assisted by surface recombination of photo-
excited free carriers.