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New approach to the atomic layer epitaxy of GaAs using a fast gas stream (1988)

Ozeki, M. ; Mochizuki, K. ; Ohtsuka, N. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 53 (1988), S. 1509-1511

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: A new growth method has been developed for the atomic layer epitaxy of GaAs. The gas system was based on a conventional metalorganic vapor phase epitaxial system but the decomposition of methylgallium was suppressed in the stagnant layer by using a fast pulsed gas stream from a jet nozzle. The method enabled us to grow high purity epitaxial layers with a clear self-limiting mechanism even at 560 °C. The variations in the growth rate with respect to various growth parameters were explained by the rate equations based on the selective adsorption of methylgallium on surface As atoms. The decomposition rate of methylgallium on the surface had an activation energy of 42 kcal/mole from 440 to 560 °C.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.99941

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