Growth dynamics of InGaAs/GaAs by MBE
The growth dynamics of the InGaAs/GaAs system have been investigated by desorption mass spectrometry (DMS). Indium desorption spectra indicate the presence of one or two desorption mechanisms depending on the V/III beam equivalent pressure ratio. The activation energy associated with one of the desorption processes is found to be 1.3 e V and independent of V/III ratio and arsenic species. Analysis of the decay curve allows the calculation of the indium surface population during growth. This population is compared for the different growth conditions investigated. Indium incorporation coefficient curves as a function of substrate temperature are presented. Indium incorporation is found to be enhanced using high V/III ratio and the arsenic dimer, As2.
Duke Scholars
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Applied Physics
- 4016 Materials engineering
- 3403 Macromolecular and materials chemistry
- 0912 Materials Engineering
- 0306 Physical Chemistry (incl. Structural)
- 0303 Macromolecular and Materials Chemistry
Citation
Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Applied Physics
- 4016 Materials engineering
- 3403 Macromolecular and materials chemistry
- 0912 Materials Engineering
- 0306 Physical Chemistry (incl. Structural)
- 0303 Macromolecular and Materials Chemistry