Structural study of GaN grown on (001) GaAs by organometallic vapor phase epitaxy
- Authors
- Bae, IT; Seong, TY; Park, YJ; Kim, EK
- Issue Date
- 1999-07
- Publisher
- MINERALS METALS MATERIALS SOC
- Citation
- JOURNAL OF ELECTRONIC MATERIALS, v.28, no.7, pp.873 - 877
- Abstract
- Detailed transmission electron microscope (TEM) and transmission electron diffraction (TED) examination has been performed on organometallic vapor phase epitaxial GaN layers grown on (001) GaAs substrate to investigate microstructures and phase stability. TED and TEM results exhibit the occurrence of a mixed phase of GaN. The wurtzite (alpha) phase grains are embedded in the zinc-blende (beta) phase matrix. It is shown that there are two types of the wurtzite GaN phase, namely, the epitaxial wurtzite and the tilted wurtzite. The tilted wurtzite grains are rotated some degrees ranging from similar to 5 degrees to similar to 35 degrees regarding the GaAs substrate. A simple model is presented to describe the occurrence of the mixed phases and the two types of the wurtzite phase.
- Keywords
- MOLECULAR-BEAM EPITAXY; TRANSMISSION ELECTRON-MICROSCOPE; CUBIC GAN; FILMS; SEMICONDUCTORS; MORPHOLOGY; MOLECULAR-BEAM EPITAXY; TRANSMISSION ELECTRON-MICROSCOPE; CUBIC GAN; FILMS; SEMICONDUCTORS; MORPHOLOGY; GaN; transmission electron diffraction (TED); transmission electron microscope (TEM); metalorganic vapor phase epitaxy (MOVPE)
- ISSN
- 0361-5235
- URI
- https://pubs.kist.re.kr/handle/201004/142107
- DOI
- 10.1007/s11664-999-0212-x
- Appears in Collections:
- KIST Article > Others
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