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Growth optimization for self-catalyzed GaAs-based nanowires on metal-induced crystallized amorphous substrate
- Source :
- Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena. 34:02L117
- Publication Year :
- 2016
- Publisher :
- American Vacuum Society, 2016.
-
Abstract
- The growth of monocrystalline semiconductor nanowires on arbitrary substrates via the metal-induced crystallization (MIC) process extends the possible combinations of substrates and epitaxial active materials. However, it is still difficult to accomplish high-density vertical nanowire growth on the MIC polycrystalline Si(111) substrate. Here, the authors report on the growth of self-catalyzed GaAs nanowires by molecular beam epitaxy on MIC polycrystalline Si(111) substrates with different surface oxide conditions. Forming the surface oxide by annealing the freshly hydrofluoric acid-etched MIC polycrystalline Si(111) substrate in an ambient atmosphere is found to be a key step to grow high-density GaAs nanowires. Moreover, the addition of Sb during nanowire growth improves the density of vertical nanowires. Photoluminescence measurements reveal a high optical quality of the GaAs nanowires, indicating that the nanowires grown on MIC polycrystalline Si(111) substrate may be used as building blocks for semico...
- Subjects :
- 010302 applied physics
Photoluminescence
Materials science
Annealing (metallurgy)
business.industry
Process Chemistry and Technology
Nanowire
Nanotechnology
02 engineering and technology
021001 nanoscience & nanotechnology
Epitaxy
01 natural sciences
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Amorphous solid
Monocrystalline silicon
0103 physical sciences
Materials Chemistry
Optoelectronics
Electrical and Electronic Engineering
Vapor–liquid–solid method
0210 nano-technology
business
Instrumentation
Molecular beam epitaxy
Subjects
Details
- ISSN :
- 21662754 and 21662746
- Volume :
- 34
- Database :
- OpenAIRE
- Journal :
- Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena
- Accession number :
- edsair.doi...........6589083ab4342962fb92fdba5bd8a0c1