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Study of porous III–V semiconductors by electron spectroscopies (AES and XPS) and optical spectroscopy (PL): Effect of ionic bombardment and nitridation process
- Source :
- Surface Science, Surface Science, Elsevier, 2007, 601 (18), pp.4531-4535. ⟨10.1016/j.susc.2007.04.186⟩, Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces, 2007, 601 (18), pp.4531-4535. ⟨10.1016/j.susc.2007.04.186⟩
- Publication Year :
- 2007
- Publisher :
- Elsevier BV, 2007.
-
Abstract
- Electron spectroscopy (AES and XPS) and photoluminescence analysis (PL) were used to study porous layers elaborated by electrochemical etching of p-GaAs and n-InP substrates. Surface characterizations have been performed on the as received porous substrates, ions bombarded and nitridated porous layers. Porous surfaces of GaAs(1 0 0) and InP(1 0 0) have been compared after different treatments: Argon ion bombardment and nitridation with a glow discharge source (GDS) in UHV. These processes have been followed by Auger measurements (AES). The effects of the bombardment and the nitridation of porous InP were studied. The PL investigations of the porous GaAs layer show visible and infrared photoluminescence bands. Quantum confinement in the nanocrystallites of GaAs formed by electrochemical etching can explain the luminescence of the porous GaAs layers.
- Subjects :
- 010302 applied physics
Glow discharge
Photoluminescence
Materials science
business.industry
Analytical chemistry
02 engineering and technology
Surfaces and Interfaces
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Electron spectroscopy
Surfaces, Coatings and Films
Semiconductor
X-ray photoelectron spectroscopy
0103 physical sciences
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
Materials Chemistry
[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
0210 nano-technology
business
Porous medium
Spectroscopy
Luminescence
ComputingMilieux_MISCELLANEOUS
Subjects
Details
- ISSN :
- 00396028 and 18792758
- Volume :
- 601
- Database :
- OpenAIRE
- Journal :
- Surface Science
- Accession number :
- edsair.doi.dedup.....8b248f627ee59c3d5cf1876f3a9e4d44