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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Munnik, F.
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Topics
Publications (13/13 displayed)
- 2024Defect Engineering of Ta3N5 Photoanodes: Enhancing Charge Transport and Photoconversion Efficiencies via Ti Dopingcitations
- 2019Design of high-temperature solar-selective coatings based on aluminium titanium oxynitrides AlyTi1-y(OxN1-x). Part 1: Advanced microstructural characterisation and optical simulationcitations
- 2011Iodine in alluvial platinum-palladium nuggets: evidence for biogenic precious-metal fixationcitations
- 2010Al1-xInxN/GaN bilayers: Structure, morphology, and optical propertiescitations
- 2010N-doped photocatalytic titania thin films on active polymer substratescitations
- 2009Deposition of functional coatings on polyethylene terephthalate films by magnetronplasma-enhanced chemical vapour depositioncitations
- 2009Room-temperature ferromagneticlike behavior in Mn-implanted and postannealed InAs layers deposited by molecular beam epitaxycitations
- 2008Deuterium influence on optical gap of amorphous carbon diamond-like carbon (DLC) thin filmcitations
- 2004Nanostructural and mechanical properties of nanocomposite nc -TiC/ a -C:H films deposited by reactive unbalanced magnetron sputteringcitations
- 2004DLC films on LiTaO3 for SAW devices
- 2004Optomechanical characterisation of compressively prestressed silicon oxynitride films deposited by plasma-enhanced chemical vapour deposition on silicon membranescitations
- 2004Optomechanical characterisation of compressively prestressed silicon oxynitride films deposited by plasma-enhanced chemical vapour deposition on silicon membranescitations
- 2004Nanostructural and mechanical properties of nanocomposite nc-TiC/a-C:H films deposited by reactive unbalanced magnetron sputteringcitations
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article
Al1-xInxN/GaN bilayers: Structure, morphology, and optical properties
Abstract
<p>High quality Al1-xInxN/GaN bilayers, grown by metal organic chemical vapor deposition (MOCVD), were characterized using structural and optical techniques. Compositional analysis was performed using Rutherford backscattering spectrometry (RBS) and elastic recoil detection analysis (ERDA). The InN molar fraction x decreased approximately linearly with increasing growth temperature and ranged from x = 0.13 to 0.24. Up to x = 0.20 the layers grow pseudomorphically to GaN with good crystalline quality. These layers show a smooth surface with V-shaped pits. Two layers with InN contents around 24% showed partial strain relaxation. However, the mechanisms leading to relaxation of compressive strain are very different in the two samples grown both at similar temperature but with different growth rates. One sample shows a decreased c/a ratio, as expected for relaxation of the compressive strain, while In was shown to be homogeneously distributed with depth. The other sample started to grow with x = 0.24 but relaxed mainly by reduction of the incorporated InN content towards the lattice-match composition of x similar to 0.17. Both samples have an increased surface roughness. All samples show strong Al1-xInxN band edge luminescence with large bowing parameter and Stokes' shifts. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</p>