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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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Massabuau, Fcp
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Constant Photocurrent Method to Probe the Sub‐Bandgap Absorption in Wide Bandgap Semiconductor Films: The Case of α‐Ga<sub>2</sub>O<sub>3</sub>citations
- 2024Constant Photocurrent Method to Probe the Sub-Bandgap Absorption in Wide Bandgap Semiconductor Films: The Case of α-Ga 2 O 3
- 2021Defect structures in (001) zincblende GaN/3CSiC nucleation layerscitations
- 2021Defect structures in (001) zincblende GaN/3C-SiC nucleation layerscitations
- 2021Directly correlated microscopy of trench defects in InGaN quantum wellscitations
- 2020Piezoelectric III-V and II-VI semiconductorscitations
- 2020Integrated wafer scale growth of single crystal metal films and high quality graphenecitations
- 2020Dislocations as channels for the fabrication of sub-surface porous GaN by electrochemical etchingcitations
- 2019Investigation of MOVPE-grown zincblende GaN nucleation layers on 3CSiC/Si substratescitations
- 2019Thick adherent diamond films on AlN with low thermal barrier resistancecitations
- 2019Low temperature growth and optical properties of α-Ga2O3 deposited on sapphire by plasma enhanced atomic layer depositioncitations
- 2017Mechanisms preventing trench defect formation in InGaN/GaN quantum well structures using hydrogen during GaN barrier growth
- 2017X-ray diffraction analysis of cubic zincblende III-nitrides
- 2017Dislocations in AlGaN: core structure, atom segregation, and optical propertiescitations
- 2014Structure and strain relaxation effects of defects in InxGa1-xN epilayerscitations
- 2014Structure and strain relaxation effects of defects in In x Ga 1-x N epilayers
- 2013Correlations between the morphology and emission properties of trench defects in InGaN/GaN quantum wellscitations
- 2012Morphological, structural, and emission characterization of trench defects in InGaN/GaN quantum well structurescitations
- 2011The effects of Si doping on dislocation movement and tensile stress in GaN filmscitations
Places of action
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article
X-ray diffraction analysis of cubic zincblende III-nitrides
Abstract
Solving the green gap problem is a key challenge for the development of future LED-based light systems. A promising approach to achieve higher LED efficiencies in the green spectral region is the growth of III-nitrides in the cubic zincblende phase. However, the metastability of zincblende GaN along with the crystal growth process often lead to a phase mixture with the wurtzite phase, high mosaicity, high densities of extended defects and point defects, and strain, which can all impair the performance of light emitting devices. X-ray diffraction (XRD) is the main characterization technique to analyze these device-relevant structural properties, as it is very cheap in comparison to other techniques and enables fast feedback times. In this review, we will describe and apply various XRD techniques to identify the phase purity in predominantly zincblende GaN thin films, to analyze their mosaicity, strain state, and wafer curvature. The different techniques will be illustrated on samples grown by metalorganic vapor phase epitaxy on pieces of 4'' SiC/Si wafers. We will discuss possible issues, which may arise during experimentation, and provide a critical view on the common theories. ; We would like to thank Anvil Semiconductors Ltd. for providing 3C-SiC on Si templates for our experiments, and Innovate UK for financial support within the Energy Catalyst Round 2—Early Stage Feasibility scheme (Ref. 132135): 'To demonstrate the potential to make low cost, high efficiency LEDs using 3C-SiC substrates'. S-L Sahonta and M J Kappers would also like to acknowledge the support of EPSRC through platform grant no. EP/M010589/1: 'Beyond Blue: New Horizons in Nitrides'. D J Wallis would like to acknowledge the support of EPSRC through grant no. EP/N01202X/1.