Benefits of homoepitaxy on the properties of nonpolar (Zn,Mg)O/ZnO quantum wells on a-plane ZnO substrates
- Centre de Recherche sur l'Hetero-Epitaxie et ses Applications (CRHEA), Centre National de la Recherche Scientifique (CNRS), Rue B. Gregory, F-06560 Valbonne Sophia Antipolis (France)
We report on the properties of nonpolar (Zn,Mg)O/ZnO quantum wells (QW) homoepitaxially grown by molecular beam epitaxy on a-plane ZnO substrates. We demonstrate a drastic improvement of the structural properties. We compare the photoluminescence properties of nonpolar homoepitaxial QWs and nonpolar heteroepitaxial QWs grown on sapphire and show that the reduction in structural defects and the improvement of surface morphology are correlated with a strong enhancement of the photoluminescence properties: reduction in full width at half maximum, strong increase in the luminescence intensities and their thermal stability. The comparison convincingly demonstrates the interest of homoepitaxial nonpolar QWs for bright UV emission applications.
- OSTI ID:
- 21466903
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 8 Vol. 97; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
CORUNDUM
CRYSTAL DEFECTS
CRYSTAL GROWTH
CRYSTAL GROWTH METHODS
CRYSTAL STRUCTURE
EMISSION
EPITAXY
EVALUATION
INTERFACES
LUMINESCENCE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MATERIALS
MINERALS
MOLECULAR BEAM EPITAXY
MORPHOLOGY
NANOSTRUCTURES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE STABILITY
PHOTOLUMINESCENCE
PHOTON EMISSION
QUANTUM WELLS
SAPPHIRE
SEMICONDUCTOR MATERIALS
STABILITY
SUBSTRATES
SURFACES
ZINC COMPOUNDS
ZINC OXIDES
77 NANOSCIENCE AND NANOTECHNOLOGY
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
CORUNDUM
CRYSTAL DEFECTS
CRYSTAL GROWTH
CRYSTAL GROWTH METHODS
CRYSTAL STRUCTURE
EMISSION
EPITAXY
EVALUATION
INTERFACES
LUMINESCENCE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MATERIALS
MINERALS
MOLECULAR BEAM EPITAXY
MORPHOLOGY
NANOSTRUCTURES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE STABILITY
PHOTOLUMINESCENCE
PHOTON EMISSION
QUANTUM WELLS
SAPPHIRE
SEMICONDUCTOR MATERIALS
STABILITY
SUBSTRATES
SURFACES
ZINC COMPOUNDS
ZINC OXIDES