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Article
In-situ crystal growth and photoluminescence properties of YBO3: Tb3+ microstructures
Three-dimensional (3D) YBO3:Tb3+ flower-like and dense flower-like hierarchitecture constituted of nanoflakes are solvothermally synthesized in the presence of polyborate precursors in the mixture of ethanol and ...
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Article
Facile Synthesis and Effect of Eu, Tb Co-do** On the Tunable Luminescent Properties of YBO3
Eu3+/Tb3+co-doped YBO3 three-dimensional (3D) microstructures have been hydrothermally prepared by adjusting solvent and the molar ratio of Y3+ to B (Y/B) at 180 °C. The whole process was carried out under alkali...
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Article
Transmission Electron Microscopy Study of Interface Region of Aln / 6H-Sic
Transmission electron microscopy (TEM) study was performed to investigate the interface region of AlN/6H-SiC. Thick AlN layers were grown on a 3.5° off-axis 6H-SiC substrate at a temperature of 1790 °C for 100...
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Article
Defect Selective Etching of Thick Aln Layers Grown on 6H-Sic Seeds – A Transmission Electron Microscopy Study
In the present study, the type and densities of defects in AlN crystals grown on 6H-SiC seeds by the sublimation-recombination method were assessed. The positions of the defects in AlN were first identified by...
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Article
High Resolution Transmission Electron Microscopy Study of Thermal Oxidation of Single Crystalline Aluminum Nitride
The impact of process conditions and crystal properties on the structure of thermal oxides formed on AlN were determined by high resolution transmission electron microscopy (HRTEM). Oxidation for 2 hours at bo...
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Article
Strain Map** in InGaAsP Epitaxial Films by an X-Ray Diffraction Technique
A new x-ray diffraction method is developed to determine the full elastic strain tensor and its distribution about a strain center in single crystal materials. It is based on the recently developed Computer Ai...
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Article
Effect of Long Range Interaction on Diffusion in Cu/NiFe TernaryAlloy Composition Modulated Thin Films
Composition modulated (with wavelengths between 1.6 to 4.98 nm) Cu/NiFe ternary alloy thin films containing 53 at % Cu, 40 at % Ni, and 7 at % Fe were prdduced by the vapor-phase growth technique. The inter-di...