A5030322155- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and devices
- Nanowire Synthesis and Applications
- Bone Tissue Engineering Materials
- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Orthopedic Surgery and Rehabilitation
- Tendon Structure and Treatment
- Cellular and Composite Structures
- Luminescence Properties of Advanced Materials
- Dental Implant Techniques and Outcomes
- 3D Printing in Biomedical Research
- Titanium Alloys Microstructure and Properties
- Graphene and Nanomaterials Applications
- Collagen: Extraction and Characterization
- Glass properties and applications
Western University
2023-2024
Saint Mary's University
2019
École Nationale Supérieure d'Ingénieurs de Caen
2009
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2009
Centre National de la Recherche Scientifique
2009
Centre de Recherche sur les Ions, les Matériaux et la Photonique
2008-2009
Université de Caen Normandie
2009
We have studied the current transport and electroluminescence properties of metal oxide semiconductor (MOS) devices in which layer, is codoped with silicon nanoclusters erbium ions, made by magnetron sputtering. Electrical measurements allowed us to identify a Poole–Frenkel conduction mechanism. observe an important contribution Si films, no evidence Fowler–Nordheim tunneling. The results suggest that ions these layers generated energy transfer from nanoparticles. Finally, we report power...
Hydrogels are three-dimensional (3D) water-swellable polymeric matrices that used extensively in tissue engineering and drug delivery. can be conformed into any desirable shape using 3D bio-printing, making them suitable for personalized treatment. Among the different bio-printing techniques, digital light processing (DLP)-based printing offers advantage of quickly fabricating high resolution structures, reducing chances cell damage during process. Here, we have DLP to bio-print...
Series of Er-doped Si-rich silicon oxide layers were studied with the aim optimizing coupling between Er ions and Si-based sensitizers. The grown at substrate temperature 400 600°C by cosputtering three confocal targets: Si, SiO2, Er2O3. influence Si excess (5–15at.%) annealing (500–1100°C) was examined for two concentrations (3.5×1020 ∼1021cm−3). We report first observation significant photoluminescence (PL) from as-grown samples excited a nonresonant 476nm line, lifetime in range 1.3–4ms....
Optical properties of directly excited erbium (Er3+) ions have been studied in silicon rich oxide materials codoped with Er3+. The spectral dependence the direct excitation cross section (σdir) Er3+ atomic I415/2→I411/2 transition (around 0.98 μm) has measured by time resolved μ-photoluminescence measurements. We determined that σdir is 9.0±1.5×10−21 cm2 at 983 nm, least twice larger than value on a stoichiometric SiO2 matrix. This result, combination measurement population as function...
The basic collagen fibril structure of tendons continues to be debated in the literature. Some studies have proposed that fibrils are longitudinally discontinuous, with load-bearing ability tendon dependent on interfibrillar shear strength. Other evidence indicates probably structurally continuous, running uninterrupted from osteotendinous myotendinous junction. In this study we explored question continuity by examining response loading. Tendons were subjected high stress and/or long...
We have studied the current transport and electro-luminescence mechanisms of four layers Si oxide co-doped with nanoclusters erbium ions. Electrical measurements identified different conduction in separate high-field low-field regimes, including Poole-Frenkel hopping. In particular, hopping through Si-ncl is evidenced by C-V measurements. also observed an important contribution defects from conduction, no evidence Fowler-Nordheim tunnelling. The results suggest that electroluminescence ions...