A5050754223- Silicon and Solar Cell Technologies
- solar cell performance optimization
- Nanowire Synthesis and Applications
- Silicon Nanostructures and Photoluminescence
- Chalcogenide Semiconductor Thin Films
- Semiconductor materials and interfaces
- Semiconductor materials and devices
- Recycling and Waste Management Techniques
- Semiconductor Lasers and Optical Devices
- Semiconductor Quantum Structures and Devices
- Advancements in Photolithography Techniques
Université de Sherbrooke
2022-2024
Umicore (Belgium)
2023
IMEC
2023
Fraunhofer Institute for Solar Energy Systems
2023
General Electric (Canada)
2023
Centre for Interdisciplinary Research in Rehabilitation
2022
Centre de Nanosciences et de Nanotechnologies
2022
Laboratoire Nanotechnologies et Nanosystèmes
2022
The Porous germanium Efficient Epitaxial LayEr Release (PEELER) process is introduced allowing the fabrication of wafer scale detachable monocrystalline Ge nanomembranes compatible with III–V material growth on porous and substrate reuse.
Epitaxial thin film detachment and substrate reuse is one of the promising approaches to reduce weight cost triple junction (3J) solar cells on Ge for both terrestrial space PV. This approach based epitaxial growth high-quality cell materials porosified substrate. The mesoporous layer created by electrochemical etching undergoes thermal induced reconstruction leading formation voided weak suitable epilayers detachment. low-cost, scalable large surfaces allows several cycles upon appropriate...
New massive markets for space multi-junction solar cells are being discussed globally. For such an explosive increase in demand to materialize, a more sustainable and affordable Ge substrate technology is required. To this end, lithography-based Ge-on-Nothing electrochemical process-based porous wafers were developed. Both approaches yield uniform smooth monocrystalline Ge-on-Ge engineered substrates after annealing, of which the top layer weakly attached mother substrate. High-quality grown...
III-V photovoltaic cells typically use germanium (Ge) as a substrate for the epitaxial growth, however, this material contributes significantly to overall price of multijunction solar cells. In order reduce environmental and economic cost cells, we have developed porosification technique using bipolar electrochemical etching (BBE) create weak layer between Ge layers. This approach allows easy separation grown layers subsequent reuse germanium. As evidence potential method, compared...
Summary form only. III-V multi-junction solar cells on Ge substrate are widely used for space PV applications. However, challenges related to weight and cost reduction still encountered. Porous (PGe) lift-off is one of the reliable approaches allowing cell detachment (mass reduction) while offering multiple reuses (cost reduction). Accordingly, adhesion epilayer through PGe reconstructed weak layer (nm scale pillars) needs be investigated optimized offer scalable controllable detachment. In...