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Lab'InSight Surface Treatments & Solar Energy - Focus on the Photovoltaic Electricity Sector - 21.11.2013
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PMR-LARN – Department of Physics
University of Namur
Prof. Guy Terwagne Director
Lab’Insight « event » - Brussels, 21st November 2013
Brussels – 21st November 2013
Watching the Lab’s video
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Applied research projects
Brussels – 21st November 2013
Nuclear Spectroscopy
Surface and interface
Medical Physics Plasma Assisted deposition
(RF,AC, DC)
Particles accelerator (2 MV)
Ion Implantor (150 kV)
Particles detectors -rays or X-rays
detectors
Simulations
Life Science
Material sciences
Industry
Hospital
University
Research center
Research axis
Research domains
Tools Clients
Students Astrophysics
Ion/Matter interactions
Ion Beam analysis techniques • Quantitative analysis of elements in nano-materials
• Nuclear techniques (NRA, PIGE, PIXE, RBS, ERDA,…) • non-destructive • sensitivity (ppm)
• Depth profiling of elements (RNRA) • surface and interface
Ion Implantation • Modification of materials properties (IBMM)
• All species from Mendeleiev periodic table • Implantation energies between 10keV6 MeV
Plasma assisted deposition techniques • DC, RF,…
3 Brussels – 21st November 2013
Fields of expertise and industrial targets
Development of 3rd generation of solar cells • synthetized by ion implantation (Si and Ge) and annealing
• nc-Si and nc-Ge
• High efficiency (>30 %) • based on Multiple Exiton Generation (MEG)
• Thin solar cells (30 µm) • Flexible
DLC coatings for automotive industry • Plasma reactive coatings • Hard coatings
4 Brussels – 21st November 2013
Fields of expertise and industrial targets
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ALATAÏS Ion Beam analysis facility for research, teaching an industry
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Tandetron accelerator (2 MV) equipped • Duoplasmotron source (1H, 2D, 3He, 4He) • SNICs source (all negative ions) • acceleration of near all species from Mendeleev periodic Table
5 equipped beam lines • All purpose (RBS, ERDA, NRA, PIXE/PIGE,…) • Cells irradiation • Ion Implantation • UHV and low background detection system • Particles detection chamber
Tools available at LARN
Brussels – 21st November 2013
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Ion Implanter • Low energy: 5-35keV • Ion implanter SAMES: 20-150 kV
Detectors • High efficiency (132%) HPGe detector • PIPS particles detectors • High resolution LEGe detector • Plastic scintillators
Deposition chambers and characterization • Plasma deposition chambers • Dektak and Pin on disc system • Oven up to 1700°C for 3" wafers
Tools available at LARN
Brussels – 21st November 2013
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Depth profiling of ligth elements at interface → Na profiling at the interface (RNRA, RBS,…) → SnO2(F)/Glass
→ RNRA : Na depth profiling → RBS : localize the interface
Services provided to companies
Brussels – 21st November 2013
RNRA 23Na(p,a)20Ne ER = 1010.5 keV E = 1634 keV
RBS Ep = 1.0 MeV
G.Terwagne & G.Deconninck, NIM B64(1992)153-155
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3G Photovoltaic cells: Si/Ge quantum dots → Si or Ge nanocrystals embedded in a silicon-based matrix (SiO2,
Si3N4…) : “Quantum dots” (QD) → Multiple Exciton Generation (MEG) produced by one incident photon → Theoretical efficiency up to 60 %
• Silicon-based cells : abundant, non toxic, stable • Thin films as active layer to reduce Si consumption • High deposition rates • Low-cost substrate (glass, metal, polymer,…)
Services provided to companies
Brussels – 21st November 2013
G.Terwagne & G.Deconninck, NIM B64(1992)153-155
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CONTACTS LABO
Prof. Guy Terwagne Director
Address : PMR-LARN
rue de Bruxelles, 61
5000 Namur
Phone : +32 (0)81 725478
Fax : +32 (0)81 725474
University of Namur/Physics Department Laboratoire d'Analyses par Réactions Nucléaires www.unamur.be
Brussels – 21st November 2013
