Aïcha Hessler-Wyser
Senior Scientist
aicha.hessler@epfl.ch +41 21 693 48 30 https://www.epfl.ch/labs/pvlab/
Citizenship: CH
EPFL STI IMT PV-LAB
MC A2 305 (Bâtiment MC)
Rue de la Maladière 71b, CP 526
2002 Neuchâtel 2
Web site: Web site: https://pvlab.epfl.ch/
Fields of expertise
TEM, SEM
Photovoltaïcs
Material Science
Materials for Energy
Nanophysics
Metallurgy (metals, superalloys, SMA, powders...)
Biography
After a Master and a PhD in Physics at EPFL in the field of Electron Microscopy, I joined the Centre for Electron Microscopy and Microanalysis of the University of Western Australia (UWA) in Perth in 2000. In 2002, I came back to EPFL at the Centre for Electron Microscopy (CIME) of EPFL as scientific researcher with Prof. C. Hébert, and as responsible for various projects in the field of material science (solid oxide fuel cells, photovoltaic and metallurgy). I have supervised 6 PhD students in material sciences, and took part of the teaching duties for bachelor, master and PhD students, as well as in the TEM users training and support. In 2012, I joint part time the Laboratory of Photovoltaïcs and Thin-Film Electronics (PVlab) as deputy director of the laboratory. I work full time there since 2014.School Assembly
I have been part of the basic science school council and of the school assembly (AE) for nearly 5 and 9 years, respectively. It gave me the opportunity to express my opinion on various project and to defend EPFL collaborator's interests. I appreciated the constructive way that AE communicates with the Direction and tries to find optimal solutions for the whole community. I would like to continue to be active in school participation, therefore I am again candidate for the school assembly. In addition, as part of IMT EPFL Neuchâtel, I believe it is very important that external antenna from EPFL has representative at the school assembly to maintain a good connection with the main campus life.Publications
Infoscience publications
Infoscience
No time for drifting: Comparing performance and applicability of signal detrending algorithms for real-time fMRI
Neuroimage. 2019-05-01. DOI : 10.1016/j.neuroimage.2019.02.058.Constriction Rate Modulation Can Drive Cell Size Control and Homeostasis in C. crescentus
Iscience. 2018-06-29. DOI : 10.1016/j.isci.2018.05.020.Heart Rhythm Classification using Short-term ECG Atrial and Ventricular Activity Analysis
2017. Computing in Cardiology 2017, Rennes, France, September 24-27, 2017. DOI : 10.22489/CinC.2017.067-120.Duality in the Escherichia coli and methicillin resistant Staphylococcus aureus reduction mechanism under actinic light on innovative co-sputtered surfaces
Applied Catalysis A: General. 2015. DOI : 10.1016/j.apcata.2015.03.028.New evidence for TiO2 uniform surfaces leading to complete bacterial reduction in the dark: Critical issues
Colloids And Surfaces B-Biointerfaces. 2014. DOI : 10.1016/j.colsurfb.2014.09.060.Combustion synthesis of cadmium sulphide nanomaterials for efficient visible light driven hydrogen production from water
Journal Of Chemical Sciences. 2014. DOI : 10.1007/s12039-014-0629-5.The LHCb Detector at the LHC
Journal of Instrumentation. 2008. DOI : 10.1088/1748-0221/3/08/S08005.Photocatalytic discoloration of Methyl Orange on innovative parylene–TiO2 flexible thin films under simulated sunlight
Applied Catalysis B: Environmental. 2008. DOI : 10.1016/j.apcatb.2007.10.006.Study of new sheep bone and Zn/Ca ratio around TiAlV screw: PIXE-RBS analysis
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms. 2008. DOI : 10.1016/j.nimb.2008.01.025.Flexible polymer TiO2 modified film photocatalysts active in the photodegradation of azo-dyes in solution
Inorganica Chimica Acta. 2008. DOI : 10.1016/j.ica.2007.05.062.ZnSO4-TiO2 Doped Catalyst with Higher Activity in Photoctalytic
Applied Catalysis B. 2007. DOI : 10.1016/j.apcatb.2007.05.025.Synthesis of monodispersed palladium nanoparticles to study structure sensitivity of solvent-free selective hydrogenation of 2-methyl-3-butyn-2-ol
JOURNAL OF CATALYSIS. 2007. DOI : 10.1016/j.jcat.2006.12.011.Highly dispersed PTFE/Co3O4 flexible films as photocatalyst showing fast kinetic performance for the discoloration of azo-dyes under solar irradiation
Journal of Photochemistry and Photobiology A-Chemistry. 2007. DOI : 10.1016/j.jphotochem.2006.10.033.Accelerated photodegradation (minute range) of the commercial azo-dye Orange II mediated by Co3O4/Raschig rings in the presence of oxone
Journal of Molecular Catalysis A: Chemical. 2007. DOI : 10.1016/j.molcata.2007.03.023.Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE): Photocatalytic applications
WATER RESEARCH. 2007. DOI : 10.1016/j.watres.2006.11.020.Erratum to “Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE). Photocatalytic applications"
Water Research. 2007. DOI : 10.1016/j.watres.2007.03.036.Nonthermal plasma Abatement of trichloroethylene Enhanced by Photocatalysis
Journal of Physical Chemistry C. 2007. DOI : 10.1021/jp066731o.Preparation and structural characterization of thin-film CdTe/CdS heterojunctions
Journal of Optoelectronics and Advanced Materials. 2006.Performance and characterization of Ag-cotton and Ag/TiO2 loaded textiles during the abatement of E. coli
Journal of Photochemistry and Photobiology A: Chemistry. 2006. DOI : 10.1016/j.jphotochem.2005.12.020.Self-Cleaning cotton textiles surfaces modified by photoactive SiO2/TiO2 coating
Journal of Molecular Catalysis A-Chemical. 2006. DOI : 10.1016/j.molcata.2005.08.059.Stabilization mechanism of TiO2 on flexible fluorocarbon films as a functional photocatalyst
Journal of Molecular Catalysis A: Chemical. 2006. DOI : 10.1016/j.molcata.2006.07.021.Cross section investigations of compositions and sub-structures of tips obtained by focused electron beam induced deposition
Advanced Engineering Materials. 2005. DOI : 10.1002/adem.200500061.Dynamics and characterization of an innovative Raschig rings-Ti02 composite photocatalyst
Journal of Molecular Catalysis A: Chemical. 2005. DOI : 10.1016/j.molcata.2005.04.060.Low-dimensional chainlike assemblies of TiO2 nanorod-stabilized Au nanoparticles
Chemical Communications. 2005. DOI : 10.1039/B415466E.Thermal effects during focused electron beam induced deposition of nanocomposite magnetic-cobalt-containing tips
microelectronic engineering. 2004. DOI : 10.1016/S0167-9317(04)00138-8.Role of metal nanoparticles in TiO2/Ag nanocomposite-based microheterogeneous photocatalysis
Journal of Physical Chemistry B. 2004. DOI : 10.1021/jp0379751.Photocatalytic synthesis of silver nanoparticles stabilized by TiO2 nanorods: A semiconductor/metal nanocomposite in homogeneous nonpolar solution
Journal of the American Chemical Society. 2004. DOI : 10.1021/ja0395846.Electron beam induced deposition of rhodium from the precursor [RhCl(PF3)2]2: morphology, structure and chemical composition
Journal of Crystal Growth. 2004. DOI : 10.1016/j.jcrysgro.2004.02.006.Nano-structure analysis of magnetic Co-containing tips obtained by Focused Electron Beam Induced Deposition
MNE, Cambridge, UK, 22-25 September 2003.Focused electron beam induced deposition of rhodium containing composite nanostructures
2002.Focused-electron-beam-induced deposition of freestanding three-dimensional nanostructures of pure coalesced copper crystals
Applied Physics Letters. 2002. DOI : 10.1063/1.1517180.Focused electron beam induced deposition of high resolution magnetic scanning probe tips
Maerials. Research Society Symposium Proceedings. 2002. DOI : 10.1557/PROC-706-Z9.24.1.Effect of Beam Parameters in Electron Beam Induced Deposition of Rhodium from a Carbon Free Precursor: A Systematic Study
2000.Indications from 195Pt NMR for a temperature-dependent metal-nonmetal transition of small platinum particles in zeolites
Physical Review B. 1995. DOI : 10.1103/PhysRevB.52.8407.Wedge cleaving for TEM samples preparation and interface analysis
1994. p. 1019-1020.Direction-of-arrival estimation for a lens-based array
IEEE Transactions on Antennas and Propagation. 1994. DOI : 10.1109/8.299566.Copper film growth by chemical vapor deposition. Electrical and optical measurements in real time, and studies of morphology
Journal of The Electrochemical Society. 1993. DOI : 10.1149/1.2056160.Electron microscopy and 195Pt nuclear magnetic resonance of platinum particles in a zeolite-Y matrix
Surface Science. 1993. DOI : 10.1016/0039-6028(93)90333-F.Wedge cleaving and ultramicrotomy as alternative TEM sample preparation methods in materials science
Mat. res. soc. symp. Proc.. 1990. DOI : 10.1557/PROC-199-263.Bombardement ionique avec des ions d'iode : effets en surface
Helvetica Physica Acta. 1989.Ionic bombardment with iodine ions: surface effects
Helvetica Physica Acta. 1989.Selected publications
| Jeangros, Q
Hansen, T.W.
Wagner, J.B,
Dunin-Borkowski, R.E.
H�bert, C.
Van herle, J
Hessler-Wyser, A Acta Materialia, Vol 67 (2014), 362-372 |
Oxidation mechanism of nickel particles studied in an environmental transmission electron microscope |
| Pasche, G
SCheel, M
Sch�ublin, R
H�bert, C.
Rappaz, M
Hessler-Wyser, A Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 44(9):(2013) 4119-4123 |
Time-resolved X-ray microtomography observation of inter metallic formation between solid Fe and liquid Al |
| Schuler, A
Wuillemin, Z
Hessler-Wyser, A
Comminges, C
Steriner, N. Y
Van herle, J Journal of Power Sources, Vol 211 (2012) 177-183 |
Cr-poisoning in (La,Sr)(Co, Fe)O3 cathodes after 10'000h SOFC stack testing |
| Vannod, J
Bornert, M
Bidaux, J-E
Bataillard, L
Karimi, A
Drezet, J-M
Rappaz, M
Hessler-Wyser, A Acta Materialia, Vol 59, 17 (2011) 6538-6546 |
Mechanical and microstructural integrity of nickel-titanium and stainless steel laser joined wires |
| Cusanelli, G., R. Fl�kiger, A. Hessler-Wyser, F. Bobard, R. Demellayer, and R. Perez Journal of Materials Processing Technology, 2004. 149(1-3): p. 289-295 |
Microstructure at submicron scale of the white layer produced by EDM technique |
| Leifer, K., S. Mautino, H. Weman, A. Rudra, E. Pelucchi, F. Bobard, A. Wyser, and E. Kapon Design and Nature, 2004. 6: p. 131 |
Use of quantitative EELS and cathodoluminescence for study of carrier confinement and diffusion in self organized vertical quantum wells |
| Ballif, C., D.M. Huljic, G. Willeke, and A. Hessler-Wyser Applied Physics Letters, 2003. 82(12): p. 1878-1880 |
Silver thick-film contacts on highly doped n-type silicon emitters: Structural and electronic properties of the interface |
| Crevoiserat, S., T. Lehnert, A. Hessler-Wyser, and R. Gotthardt Journal De Physique. IV: JP, 2001. 11(8) |
TEM studies of in situ martensitic transformation in NiTi thin films |
| Hessler-Wyser, A., A. Cuenat, M. D�beli, C. Abromeit, and R. Gotthardt Philosophical Magazine Letters, 2001. 81(12): p. 893-899 |
Multilayered phase formation after high-fluence implantation of nickel into aluminium |
| Cuenat, A., R. Sch�ublin, A. Hessler-Wyser, and R. Gotthardt Ultramicroscopy, 2000. 83(3-4): p. 179-191 |
Structure analysis by diffraction of amorphous zones created by Ni ion implantation into pure Al. Ultramicroscopy |
| Wyser, A., R. Gotthardt, and R. Sch�ublin Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 1996. 107(1-4): p. 273-275 |
Amorphization in Al induced by high-energy Ni ion implantation |
Teaching & PhD
Teaching
Materials Science and Engineering
PhD Students
Courtant Marie Amélie Camille, Ongaro Chiara, Othman Mostafa Rabie Shlaly Bahr,Past EPFL PhD Students
Deillon Léa , Faes Antonin , Hain Caroline , Jeangros Quentin Thomas , Landucci Federica , Libraro Sofia , Pasche Guillaume , Schuler Josef Andreas , Thomet Jonathan Emanuel , Vannod Jonas ,Courses
Introduction to microscopy Laboratory work
This course of introduction to microscopy aims at giving an overview of the various techniques of microstructure and composition analysis of materials. It focuses in particular on electron and optical microscopy. This course is composed of lectures and practical demonstrations on microscopes.