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Aïcha Hessler-Wyser

aicha.hessler@epfl.ch +41 21 693 48 30 https://www.epfl.ch/labs/pvlab/

Nationality: CH

EPFL STI IMT PV-LAB
MC A2 305 (Bâtiment MC)
Rue de la Maladière 71b, CP 526
2002 Neuchâtel 2

Expertise

TEM, SEM Photovoltaïcs Material Science Materials for Energy Nanophysics Metallurgy (metals, superalloys, SMA, powders...)

Education

Doctorat

| Physique

1999 – 1999 EPFL
Directed by Rolf Gotthardt

Ing�nieure EPF

| Physique

1994 – 1994 EPFL
Directed by J.-D. Ganière

Selected publications

Oxidation mechanism of nickel particles studied in an environmental transmission electron microscope

Jeangros, Q Hansen, T.W. Wagner, J.B, Dunin-Borkowski, R.E. H�bert, C. Van herle, J Hessler-Wyser, A
Published in Acta Materialia, Vol 67 (2014), 362-372 in

Time-resolved X-ray microtomography observation of inter metallic formation between solid Fe and liquid Al

Pasche, G SCheel, M Sch�ublin, R H�bert, C. Rappaz, M Hessler-Wyser, A
Published in Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 44(9):(2013) 4119-4123 in

Cr-poisoning in (La,Sr)(Co, Fe)O3 cathodes after 10'000h SOFC stack testing

Schuler, A Wuillemin, Z Hessler-Wyser, A Comminges, C Steriner, N. Y Van herle, J
Published in Journal of Power Sources, Vol 211 (2012) 177-183 in

Mechanical and microstructural integrity of nickel-titanium and stainless steel laser joined wires

Vannod, J Bornert, M Bidaux, J-E Bataillard, L Karimi, A Drezet, J-M Rappaz, M Hessler-Wyser, A
Published in Acta Materialia, Vol 59, 17 (2011) 6538-6546 in

Microstructure at submicron scale of the white layer produced by EDM technique

Cusanelli, G., R. Fl�kiger, A. Hessler-Wyser, F. Bobard, R. Demellayer, and R. Perez
Published in Journal of Materials Processing Technology, 2004. 149(1-3): p. 289-295 in

Use of quantitative EELS and cathodoluminescence for study of carrier confinement and diffusion in self organized vertical quantum wells

Leifer, K., S. Mautino, H. Weman, A. Rudra, E. Pelucchi, F. Bobard, A. Wyser, and E. Kapon
Published in Design and Nature, 2004. 6: p. 131 in

Silver thick-film contacts on highly doped n-type silicon emitters: Structural and electronic properties of the interface

Ballif, C., D.M. Huljic, G. Willeke, and A. Hessler-Wyser
Published in Applied Physics Letters, 2003. 82(12): p. 1878-1880 in

TEM studies of in situ martensitic transformation in NiTi thin films

Crevoiserat, S., T. Lehnert, A. Hessler-Wyser, and R. Gotthardt
Published in Journal De Physique. IV: JP, 2001. 11(8) in

Multilayered phase formation after high-fluence implantation of nickel into aluminium

Hessler-Wyser, A., A. Cuenat, M. Döbeli, C. Abromeit, and R. Gotthardt
Published in Philosophical Magazine Letters, 2001. 81(12): p. 893-899 in

Structure analysis by diffraction of amorphous zones created by Ni ion implantation into pure Al. Ultramicroscopy

Cuenat, A., R. Schäublin, A. Hessler-Wyser, and R. Gotthardt
Published in Ultramicroscopy, 2000. 83(3-4): p. 179-191 in

Amorphization in Al induced by high-energy Ni ion implantation

Wyser, A., R. Gotthardt, and R. Schäublin
Published in Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 1996. 107(1-4): p. 273-275 in

No time for drifting: Comparing performance and applicability of signal detrending algorithms for real-time fMRI

R. Kopel; R. Sladky; P. Laub; Y. Koush; F. Robineau  et al.

Neuroimage. 2019-05-01. DOI : 10.1016/j.neuroimage.2019.02.058.

Notice détaillée

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Constriction Rate Modulation Can Drive Cell Size Control and Homeostasis in C. crescentus

A. Lambert; A. Vanhecke; A. Archetti; S. Holden; F. Schaber  et al.

Iscience. 2018-06-29. DOI : 10.1016/j.isci.2018.05.020.

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Heart Rhythm Classification using Short-term ECG Atrial and Ventricular Activity Analysis

S. Yazdani; P. Laub; A. Luca; J.-M. Vesin

2017. Computing in Cardiology 2017, Rennes, France, September 24-27, 2017. DOI : 10.22489/CinC.2017.067-120.

Notice détaillée

Duality in the Escherichia coli and methicillin resistant Staphylococcus aureus reduction mechanism under actinic light on innovative co-sputtered surfaces

S. Rtimi; M. Ballo; D. Laub; C. Pulgarin; J. Entenza  et al.

Applied Catalysis A: General. 2015. DOI : 10.1016/j.apcata.2015.03.028.

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New evidence for TiO2 uniform surfaces leading to complete bacterial reduction in the dark: Critical issues

J. Nesic; S. Rtimi; D. Laub; G. M. Roglic; C. Pulgarin  et al.

Colloids And Surfaces B-Biointerfaces. 2014. DOI : 10.1016/j.colsurfb.2014.09.060.

Notice détaillée

Combustion synthesis of cadmium sulphide nanomaterials for efficient visible light driven hydrogen production from water

A. D. Mani; N. Xanthopoulos; D. Laub; C. H. Subrahmanyam

Journal Of Chemical Sciences. 2014. DOI : 10.1007/s12039-014-0629-5.

Notice détaillée

The LHCb Detector at the LHC

T. L. Collaboration; A. A. Alves; L. M. A. Filho; A. F. Barbosa; I. Bediaga  et al.

Journal of Instrumentation. 2008. DOI : 10.1088/1748-0221/3/08/S08005.

Notice détaillée

Photocatalytic discoloration of Methyl Orange on innovative parylene–TiO2 flexible thin films under simulated sunlight

Y. Zhiyong; H. Keppner; D. Laub; E. Mielczarski; J. Mielczarski  et al.

Applied Catalysis B: Environmental. 2008. DOI : 10.1016/j.apcatb.2007.10.006.

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Study of new sheep bone and Zn/Ca ratio around TiAlV screw: PIXE-RBS analysis

G. Guibert; F. Munnik; J. D. Langhoff; B. Von Rechenberg; P. A. Buffat  et al.

Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms. 2008. DOI : 10.1016/j.nimb.2008.01.025.

Notice détaillée

Flexible polymer TiO2 modified film photocatalysts active in the photodegradation of azo-dyes in solution

Y. Zhiyong; D. Laub; M. Bensimon; J. Kiwi

Inorganica Chimica Acta. 2008. DOI : 10.1016/j.ica.2007.05.062.

Notice détaillée

ZnSO4-TiO2 Doped Catalyst with Higher Activity in Photoctalytic

Y. Zhiyong; M. Bensimon; V. Sarria; I. Stolichnow; W. Jardim  et al.

Applied Catalysis B. 2007. DOI : 10.1016/j.apcatb.2007.05.025.

Notice détaillée

Synthesis of monodispersed palladium nanoparticles to study structure sensitivity of solvent-free selective hydrogenation of 2-methyl-3-butyn-2-ol

N. Semagina; A. Renken; D. Laub; L. Kiwi-Minsker

JOURNAL OF CATALYSIS. 2007. DOI : 10.1016/j.jcat.2006.12.011.

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Highly dispersed PTFE/Co3O4 flexible films as photocatalyst showing fast kinetic performance for the discoloration of azo-dyes under solar irradiation

P. Raja; M. Bensimon; U. Klehm; P. Albers; D. Laub  et al.

Journal of Photochemistry and Photobiology A-Chemistry. 2007. DOI : 10.1016/j.jphotochem.2006.10.033.

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Accelerated photodegradation (minute range) of the commercial azo-dye Orange II mediated by Co3O4/Raschig rings in the presence of oxone

Y. Zhiyong; M. Bensimon; D. Laub; L. Kiwi-Minsker; W. Jardim  et al.

Journal of Molecular Catalysis A: Chemical. 2007. DOI : 10.1016/j.molcata.2007.03.023.

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Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE): Photocatalytic applications

Z. Yu; E. Mielczarski; J. Mielczarski; D. Laub; P. Buffat  et al.

WATER RESEARCH. 2007. DOI : 10.1016/j.watres.2006.11.020.

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Erratum to “Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE). Photocatalytic applications"

Z. Y. Yu; E. Mielczarski; J. Mielczarski; D. Laub; P. Buffat  et al.

Water Research. 2007. DOI : 10.1016/j.watres.2007.03.036.

Notice détaillée

Nonthermal plasma Abatement of trichloroethylene Enhanced by Photocatalysis

C. Subrahmanyam; M. Magureanu; D. Laub; A. Renken; L. Kiwi-Minsker

Journal of Physical Chemistry C. 2007. DOI : 10.1021/jp066731o.

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Preparation and structural characterization of thin-film CdTe/CdS heterojunctions

I. Salaoru; P. A. Buffat; D. Laub; A. Amariei; N. Apetroaei  et al.

Journal of Optoelectronics and Advanced Materials. 2006.

Notice détaillée

Performance and characterization of Ag-cotton and Ag/TiO2 loaded textiles during the abatement of E. coli

A. Rincon; C. Pulgarin; D. Laub; Xantopoulos; H.-J. Mathieu  et al.

Journal of Photochemistry and Photobiology A: Chemistry. 2006. DOI : 10.1016/j.jphotochem.2005.12.020.

Notice détaillée

Self-Cleaning cotton textiles surfaces modified by photoactive SiO2/TiO2 coating

T. Yuranova; R. Mosteco; J. Bandara; D. Laub; J. Kiwi

Journal of Molecular Catalysis A-Chemical. 2006. DOI : 10.1016/j.molcata.2005.08.059.

Notice détaillée

Stabilization mechanism of TiO2 on flexible fluorocarbon films as a functional photocatalyst

Y. Zhiyong; E. Mielczarski; J. Mielczarski; D. Laub; L. Kiwi-Minsker  et al.

Journal of Molecular Catalysis A: Chemical. 2006. DOI : 10.1016/j.molcata.2006.07.021.

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Cross section investigations of compositions and sub-structures of tips obtained by focused electron beam induced deposition

I. Utke; J. Michler; P. Gasser; C. Santschi; D. Laub  et al.

Advanced Engineering Materials. 2005. DOI : 10.1002/adem.200500061.

Notice détaillée

Dynamics and characterization of an innovative Raschig rings-Ti02 composite photocatalyst

P. Raja; M. Bensimon; A. Kulik; R. Foschia; D. Laub  et al.

Journal of Molecular Catalysis A: Chemical. 2005. DOI : 10.1016/j.molcata.2005.04.060.

Notice détaillée

Low-dimensional chainlike assemblies of TiO2 nanorod-stabilized Au nanoparticles

P. Cozzoli; E. Fanizza; M. Curri; D. Laub; A. Agostiano

Chemical Communications. 2005. DOI : 10.1039/B415466E.

Notice détaillée

Thermal effects during focused electron beam induced deposition of nanocomposite magnetic-cobalt-containing tips

I. Utke; T. Bret; D. Laub; P. Buffat; L. Scandella  et al.

microelectronic engineering. 2004. DOI : 10.1016/S0167-9317(04)00138-8.

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Role of metal nanoparticles in TiO2/Ag nanocomposite-based microheterogeneous photocatalysis

P. Cozzoli; E. Fanizza; R. Comparelli; M. Curri; A. Agostiano  et al.

Journal of Physical Chemistry B. 2004. DOI : 10.1021/jp0379751.

Notice détaillée

Photocatalytic synthesis of silver nanoparticles stabilized by TiO2 nanorods: A semiconductor/metal nanocomposite in homogeneous nonpolar solution

P. Cozzoli; R. Comparelli; E. Fanizza; M. Curri; A. Agostiano  et al.

Journal of the American Chemical Society. 2004. DOI : 10.1021/ja0395846.

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Electron beam induced deposition of rhodium from the precursor [RhCl(PF3)2]2: morphology, structure and chemical composition

F. Cicoira; K. Leifer; P. Hoffmann; I. Utke; B. Dwir  et al.

Journal of Crystal Growth. 2004. DOI : 10.1016/j.jcrysgro.2004.02.006.

Notice détaillée

Nano-structure analysis of magnetic Co-containing tips obtained by Focused Electron Beam Induced Deposition

I. Utke; D. Laub; T. Bret; P. Buffat; P. Hoffmann

MNE, Cambridge, UK, 22-25 September 2003.

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Focused electron beam induced deposition of rhodium containing composite nanostructures

F. Cicoira; I. Utke; G. Jaenchen; P. Hoffmann; B. Dwir  et al.

2002.

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Focused-electron-beam-induced deposition of freestanding three-dimensional nanostructures of pure coalesced copper crystals

I. Utke; A. Luisier; P. Hoffmann; D. Laub; P. Buffat

Applied Physics Letters. 2002. DOI : 10.1063/1.1517180.

Notice détaillée

Focused electron beam induced deposition of high resolution magnetic scanning probe tips

I. Utke; F. Cicoira; G. Jaenchen; P. Hoffmann; L. Scandella  et al.

Maerials. Research Society Symposium Proceedings. 2002. DOI : 10.1557/PROC-706-Z9.24.1.

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Effect of Beam Parameters in Electron Beam Induced Deposition of Rhodium from a Carbon Free Precursor: A Systematic Study

F. Cicoira; I. Utke; P. Hoffmann; B. Dwir; K. Leifer  et al.

2000.

Notice détaillée

Indications from 195Pt NMR for a temperature-dependent metal-nonmetal transition of small platinum particles in zeolites

Y. Tong; D. Laub; G. Schluz-Ekloff; A. Renouprez; J. Van der Klink

Physical Review B. 1995. DOI : 10.1103/PhysRevB.52.8407.

Notice détaillée

Wedge cleaving for TEM samples preparation and interface analysis

P. Ruterana; D. Laub

1994. p. 1019-1020.

Notice détaillée

Direction-of-arrival estimation for a lens-based array

S. N. Diggavi; J. J. Shynk; A. J. Laub

IEEE Transactions on Antennas and Propagation. 1994. DOI : 10.1109/8.299566.

Notice détaillée

Copper film growth by chemical vapor deposition. Electrical and optical measurements in real time, and studies of morphology

B. Lecohier; B. Calpini; J. M. Philippoz; H. Van den Bergh; D. Laub  et al.

Journal of The Electrochemical Society. 1993. DOI : 10.1149/1.2056160.

Notice détaillée

Electron microscopy and 195Pt nuclear magnetic resonance of platinum particles in a zeolite-Y matrix

Y. Tong; J. Van der Klink; G. Clugnet; A. Renouprez; D. Laub  et al.

Surface Science. 1993. DOI : 10.1016/0039-6028(93)90333-F.

Notice détaillée

Wedge cleaving and ultramicrotomy as alternative TEM sample preparation methods in materials science

P. Ruterana; D. Laub; P. Buffat

Mat. res. soc. symp. Proc.. 1990. DOI : 10.1557/PROC-199-263.

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Bombardement ionique avec des ions d'iode : effets en surface

R. Spycher; D. Laub; P. Buffat

Helvetica Physica Acta. 1989.

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Ionic bombardment with iodine ions: surface effects

R. Spycher; P. Buffat; D. Laub

Helvetica Physica Acta. 1989.

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Teaching & PhD

PhD Students

Marie Amélie Camille Courtant, Chiara Ongaro, Mostafa Othman, Yu-Hsuan Lai

Past EPFL PhD Students

Guillaume Pasche, Federica Landucci, Jonathan Thomet, Caroline Hain, Sofia Libraro

Past EPFL PhD Students as codirector

Antonin Faes, Jonas Vannod, Josef Andreas Schuler, Léa Deillon, Quentin Jeangros

Courses

Introduction to microscopy + Laboratory work

MSE-352

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.