Ion Induced Nanostructures
We study processes during the interaction of low energy (10 eV – 50 keV) ions with different charge states with materials, especially for the controlled modification and nano-patterning of their surfaces. Such modifications can be material removal through sputtering of surface atoms but also near surface ion beam mixing, ion beam induced defect engineering, or implantation of guest atoms (see figure below). Bottom up as well as top down surface structuring can be achieved through the use of either broad beam irradiation or focused ion beam irradiation.
The first one allows to roughen, smoothen, or clean technical surfaces. Furthermore, the energy deposited by the continuous ion impact drives the surface out of equilibrium inducing many processes on the surface and the sub-surface region.
Alternatively, focused ion beams allow the top down structuring of surfaces or surface near regions with a high spatial resolution compatible with modern nanostructure fabrication requirements. In our group we employ a wide range of focused ion beams from very light nobel gas ions to small heavy ion clusters to understand the behaviour of materials and create state-of-the-art nanostructures.
Main research topics:
Self-driven Broadband Photodetector Based on MoSe2/FePS3 Van der Waals n-p Type-II Heterostructures
Quantitative nanoscale imaging using transmission He ion channelling contrast: Proof-of-concept and application to study isolated crystalline defects
Probing ultrafast laser plasma processes inside solids with resonant small angle X-ray scattering
L. Gaus, L. Bischoff, M. Bussmann, E. Cunningham, C. B. Curry, Juncheng E, E. Galtier, M. Gauthier, A. Laso García, M. Garten, S. Glenzer, J. Grenzer, C. Gutt, N. Hartley, L. Huang, U. Hübner, D. Kraus, H. J. Lee, E. E. McBride, J. Metzkes-Ng, B. Nagler, M. Nakatsutsumi, J. Nikl, M. Ota, A. Pelka, I. Prencipe, L. Randolph, M. Rödel, Y. Sakawa, H.-P. Schlenvoigt, M. Smid, F. Treffert, K. Voigt, K. Zeil, T. Cowan, U. Schramm, T. Kluge
- Resonant SAXS data used in publication: "Probing ultrafast … (Id 33444) HZDR-primary research data are used by this (Id 33470) publication
In-situ GISAXS observation of ion-induced nanoscale pattern formation on crystalline Ge(001) in the reverse epitaxy regime
- Data publication: In-situ GISAXS observation of … (Id 33255) HZDR-primary research data are used by this (Id 33171) publication
Controlled and deterministic creation of synthetic antiferromagnetic domains by focused ion beam irradiation
- Data publication: Controlled and deterministic creation of … (Id 33091) HZDR-primary research data are used by this (Id 33090) publication
Enhanced trion emission in monolayer MoSe2 by constructing a type-I van der Waals heterostructure
The npSCOPE: a new multimodal instrument for in-situ correlative analysis of nanoparticles
Revealing inflammatory indications induced by titanium alloy wear debris in periprosthetic tissue by label-free correlative high-resolution ion, electron and optical micro-spectroscopy
R. Podlipec, E. Punzón-Quijorna, L. Pirker, M. Kelemen, P. Vavpetič, R. Kavalar, G. Hlawacek, J. Štrancar, P. Pelicon, S. K. Fokter
- SEM-EDS datasets of titanium alloy wear debris in … (Id 32582) HZDR-primary research data are used by this (Id 32584) publication
Atomistic Simulations of Defect Production in Monolayer and Bulk Hexagonal Boron Nitride under Low- and High-Fluence Ion Irradiation
Fluorination of graphene leads to susceptibility for nanopore formation by highly charged ion impact
- Research data "Fluorination of graphene leads to … (Id 32397) HZDR-primary research data are used by this (Id 32396) publication
- Original PDF 1,9 MB Secondary publication