Jesper Wallentin, Associate Prof.
Our research concerns the intersection of nanoscience and X-ray science. We use X-rays to investigate nanostructured devices, and we develop nanostructures as X-ray detectors. We have a strong collaboration with the Nanomax beamline at MAX IV, and we also visit other synchrotrons for experiments. Most of the projects also involve colleagues in NanoLund, and we are frequent users of the Lund Nano Lab.
We can offer many kinds of different MSc and BSc thesis projects, focusing on X-ray analysis, data analysis or nanofabrication. Please contact Jesper for more information. You can find a non-exhaustive list of ideas for projects under the headline "Semiconductor nanostructure".
Bachelor and Master projects at the Division of Synchrotron Radiation Research
Ongoing Research Projects
Publications
An updated and complete list of publications on Google Scholar.
A selected list of recent work (links will open publishers' websites):
- H. Dierks, Z. Zhang, N. Lamers, and J. Wallentin, "3D X-ray microscopy with a CsPbBr3 nanowire scintillator" - Nano Res. (2022)
- Z. Zhang, N. Lamers, C. Sun, C. Hetherington, I. G. Scheblykin, and J. Wallentin, "Free-Standing Metal Halide Perovskite Nanowire Arrays with Blue-Green Heterostructures" - Nano Lett. (2022)
- Z. Zhang, H. Dierks, N. Lamers, C. Sun, K. Nováková, C. Hetherington, I. G. Scheblykin, and J. Wallentin, "Single-Crystalline Perovskite Nanowire Arrays for Stable X-ray Scintillators with Micrometer Spatial Resolution" - ACS Applied Nano Materials 5 (1), 881 (2022)
- D. Dzhigaev et al., "Three-dimensional coherent x-ray diffraction imaging of ferroelastic domains in single CsPbBr3 perovskite nanoparticles" - New J. Phys. 23 (6), 063035 (2021)
- L. A. B. Marcal et al., "In Situ Imaging of Ferroelastic Domain Dynamics in CsPbBr3 Perovskite Nanowires by Nanofocused Scanning X-ray Diffraction" - ACS Nano 14 (11), 15973 (2020)
- H. Dierks and J. Wallentin, "Experimental optimization of X-ray propagation-based phase contrast imaging geometry" - Opt. Express 28 (20), 29562-29575 (2020)
- S Hammarberg et al., "High resolution strain mapping of a single axially heterostructured nanowire using scanning X-ray diffraction" - Nano Res. 13 (9), 2460 (2020)
- L Chayanun et al.: "Nanoscale mapping of carrier collection in single nanowire solar cells using X-ray beam induced current" - J. Synchrotron Radiat. 26 (1) (2019)
- A. Troian et al, "Nanobeam X-ray fluorescence dopant mapping reveals dynamics of in situ Zn-doping in nanowires" - Nano Lett. 18 (10), 6461
- H. Wallander and J. Wallentin, "Simulated sample heating from a nanofocused X-ray beam" - J. Synchrotron Radiat. 24 (5) (2017)
- J. Wallentin et al., "Bending and twisted lattice tilt in strained core-shell nanowires revealed by nanofocused X-ray diffraction" - Nano Lett. 17 (7) (2017)
- J. Wallentin, M. Osterhoff, and T. Salditt, "In operando X-ray diffraction reveals electrically induced strain and bending in single nanowire device" - Adv. Mater. 28 (9), 1788 (2016)
Research group
Postdocs
- Klara Suchan
- Megan Hill
PhD students
- Nils Lamers
- Huaiyu Chen
- Ziyun Huang
Financing
- European Research Council, ERC, Starting Grant WIREDETECT, 801847
- Stiftelsen Olle Engkvist Byggmästare, Swedish Foundations' Starting Grant
- Röntgen-Ångström Cluster grant, together with Tim Saditt in Göttingen, Germany, and Magnus Borgström in Lund
- Swedish Research Council (VR)
- Crafoord
- NanoLund