Open PostDoc Positions
PostDoc Positions funded through an Alexander v. Humboldt fellowship within the Henriette Herz program - check out the details here.Open PhD Positions
We currently have two open PhD positions in our group:- On a project dealing with the electronic properties of hybrid matter consisting of organic and van-der-Waals materials. Find more details here.
- On a project dealing with the investigation of organic semiconductors with local spectroscopic methods (scanning near-field microscopy (SNOM)). Find more details here.
Open Bachelor and Master Projects
In our labs we offer a wide range of bachelor and master projects, of which a few examples are listed below. If you are interested in one of these topics or the general work of the group, feel free to contact Prof. Thomas Weitz (thomas.weitz@uni-goettingen.de) or the responsible researcher for the project.For availability of potential topics for a PhD thesis please email Prof. Weitz directly.
Topic 3: Charge Transport in Low-Energy Ion Beam Implantation-Doped Graphene
Willke, P. et al. Nano Lett. 15, 5110−5115 (2015)
Controllably doping semiconductors to precisely modulate the local charge carrier density is crucial for electronic applications such as field-effect transistors and a broad range of signal detectors. The performance of these electronic devices is significantly influenced by the mobility of charge carriers in these semiconductor systems and there is a strong urge for investigating beyond-Si electronics to retain Moore’s law. Therefore, the aim of this thesis is to controllably dope mono- and bilayer graphene with nitrogen and boron via low-energy ion beam implantation. Furthermore, the defect concentration should be characterized and the impact of different doping levels on carrier mobilities should be investigated.
For more information ask Dr. Martin Statz (martin.statz@uni-goettingen.de).
For more information ask Dr. Martin Statz (martin.statz@uni-goettingen.de).
Topic 4: Quantum transport in suspended multilayer graphene
How do electrons interact with one another in ultra-clean graphene and its multialyers? Which novel quantum phases can appear? To answer these fundamental questions we engineer graphene layers that hang freely like a bridge in vacuum (typical sample layout see image on right) and measure their electrical properties at cryogenic temperatures. One example of a quantum phase we recently have discovered is detailed here: Geisenhof et al. Nature 598, 53-58 (2021)
Topic 5: Charge transport in novel two-dimensional metal-organic frameworks (MOFs)
Metal organic frameworks (MOFs) can be composed of chosen dedicated building blocks. This includes the tuning of band gaps and the possibility to introduce magnetic centers. In this thesis we aim to explore nanoscale charge transport in novel MOFs at cryogenic and room temperature.
Topic 6: Topological phases in graphene heterostructures
We are interested in influencing charge transport in graphene via the proximity of graphene to other two dimensional materials (e.g. MoS2). The goal of the thesis is to investigate the properties of such new hybrid devices in electric and magnetic fields and understand which of the characteristics of the initial materials dominates in the hybrid device.