Experimental Semiconductor Physics

Course with Participations of Group Members

Offers for Theses in the Group

Magneto-Optical Effects of Novel Hybrid 2D Materials

The group

The Deschler group is an independent research group at the Walter Schottky Institute, established through the DFG Emmy-Noether Program and an ERC Starting Grant. Our research focuses on the design and ultrafast dynamics of functional materials for energy applications. 

More information can be found on our group website at www.wsi.tum.de

Your project

You will investigate the outstanding properties of novel 2D magnetic semiconductors with the design and operation of cutting-edge magneto-optical setups to explore the interaction of magnetism and luminescence in these materials.  Specifically, this could be work on one of the following topics or a mixture of both in agreement with your supervisor.

Design of Novel 2D Magnetic Hybrid Perovskites

Due to their outstanding optoelectronic properties and high defect tolerance, organo-metal halide perovskites form an ideal system for efficient magnetic doping.  

There are a lot of promising semiconducting perovskites showing a strong photoluminescence, which are suitable as a host material for magnetic doping with transition metal ions like Mn2+, Fe2+, Co2+ and Ni2+. In this project you will fabricate high-quality crystals and thin films with solution-/vapor-based synthesis and investigate them with structural, magnetic and optical measurements to identify the most promising materials.

Construction and Operation of Magneto-Optical Setups

Materials that combine magnetic and semiconducting properties are desired for spintronic applications.  Optical properties such as the polarization of the luminescence can be controlled via the spin-alignment in these materials. In this project you will design and build a setup for the investigation of magneto-optical effects like Kerr rotation, Faraday rotation, magnetic circular dichroism and magnetic circularly polarized luminescence. 

In your Master’s project in our group, you will have the chance to gain hands-on experience in some of the most exciting fields of condensed matter physics. You will run experiments at cryogenic temperatures, control magnetic fields and laser irradiation and learn state-of-the art ultrafast spectroscopy. Dedicated support from a PhD student or postdoc will be available during your project.  You will be expected to make scientific discoveries and contribute to the dynamic atmosphere of our group.

Your application

Applications should be sent to felix.deschler@wsi.tum.de. Please include your CV, a copy of your BSc thesis and the transcript of grades of your BSc studies.  

suitable as

• Master’s Thesis Condensed Matter Physics
• Master’s Thesis Applied and Engineering Physics

Supervisor: Felix Deschler

Ultrafast Spectroscopy of Functional Material Dynamics

The group

The Deschler group is an independent research group at the Walter Schottky Institute of TU Munich, established through the DFG Emmy-Noether Program and an ERC Starting Grant. Our research focuses on the ultrafast dynamics of functional materials for energy applications. 

More information can be found on our website at www.wsi.tum.de

Your project

You will take resonsibility for the design and operation of cutting-edge spectroscopic setups to explore excitation dynamics in functional materials. Specifically, this could be work on one of the following topics 

Ultrafast Luminescence Spectroscopy 

Maximizing luminescence yields is desired in optoelectronic applications and requires insights into the fundamentals of the excitation recombination mechanisms. Here, you will use the detection of photon emission at very short times after excitation of the material to gain fundamental information about the interactions of electrons and holes or the band structure of the material. You will develop and operate a highly-sensitive femtosecond luminescence setup to explore radiative recombination in a previously inaccessible temporal regime in a range of seminal semiconductors, such as hybrid perovskites or 2D materials.

Spatially-resolved Spin Dynamics 

Materials that combine magnetic and semiconducting properties are desired for spintronic applications.  Optical properties such as the polarization of the luminescence can be controlled via the spin-alignment in these materials. In this project you will design ultrafast optical setups that use Faraday rotation to detect optical spin alignment and transfer in a range of novel materials, such as 2D magnetic semiconductors.  From the combination of excited state population and spin dynamics you will explore the underlying physical mechanisms of spin alignment.

In your Master’s project in our group, you will have the chance to gain hands-on experience in state-of-the art broadband spectroscopy, as well as detailed understanding of functional semiconductor dynamics.  Dedicated support from a PhD student or postdoc will be available during your project.  You will be expected to make scientific discoveries and contribute to the dynamic atmosphere of our group.

Your application

Applications should be sent to felix.deschler@wsi.tum.de. Please include your CV, a copy of your BSc thesis and the transcript of grades of your BSc studies.  

suitable as

• Master’s Thesis Condensed Matter Physics
• Master’s Thesis Applied and Engineering Physics

Supervisor: Felix Deschler

Current and Finished Theses in the Group