Experimental Semiconductor Physics

Course with Participations of Group Members

Offers for Theses in the Group

Design of Novel Hybrid Functional Materials

The Deschler group at the Walter Schottky Institute of TU Munich invites applications for 

Master Projects on Hybrid Functional Material Design

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 and their applications for energy applications. 

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

Your project

You will spearhead the design and fundamental understanding of novel functionality in hybrid materials.  Specifically, this could be work on one of the following topics 

• Exciton Control in Ultrathin Hybrid Perovskites 

Control of excitons in 2D materials (TMDCs, graphene, etc.) creates new physics that cannot be found in bulk, for example exotic band structures and valley polarizations. The ability to tune the binding energy and dielectric environment of excitons in these materials provides control for targeted applications.

In the class of layered perovskites, the crystal symmetry plays a crucial role for their band structure. We expect that ultrathin perovskite sheets show strong spin-dependent band modifications in analogy to the valley-splitting in TMDCs. Your task will be the design and exploration of the optical properties of these exciting new materials.

• Charge Transport in Multi-functional Layered Hybrid Perovskites

Materials that can do two things at once are rare, but have advantages for applications, e.g. light-absorbing electrode materials in photobatteries.  The hybrid nature of layered perovskites allows us to introduce organic molecules into the crystal to add function not possible with the host perovskite.  Working with chemistry department at TUM (group of Gregor Kieslich) we have designed a range of organic compounds with exciting functions (magnetic, conductive, etc), which will allow us to explore new materials. Your task would be the fabrication of high-quality crystals and thin films, for which you will explore their novel transport properties with our state-of-the art rigs.

In your Master’s project in our group, you will have the chance to gain hands-on experience in the solution-/vapor-based synthesis of novel functional materials, a range of state-of-the art spectroscopic, optoelectronic and diffraction tools, as well as detailed understanding of the physics of functional semiconductors.  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

• Bachelor’s Thesis Physics
• Master’s Thesis Condensed Matter Physics

Supervisor: Felix Deschler

Ultrafast Optical Spectroscopy of Material Dynamics

The Deschler group at the Walter Schottky Institute of TU Munich invites applications for 

Master Projects on Ultrafast Spectroscopy of 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. Its research focuses on the ultrafast dynamics of functional materials and their applications for energy applications. 

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

Your project

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

• Femtosecond Luminescence Spectroscopy 

Maximizing luminescence yields requires fundamental insights how the luminescence is created. The emergence of photon emission after excitation of the material provides here fundamental information about the interactions of electrons and holes, as well as the nature of the band structure of the material. In this project you will develop a highly-sensitive femtosecond luminescence setup to explore radiative recombination in a previously inaccessible regime in a range of seminal semiconductors, such as hybrid perovskites and 2D materials.

• Time-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

Supervisor: Felix Deschler

Current and Finished Theses in the Group