Institute of Solid State Physics

DE


Solid state physics is the study of how atoms arrange themselves into solids and what properties these solids have. By examining the arrangement of the atoms and considering how electrons move among the atoms, it is possible to understand many macroscopic properties of materials such as their elasticity, electrical conductivity, or optical properties. The Institute of Solid State Physics focuses on organic, molecular, and nanostructured materials. Often detailed studies of the behavior of these materials at surfaces are made. Our research provides the foundation for important advances in technology such as energy efficient lighting, solar cells, electronic books, environmental sensors, and medical sensors.


Tattoo electrodes


Diffusion of organic molecules


Computational Material Science


Metastable Polymorphs

 

Solid State Seminar - Winter 2025/26
Wednesday 07 January 2026      

11:15 - 12:15

Design and Optimization of a Photoelectrochemical Reactor for CO2 Reduction on Cu2O Photocathodes
Maria Fötsch

Abstract: https://tugraz.webex.com/meet/egbert.zojer
Carbon dioxide emissions are a major driver of climate change, creating an urgent need for technologies that enable both CO2 mitigation and sustainable energy storage. Photoelectrochemical (PEC) CO2 reduction offers a promising approach by converting solar energy directly into chemical fuels and value-added products.
This thesis investigates PEC CO2 reduction on Cu2O-based photocathodes with a focus on reactor design, illumination conditions, and hydrodynamic optimization. Cu2O photocathodes electrodeposited on FTO substrates were studied in membrane-separated PEC reactors under controlled bias and UV–visible illumination. The influence of mechanical oscillation on mass transport was systematically analysed, enabling a detailed assessment of its impact on photocurrent density and operational stability. Furthermore, different catalyst coatings and electrical contacting strategies were examined to identify system configurations that minimise losses and enhance overall device performance.

 

 


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