Deschler group

Resolving Local Electronic-Ionic Dynamics in Optoelectronic Materials for Physical Computing

The dynamics and interactions between charges and ionic species are key processes in energy materials. A fundamental understanding of these mechanisms, and the underlying material properties, is essential for optimal performance of applications. In this project, we will explore the local material properties, and correlated charge-ion dynamics, enabling transient optoelectronic memory in materials for physical computing. Insights into local ultrafast dynamics of charge-ion dynamics will be gained with phase-sensitive spectroscopic techniques for resolving signals on length scales within the diffraction limit (using optical microscopy) and below the diffraction limit (using near-field microscopy) to track charge-ion dynamics in real time and in-situ Selected planned materials for investigations include hybrid perovskites, organic semiconductors and high-entropy materials.

This project requires a background in physical chemistry, materials science or physics. Experience with concepts of physical computing is of benefit. It involves solution-based material processing, device fabrication, electrical and optical spectroscopy, and computing performance benchmarking.

Optical table in operation

Main Advisor: Prof. Dr. Felix Deschler
Location/Institute: Heidelberg University, Institute for Physical Chemistry, Im Neuenheimer Feld 229, Heidelberg