Principal Investigator: Prof. Stefan Hecht, Ph.D.

Located at: Humboldt-Universität zu Berlin

Project C06 explores molecular photochromism within TMDs, graphene, and nanotubes to understand and control the optoelectronic properties of hybrid materials. Using diarylethenes with large FMO shifts it aims to influence excitonic insulator phase transitions in TiSe₂ and TaNiSe₅, while the photoswitching behavior of dihydropyrenes and spiropyrans with large dipole changes will be controlled by strong external electric fields.

Experimental methods: organic synthesis of photoswitches, nuclear magnetic resonance (NMR), mass spectrometry, thermal gravimetric analysis (TGA), absorption (UV/vis)