Chiral nanoclusters for spin hyperpolarization upon photoexcitation ((2) B03)

• Subject Area: Experimental Condensed Matter Physics ; Inorganic Molecular Chemistry - Synthesis and Characterisation
• Term: since 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 514664767

Chiral molecules act as electron spin polarizers upon charge transfer, a property labeled as CISS (chirality-induced spin selectivity). Here we propose a new approach for realizing electronic spin hyperpolarization upon photoexcitation by utilizing (achiral or chiral) bismuth-oxido based nanoclusters (BiON) as light absorbers with tunable optical absorption connected via helical polypeptides to a ferromagnetic substrate. The interplay between chirality, absorption properties, and efficiency of spin hyperpolarization will be investigated using circular dichroism spectroscopy and (magneto-)optical spectroscopies.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 386: HYP*MOL – Hyperpolarization in molecular systems
• Major Instrumentation: CD spectrometer ; CD spectrometer (Basisgerät)
• Instrumentation Group: 3161 Fluoreszenz-Korrelationsspektrometer
• Applicant Institution: Universität Leipzig
• Project Heads: Professor Dr. Michael Mehring; Professorin Dr. Georgeta Salvan