Speaker
Description
Pull-push chromophores have the donor acceptor structure where it promotes electrons transfer from electron-rich donor group to electron-deficient acceptor group. It can be linked together by chains of different structures and length such as π-conjugated polyene, which are prototypical systems for intramolecular electron transfer processes. Understanding the dynamics of ultrafast charge transfer processes in donor-acceptor molecular systems generally requires a femtosecond temporal resolution to identify the vibrational coupling modes responsible for the electron transfer and to directly visualize the electronic motions. This project aims to develop and improve the ultra-thin liquid flat-jet and a table-top source of soft X-ray pulses providing photons in the water window (280-540 eV) spectral range, and to perform transient soft X-ray absorption experiments to unravel charge transfer processes in simple acceptor-donor molecular systems in solution.
