【Date and Time】14-November-2024 2pm (Beijing time)

【Venue】Room 526

【Host】Hongqi Xu ( Peking Univ. & BAQIS)

【Title】Ultrafast Spectroscopy of Electronic Dynamics in Nanostructures and Strong Light-Matter Interaction

【Speaker】 

Tonu Pullerits obtained his PhD from the Institute of Physics at Tartu University, Estonia, in 1991. He pursued his postdoc work in Free University of Amsterdam (1992–1993) and Umea University (1993–1994). He moved to Lund University 1994 where he is currently full professor of chemical physics. He is a coordinator of the Lund University Profile Area Light and Materials. He is an elected member of the Royal Swedish Academy of Sciences since 2016. His research interests include energy transport in molecular systems, ultrafast charge carrier dynamics and photophysics in photovoltaic materials, and coherent multidimensional spectroscopy.

【Abstract】

We apply a set of ultrafast spectroscopies to investigate details of charge carrier dynamics in various nanostructures. We present results on hot electron cooling in 2D perovskites and quantum dots, plexiton dynamics in hybrid states of strongly coupled plasmonic metal nanoparticles and molecular aggregates. Finally, we summarize our recent results on strong light-matter interaction in microcavities. The results will be presented in context of envisioned future applications.

Keywords: coherent spectroscopy, perovskite nanostructures, hot carrier cooling, plexitons.