Host: Prof. Jinbo Peng

Venue: TDLI Meeting Room N601

Tencent meeting link:  https://meeting.tencent.com/dm/O7Wo5LMuezEl   Meeting ID:   681943284, no password

Abstract:

Interplay among different degrees of freedom (e.g., electrons, phonons and spins, plasmons) is of paramount importance in understanding and optimizing the properties of quantum materials. The synthesis of two-dimensional (2D) materials such as graphene and transition metal dichalcogenides has opened up new venues for designing novel optoelectrical and photovoltaic devices. Photoexcitation induced dynamics in two-dimensional materials (e.g., interfacial charger dynamics and photoinduced phase transition) has been a hot topic in condensed physics and material science. In this talk, I will introduce the photoexcitation induced dynamics and phase transitions in quantum materials, including phase transitions in charge density waves materials and nonlinear optics in layered materials using density functional theory and time-dependent density functional theory. These studies would make a contribution to the future application of low-dimensional materials and quantum systems in optoelectrical, photovoltaic and photocatalysis etc.

Biography:

Jin Zhang joined National Center for Nanoscience and Technology in Apr. 2024. Before that, he stayed at Max Planck Institute (Hamburg) for about 5 years supported by Prof. Angel Rubio. His research focuses on the electronic structure and photoexcited ultrafast dynamics in photodetectors, photovoltaic devices, and nano electronic devices. So far, he has more than 50 peer-reviewed publications in high-impact journals. His research interests include: 1) photoinduced charge dynamics in energy application, 2) photoinduced magnetic dynamics in quantum materials, high harmonic generation in solid-state materials, 3) theory of DFT, TDDFT and DFPT. He intends to delve into nano-optoelectronics and advance ultrafast dynamics methods for probing the electronic structure and light-matter interactions. This undertaking promises to yield valuable insights crucial for propelling the fields of nano-optoelectronics and information technology.