Abstract
The ability to access the interior of materials through pore engineering creates a new dimension to control their properties. However, most porous materials are mechanically labile, hindering the study of their structures and properties under extreme pressure. Recent discovery of carbon-based porous materials, e.g., COFs and HOFs, exhibit remarkable mechanical stability, making it possible to tune their electronic structures by high pressure. In this talk, I will discuss our recent findings on the optical and electrical properties of COFs and HOFs under gigapascal-level hydrostatic pressure, and how they are modulated by guest molecules anchored in the pores. The nexus of pore engineering and high-pressure science presents new material platforms to examine fundamental chemical and physical processes such as charge transfer and exciton decay.
Bio:
Dr. Hao Yan is an assistant professor of chemistry at UNT. He obtained his Ph.D. in 2010 from Harvard under the advisory of Charles Lieber. He worked at Stanford University and SLAC national laboratory as a postdoctoral researcher and staff scientist before joining the faculty of UNT in fall 2019. His research group works at the intersection of chemistry, materials science and mechanical science, with a broad focus on understanding chemistry in extreme environments.
Yan Lab Research Group:
