A deep understanding of structure-function-dynamics relationships in chemical systems requires methods that can simultaneously measure and correlate spatial, spectral, and temporal properties. Here, we present an approach based on ultrafast hyperspectral imaging that captures such correlated information and then applies statistical analysis to reveal cause and effect relationships.  Specifically, we present single-particle transient absorption microscopy and high-speed impulsive Raman imaging which provide detailed information on both the ground- and excited state structure and dynamics of various chemical targets.  The case of 2D and 3D perovskites is highlighted, where statistical analysis of thousands of distinct spatial locations reveals the effects of grain boundaries and crystal size on carrier energetics and dynamics. In parallel to our measurement efforts, we have developed a high-throughput synthesis approach to enable discovery of new perovskite materials.  These results and methods provide new insights for understanding the structure-property relationship in organic-inorganic photo-materials.

AI-assisted high-throughput ultrafast microscopy and spectroscopy

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.