Speaker : Dr. Lu Wanheng Affiliation : National University of Singapore Region : Asia Year : 2022 Language : English Diverse interactions between light and materials are the foundation but also the inspiration for humans’ life and activities, for example, the photosynthesis provides essentials for human being, and understandings of the involved processes like the light absorption, charge generation and exchange, etc., are inspiring the technology development in light harvesting and light-energy conversion. Kelvin Probe Force Microscopy (KPFM), one variety of scanning Probe Microscopies (SPM), based on detecting the electrostatic force between materials and the ultra-tiny tip, is an effective tool to fully reveal those light-involved processes at a micro/nanoscale. Here, we will talk about the principle of KPFM, combination KPFM with light system, as well as applications in probing the light absorption, photothermal, photoexcitation processes in various nanomaterials devised for solar light harvesting and conversion.
