YuHuang Wang

Abstract:

Defects in solids, including semiconducting single-walled carbon nanotubes, have recently gained significant interest as atomic traps for electrons, excitons, and their quantum coupling. The covalent bonding of organic functional groups to the sp2 carbon lattice creates molecularly tunable sp3 quantum defects with unique properties and potential applications in various fields. Unlike native defects, which usually quench exciton photoluminescence, synthetic defects in single-walled carbon nanotubes fluoresce brightly in the shortwave infrared, producing single photons at room temperature. Known as "organic color centers," these quantum defects have opened up exciting opportunities for researchers in chemistry, physics, materials science, and biomedical engineering. In this talk, I will discuss recent progress in this emerging field of synthetic quantum defects, focusing on the unique properties and potential applications of organic color centers in semiconducting single-walled carbon nanotubes. The talk will highlight the exciting opportunities these quantum defects offer and will provide insight into the rapidly expanding research and applications of these fascinating quantum systems.