Research in the Wustholz Group
Uncovering the optical and structural properties of chromophores in environments that are inherently complex for applications to solar energy conversion, art conservation, and super-resolution imaging.
Electron transfer (ET) processes dictate the efficiency of materials and devices that are used to harness solar energy. We investigate the ET kinetics in organic-dye-sensitized systems for solar energy conversion. By employing single-molecule spectroscopy (SMS), we can probe the full distribution of ET behavior occurring at the heterogeneous dye-semiconductor interface. These studies are supported by robust statistical analysis and computational modeling.
By overcoming the diffraction limit of light, super-resolution imaging can elucidate biological and materials structures and processes at unprecedented resolution. Many super-resolution approaches require single molecules that undergo switching between emissive (on) and non-emissive (off) events. We are developing a new approach to multicolor super-resolution imaging to expand the palette of available probes using both experimental and machine learning approaches.