| AVS 60th International Symposium and Exhibition | |
| Energy Frontiers Focus Topic | Monday Sessions |
| Session EN+AS+NS+SS-MoA |
| Session: | Interfacial Challenges in Nanostructured Solar Cells |
| Presenter: | G. Dukovic, University of Colorado, Boulder |
| Correspondent: | Click to Email |
Semiconductor nanocrystals are remarkable light harvesters with readily tunable absorption spectra and surface chemistry. They have recently been coupled with redox catalysts to drive photochemical multi-electron transfer reactions such as generation of H2. We use ultrafast laser spectroscopy to characterize the excited state dynamics of nanocrystal-catalyst hybrids and measure the rates and efficiencies of charge transfer processes necessary for photochemical fuel generation. This presentation will focus on the relationships between charge transfer dynamics and overall photochemical reactivity. The design principles derived from the insights provided by these experiments will be described.