Interfacial charge dynamics
Ultrafast reflection spectroscopy resolves carrier mobility and surface recombination velocity at the buried interfaces of solar cells — the numbers that decide open-circuit voltage.
Research
Three questions we keep asking
How fast does charge move at an interface? How long does a spin remember its direction? And what actually happens in the first picoseconds of a catalytic reaction?
Spin, chirality & light
Chiral perovskites convert light into spin-polarized currents. We quantify how spin-orbit coupling, deformation potential and lattice strain set the spin lifetime.
Photocatalytic mechanisms
In-situ ultrafast spectroscopy follows holes and electrons through water oxidation and H2O2 photosynthesis, telling us which intermediate is worth engineering.
