Skip to Content


No results


No results


No results

Search Results


No results
Search events using: keywords, sponsors, locations or event type
When / Where
All occurrences of this event have passed.
This listing is displayed for historical purposes.

Presented By: Department of Chemistry

Harnessing energy flow in molecules & nanomaterials: A tale of forbidden transitions, molecular motions, and exotic excitations

Andres Montoya-Castillo (University of Colorado Boulder)

Spectroscopy has the potential to reveal the structure and dynamics of complex materials, ranging from chromophores in solution to molecular aggregates and nanomaterial heterostructures. Yet, disentangling spectral signals and extracting an intuitive picture of how excitations form, move, and exchange energy is one of the deepest and most persistent challenges of physical chemistry. In this talk, I will offer two vignettes on our work developing and applying approaches to predict and understand spectral features in molecular and nanomaterial systems. In the molecular world, I will show how our recent advances in condensed phase spectroscopy enable us to decipher a long-standing puzzle in porphyrin photophysics: why and how do the Q bands involved in energy transfer in photosynthesis and artificial energy conversion split? In the nanomaterial world, I will highlight how we have been able to demonstrate how the unusual photophysics of atomically thin 2D materials enables hot carrier extraction for photocatalysis. Then, I will illustrate how addressing the challenge of hot carrier extraction enabled us to develop a simple scheme to disentangle the signals of exotic quasiparticles that explain the tunability of the optical behavior of these materials as a function of potential, laser fluence, and time.

Explore Similar Events

  •  Loading Similar Events...

Back to Main Content