Photosynthesis on the Ultrafast Time Scale within the Confinements of Quantum Nanostructured Photosystems
Abstract
Fundamental information on the behavior of excited chlorophyll molecules packed within the confinements of nanosized photosystems I and II, following absorption of light, is presented. Using a 100 femtosecond laser with nanojoule (nJ) pulse energy and a one picosecond streak camera, we observed the light emitted from the nanostructured photosystems without oscillations or hops. The fluorescent exponential decay profiles and high efficiency within the nanostructure suggest that light coherently drains out as a unit. This implies that "quantumness" is linked to quantum confinement on the nano scale.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 25, 2021
- Source ID
- 10.1111/php.13392
Entities
People
- Laura A Sordillo
- R. R. Alfano
- Yury Budansky
Organizations
- Army Research Office
- City College of New York