https://doi.org/10.1051/epjconf/201920509034
Ultrabroadband two-dimensional electronic spectroscopy reveals energy flow pathways in LHCII across the visible spectrum
1 Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge 02139, USA
2 Dipartimento di Biotecnologie, Università di Verona, I-37134 Verona, Italy
* Corresponding author: gssc@mit.edu
Published online: 16 April 2019
We utilise ultrabroadband two-dimensional electronic spectroscopy to map out pathways of energy flow in LHCII across the entire visible region. In addition to the well-established, low-lying chlorophyll Qy bands, our results reveal additional pathways of energy relaxation on the higher-lying excited states involving the S2 energy levels of carotenoids, including ultrafast carotenoid-to-chlorophyll energy transfer on 90-150 fs timescales.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
