Ultrabroadband two-dimensional electronic spectroscopy reveals energy flow pathways in LHCII across the visible spectrum

• Main Authors: Son, Minjung (Author), Pinnola, Alberta (Author), Bassi, Roberto (Author), Schlau-Cohen, Gabriela S. (Author)
• Format: Article
• Language: English
• Published: EDP Sciences, 2021-11-01T17:34:15Z.
• Subjects: Article
• Online Access: Get fulltext

<jats:p>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 S<jats:sub>2</jats:sub> energy levels of carotenoids, including ultrafast carotenoid-to-chlorophyll energy transfer on 90-150 fs timescales.</jats:p>