Article
Dynamic Stark Effect in Two-Dimensional Spectroscopy Revealing Modulation of Ultrafast Charge Separation in Bacterial Reaction Centers by an Inherent Electric Field.
The journal of physical chemistry letters - 17 Jun 2021
Ma Fei, Romero Elisabet, Jones Michael R, Novoderezhkin Vladimir I, Yu Long-Jiang, van Grondelle Rienk
Abstract excerpt
Despite extensive study, mysteries remain regarding the highly efficient ultrafast charge separation processes in photosynthetic reaction centers (RCs). In this work, transient Stark signals were found to be present in ultrafast two-dimensional electronic spectra recorded for purple bacterial RCs at 77 K. These arose from the electric field that is inherent to the intradimer charge-transfer intermediate of the...
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