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Paper published in Nature Physics

last modified Mar 16, 2015 09:27 PM
Our joint work with the Kukura group in Oxford, on the vibrational dynamics underpinning ultrafast singlet fission, is published in Nature Physics

 

Singlet exciton fission can occur on sub-100fs timescales. On these ultrafast timescales the Born-Oppenheimer approximation breaks down and electronic and nuclear degrees of freedom are intimately coupled. In order to understand the underlying mechanism of fission it is it critical to understand how molecular motion drives electronic transitions. In this work we have for the first time elucidated the underlying vibrational dynamics of the excited state species involved in fission. Our data strongly point to ultrafast fission being mediated by a conical intersection between singlet and triplet-pair manifolds. Read the full paper here

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