Tailoring ultrafast singlet fission by structural modification of phenazinothiadiazoles

N. Alagna; J. Han; J. Herz; J. L. Perez Lustres; S. Hahn; S. Koser; Florian L. Geyer; Sebastian Hahn; U. Bunz; A. Dreuw; T. Buckup; M. Motzkus

doi:10.1051/epjconf/201920509013

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Proceedings

Open Access

EPJ Web of Conferences 205, 09013 (2019)
https://doi.org/10.1051/epjconf/201920509013

Tailoring ultrafast singlet fission by structural modification of phenazinothiadiazoles

N. Alagna¹, J. Han³, J. Herz¹, J. L. Perez Lustres¹, S. Hahn², S. Koser², Florian L. Geyer², Sebastian Hahn², U. Bunz², A. Dreuw³, T. Buckup¹ and M. Motzkus¹

¹ Physikalisch-Chemisches Institut, Ruprecht-Karls Universität Heidelberg, D-69210, Heidelberg, Germany
² Organisch-Chemisches Institut, Ruprecht-Karls Universität Heidelberg, D-69210, Heidelberg, Germany
³ Institut für Wissenschaftliches Rechnen, Ruprecht-Karls Universität Heidelberg, D-69210, Heidelberg, Germany

Published online: 16 April 2019

Abstract

Ultrafast transient absorption and quantum chemistry calculations are combined to demonstrate singlet fission in newly functionalized TIPS-Tetracenes. The coupling strength (but not the energy gap) between Si and ’(TT) states gauges singlet fission efficiency and rate.

© 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.