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Multiplicity conversion based on intramolecular triplet-to-singlet energy transfer

Journal article
Authors Alexei Cravcenco
Manuel Hertzog
Chen Ye
M. N. Iqbal
U. Mueller
L. Eriksson
Karl Börjesson
Published in Science Advances
Volume 5
Issue 9
Publication year 2019
Published at Department of Chemistry and Molecular Biology
Language en
Links https://doi.org/10.1126/sciadv.aaw5...
Subject categories Physical Chemistry

Abstract

Copyright © 2019 The Authors. The ability to convert between molecular spin states is of utmost importance in materials chemistry. Förster-type energy transfer is based on dipole-dipole interactions and can therefore theoretically be used to convert between molecular spin states. Here, a molecular dyad that is capable of transferring energy from an excited triplet state to an excited singlet state is presented. The rate of conversion between these states was shown to be 36 times faster than the rate of emission from the isolated triplet state. This dyad provides the first solid proof that Förster-type triplet-to-singlet energy transfer is possible, revealing a method to increase the rate of light extraction from excited triplet states.

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