Nature Communications (Nov 2021)
Spontaneous exciton dissociation enables spin state interconversion in delayed fluorescence organic semiconductors
- Alexander J. Gillett,
- Claire Tonnelé,
- Giacomo Londi,
- Gaetano Ricci,
- Manon Catherin,
- Darcy M. L. Unson,
- David Casanova,
- Frédéric Castet,
- Yoann Olivier,
- Weimin M. Chen,
- Elena Zaborova,
- Emrys W. Evans,
- Bluebell H. Drummond,
- Patrick J. Conaghan,
- Lin-Song Cui,
- Neil C. Greenham,
- Yuttapoom Puttisong,
- Frédéric Fages,
- David Beljonne,
- Richard H. Friend
Affiliations
- Alexander J. Gillett
- Cavendish Laboratory, University of Cambridge
- Claire Tonnelé
- Donostia International Physics Centre (DIPC)
- Giacomo Londi
- Laboratory for Chemistry of Novel Materials, Université de Mons
- Gaetano Ricci
- Unité de Chimie Physique Théorique et Structurale & Laboratoire de Physique du Solide, Namur Institute of Structured Matter, Université de Namur
- Manon Catherin
- Aix Marseille Univ, CNRS, CINaM UMR 7325, AMUtech, Campus de Luminy
- Darcy M. L. Unson
- Cavendish Laboratory, University of Cambridge
- David Casanova
- Donostia International Physics Centre (DIPC)
- Frédéric Castet
- Institut des Sciences Moléculaires, Université de Bordeaux
- Yoann Olivier
- Unité de Chimie Physique Théorique et Structurale & Laboratoire de Physique du Solide, Namur Institute of Structured Matter, Université de Namur
- Weimin M. Chen
- Department of Physics, Chemistry and Biology (IFM) Linköping University
- Elena Zaborova
- Aix Marseille Univ, CNRS, CINaM UMR 7325, AMUtech, Campus de Luminy
- Emrys W. Evans
- Cavendish Laboratory, University of Cambridge
- Bluebell H. Drummond
- Cavendish Laboratory, University of Cambridge
- Patrick J. Conaghan
- Cavendish Laboratory, University of Cambridge
- Lin-Song Cui
- Cavendish Laboratory, University of Cambridge
- Neil C. Greenham
- Cavendish Laboratory, University of Cambridge
- Yuttapoom Puttisong
- Department of Physics, Chemistry and Biology (IFM) Linköping University
- Frédéric Fages
- Aix Marseille Univ, CNRS, CINaM UMR 7325, AMUtech, Campus de Luminy
- David Beljonne
- Laboratory for Chemistry of Novel Materials, Université de Mons
- Richard H. Friend
- Cavendish Laboratory, University of Cambridge
- DOI
- https://doi.org/10.1038/s41467-021-26689-8
- Journal volume & issue
-
Vol. 12,
no. 1
pp. 1 – 10
Abstract
A low singlet-triplet energy gap, necessary for delayed fluorescence organic semiconductors, results in a small radiative rate that limits performance in OLEDs. Here, the authors show that it is possible to reconcile these conflicting requirements in materials that can access both high oscillator strength intramolecular excitations and intermolecular charge transfer states.
