Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies

The endohedral fullerene Y(3)N@C(80) exhibits luminescence with reasonable quantum yield and extraordinary long lifetime. By variable‐temperature steady‐state and time‐resolved luminescence spectroscopy, it is demonstrated that above 60 K the Y(3)N@C(80) exhibits thermally activated delayed fluoresc...

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Autores principales: Zalibera, Michal, Krylov, Denis S., Karagiannis, Dimitrios, Will, Paul‐Anton, Ziegs, Frank, Schiemenz, Sandra, Lubitz, Wolfgang, Reineke, Sebastian, Savitsky, Anton, Popov, Alexey A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751888/
https://www.ncbi.nlm.nih.gov/pubmed/29119650
http://dx.doi.org/10.1002/anie.201710637
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author Zalibera, Michal
Krylov, Denis S.
Karagiannis, Dimitrios
Will, Paul‐Anton
Ziegs, Frank
Schiemenz, Sandra
Lubitz, Wolfgang
Reineke, Sebastian
Savitsky, Anton
Popov, Alexey A.
author_facet Zalibera, Michal
Krylov, Denis S.
Karagiannis, Dimitrios
Will, Paul‐Anton
Ziegs, Frank
Schiemenz, Sandra
Lubitz, Wolfgang
Reineke, Sebastian
Savitsky, Anton
Popov, Alexey A.
author_sort Zalibera, Michal
collection PubMed
description The endohedral fullerene Y(3)N@C(80) exhibits luminescence with reasonable quantum yield and extraordinary long lifetime. By variable‐temperature steady‐state and time‐resolved luminescence spectroscopy, it is demonstrated that above 60 K the Y(3)N@C(80) exhibits thermally activated delayed fluorescence with maximum emission at 120 K and a negligible prompt fluorescence. Below 60 K, a phosphorescence with a lifetime of 192±1 ms is observed. Spin distribution and dynamics in the triplet excited state is investigated with X‐ and W‐band EPR and ENDOR spectroscopies and DFT computations. Finally, electroluminescence of the Y(3)N@C(80)/PFO film is demonstrated opening the possibility for red‐emitting fullerene‐based organic light‐emitting diodes (OLEDs).
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spelling pubmed-57518882018-01-03 Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies Zalibera, Michal Krylov, Denis S. Karagiannis, Dimitrios Will, Paul‐Anton Ziegs, Frank Schiemenz, Sandra Lubitz, Wolfgang Reineke, Sebastian Savitsky, Anton Popov, Alexey A. Angew Chem Int Ed Engl Communications The endohedral fullerene Y(3)N@C(80) exhibits luminescence with reasonable quantum yield and extraordinary long lifetime. By variable‐temperature steady‐state and time‐resolved luminescence spectroscopy, it is demonstrated that above 60 K the Y(3)N@C(80) exhibits thermally activated delayed fluorescence with maximum emission at 120 K and a negligible prompt fluorescence. Below 60 K, a phosphorescence with a lifetime of 192±1 ms is observed. Spin distribution and dynamics in the triplet excited state is investigated with X‐ and W‐band EPR and ENDOR spectroscopies and DFT computations. Finally, electroluminescence of the Y(3)N@C(80)/PFO film is demonstrated opening the possibility for red‐emitting fullerene‐based organic light‐emitting diodes (OLEDs). John Wiley and Sons Inc. 2017-12-08 2018-01-02 /pmc/articles/PMC5751888/ /pubmed/29119650 http://dx.doi.org/10.1002/anie.201710637 Text en © 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial (http://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Communications
Zalibera, Michal
Krylov, Denis S.
Karagiannis, Dimitrios
Will, Paul‐Anton
Ziegs, Frank
Schiemenz, Sandra
Lubitz, Wolfgang
Reineke, Sebastian
Savitsky, Anton
Popov, Alexey A.
Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies
title Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies
title_full Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies
title_fullStr Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies
title_full_unstemmed Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies
title_short Thermally Activated Delayed Fluorescence in a Y(3)N@C(80) Endohedral Fullerene: Time‐Resolved Luminescence and EPR Studies
title_sort thermally activated delayed fluorescence in a y(3)n@c(80) endohedral fullerene: time‐resolved luminescence and epr studies
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5751888/
https://www.ncbi.nlm.nih.gov/pubmed/29119650
http://dx.doi.org/10.1002/anie.201710637
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