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A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy
Emitters for organic light‐emitting diodes (OLEDs) based on thermally activated delayed fluorescence (TADF) require small singlet (S(1))‐triplet (T(1)) energy gaps as well as fast intersystem crossing (ISC) transitions. These transitions can be mediated by vibronic mixing with higher excited states...
| Autores principales: | , , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
John Wiley and Sons Inc.
2022
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10098753/ https://www.ncbi.nlm.nih.gov/pubmed/36214291 http://dx.doi.org/10.1002/chem.202202809 |
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| author | Haselbach, Wiebke Kaminski, Jeremy M. Kloeters, Laura N. Müller, Thomas J. J. Weingart, Oliver Marian, Christel M. Gilch, Peter Nogueira de Faria, Barbara E. |
| author_facet | Haselbach, Wiebke Kaminski, Jeremy M. Kloeters, Laura N. Müller, Thomas J. J. Weingart, Oliver Marian, Christel M. Gilch, Peter Nogueira de Faria, Barbara E. |
| author_sort | Haselbach, Wiebke |
| collection | PubMed |
| description | Emitters for organic light‐emitting diodes (OLEDs) based on thermally activated delayed fluorescence (TADF) require small singlet (S(1))‐triplet (T(1)) energy gaps as well as fast intersystem crossing (ISC) transitions. These transitions can be mediated by vibronic mixing with higher excited states S( n ) and T( n ) (n=2, 3, 4, …). For a prototypical TADF emitter consisting of a triarylamine and a dicyanobenzene moiety (TAA‐DCN) it is shown that these higher states can be located energetically by time‐resolved near‐infrared (NIR) spectroscopy. |
| format | Online Article Text |
| id | pubmed-10098753 |
| institution | National Center for Biotechnology Information |
| language | English |
| publishDate | 2022 |
| publisher | John Wiley and Sons Inc. |
| record_format | MEDLINE/PubMed |
| spelling | pubmed-100987532023-04-14 A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy Haselbach, Wiebke Kaminski, Jeremy M. Kloeters, Laura N. Müller, Thomas J. J. Weingart, Oliver Marian, Christel M. Gilch, Peter Nogueira de Faria, Barbara E. Chemistry Research Articles Emitters for organic light‐emitting diodes (OLEDs) based on thermally activated delayed fluorescence (TADF) require small singlet (S(1))‐triplet (T(1)) energy gaps as well as fast intersystem crossing (ISC) transitions. These transitions can be mediated by vibronic mixing with higher excited states S( n ) and T( n ) (n=2, 3, 4, …). For a prototypical TADF emitter consisting of a triarylamine and a dicyanobenzene moiety (TAA‐DCN) it is shown that these higher states can be located energetically by time‐resolved near‐infrared (NIR) spectroscopy. John Wiley and Sons Inc. 2022-11-17 2023-01-09 /pmc/articles/PMC10098753/ /pubmed/36214291 http://dx.doi.org/10.1002/chem.202202809 Text en © 2022 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://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 | Research Articles Haselbach, Wiebke Kaminski, Jeremy M. Kloeters, Laura N. Müller, Thomas J. J. Weingart, Oliver Marian, Christel M. Gilch, Peter Nogueira de Faria, Barbara E. A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy |
| title | A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy |
| title_full | A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy |
| title_fullStr | A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy |
| title_full_unstemmed | A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy |
| title_short | A Thermally Activated Delayed Fluorescence Emitter Investigated by Time‐Resolved Near‐Infrared Spectroscopy |
| title_sort | thermally activated delayed fluorescence emitter investigated by time‐resolved near‐infrared spectroscopy |
| topic | Research Articles |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10098753/ https://www.ncbi.nlm.nih.gov/pubmed/36214291 http://dx.doi.org/10.1002/chem.202202809 |
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