Cargando…
Intramolecular Triplet–Triplet Annihilation Photon Upconversion in Diffusionally Restricted Anthracene Polymer
[Image: see text] In the strive to develop triplet–triplet annihilation photon upconversion (TTA-UC) to become applicable in a viable technology, there is a need to develop upconversion systems that can function well in solid states. One method to achieve efficient solid-state TTA-UC systems is to r...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical
Society
2021
|
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8279549/ https://www.ncbi.nlm.nih.gov/pubmed/34081465 http://dx.doi.org/10.1021/acs.jpcb.1c02856 |
_version_ | 1783722480835231744 |
---|---|
author | Edhborg, Fredrik Bildirir, Hakan Bharmoria, Pankaj Moth-Poulsen, Kasper Albinsson, Bo |
author_facet | Edhborg, Fredrik Bildirir, Hakan Bharmoria, Pankaj Moth-Poulsen, Kasper Albinsson, Bo |
author_sort | Edhborg, Fredrik |
collection | PubMed |
description | [Image: see text] In the strive to develop triplet–triplet annihilation photon upconversion (TTA-UC) to become applicable in a viable technology, there is a need to develop upconversion systems that can function well in solid states. One method to achieve efficient solid-state TTA-UC systems is to replace the intermolecular energy-transfer steps with the corresponding intramolecular transfers, thereby minimizing loss channels involved in chromophore diffusion. Herein, we present a study of photon upconversion by TTA internally within a polymeric annihilator network (iTTA). By the design of the annihilator polymer and the choice of experiment conditions, we isolate upconversion emission governed by iTTA within the annihilator particles and eliminate possible external TTA between separate annihilator particles (xTTA). This approach leads to mechanistic insights into the process of iTTA and makes it possible to explore the upconversion kinetics and performance of a polymeric annihilator. In comparison to a monomeric upconversion system that only functions using xTTA, we show that upconversion in a polymeric annihilator is efficient also at extremely low annihilator concentrations and that the overall kinetics is significantly faster. The presented results show that intramolecular photon upconversion is a versatile concept for the development of highly efficient solid-state photon upconversion materials. |
format | Online Article Text |
id | pubmed-8279549 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical
Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-82795492021-07-15 Intramolecular Triplet–Triplet Annihilation Photon Upconversion in Diffusionally Restricted Anthracene Polymer Edhborg, Fredrik Bildirir, Hakan Bharmoria, Pankaj Moth-Poulsen, Kasper Albinsson, Bo J Phys Chem B [Image: see text] In the strive to develop triplet–triplet annihilation photon upconversion (TTA-UC) to become applicable in a viable technology, there is a need to develop upconversion systems that can function well in solid states. One method to achieve efficient solid-state TTA-UC systems is to replace the intermolecular energy-transfer steps with the corresponding intramolecular transfers, thereby minimizing loss channels involved in chromophore diffusion. Herein, we present a study of photon upconversion by TTA internally within a polymeric annihilator network (iTTA). By the design of the annihilator polymer and the choice of experiment conditions, we isolate upconversion emission governed by iTTA within the annihilator particles and eliminate possible external TTA between separate annihilator particles (xTTA). This approach leads to mechanistic insights into the process of iTTA and makes it possible to explore the upconversion kinetics and performance of a polymeric annihilator. In comparison to a monomeric upconversion system that only functions using xTTA, we show that upconversion in a polymeric annihilator is efficient also at extremely low annihilator concentrations and that the overall kinetics is significantly faster. The presented results show that intramolecular photon upconversion is a versatile concept for the development of highly efficient solid-state photon upconversion materials. American Chemical Society 2021-06-03 2021-06-17 /pmc/articles/PMC8279549/ /pubmed/34081465 http://dx.doi.org/10.1021/acs.jpcb.1c02856 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Edhborg, Fredrik Bildirir, Hakan Bharmoria, Pankaj Moth-Poulsen, Kasper Albinsson, Bo Intramolecular Triplet–Triplet Annihilation Photon Upconversion in Diffusionally Restricted Anthracene Polymer |
title | Intramolecular Triplet–Triplet Annihilation
Photon Upconversion in Diffusionally Restricted Anthracene Polymer |
title_full | Intramolecular Triplet–Triplet Annihilation
Photon Upconversion in Diffusionally Restricted Anthracene Polymer |
title_fullStr | Intramolecular Triplet–Triplet Annihilation
Photon Upconversion in Diffusionally Restricted Anthracene Polymer |
title_full_unstemmed | Intramolecular Triplet–Triplet Annihilation
Photon Upconversion in Diffusionally Restricted Anthracene Polymer |
title_short | Intramolecular Triplet–Triplet Annihilation
Photon Upconversion in Diffusionally Restricted Anthracene Polymer |
title_sort | intramolecular triplet–triplet annihilation
photon upconversion in diffusionally restricted anthracene polymer |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8279549/ https://www.ncbi.nlm.nih.gov/pubmed/34081465 http://dx.doi.org/10.1021/acs.jpcb.1c02856 |
work_keys_str_mv | AT edhborgfredrik intramoleculartriplettripletannihilationphotonupconversionindiffusionallyrestrictedanthracenepolymer AT bildirirhakan intramoleculartriplettripletannihilationphotonupconversionindiffusionallyrestrictedanthracenepolymer AT bharmoriapankaj intramoleculartriplettripletannihilationphotonupconversionindiffusionallyrestrictedanthracenepolymer AT mothpoulsenkasper intramoleculartriplettripletannihilationphotonupconversionindiffusionallyrestrictedanthracenepolymer AT albinssonbo intramoleculartriplettripletannihilationphotonupconversionindiffusionallyrestrictedanthracenepolymer |