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Experimental demonstration of photon upconversion via cooperative energy pooling

Photon upconversion is a fundamental interaction of light and matter that has applications in fields ranging from bioimaging to microfabrication. However, all photon upconversion methods demonstrated thus far involve challenging aspects, including requirements of high excitation intensities, degrada...

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Autores principales: Weingarten, Daniel H., LaCount, Michael D., van de Lagemaat, Jao, Rumbles, Garry, Lusk, Mark T., Shaheen, Sean E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355946/
https://www.ncbi.nlm.nih.gov/pubmed/28294129
http://dx.doi.org/10.1038/ncomms14808
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author Weingarten, Daniel H.
LaCount, Michael D.
van de Lagemaat, Jao
Rumbles, Garry
Lusk, Mark T.
Shaheen, Sean E.
author_facet Weingarten, Daniel H.
LaCount, Michael D.
van de Lagemaat, Jao
Rumbles, Garry
Lusk, Mark T.
Shaheen, Sean E.
author_sort Weingarten, Daniel H.
collection PubMed
description Photon upconversion is a fundamental interaction of light and matter that has applications in fields ranging from bioimaging to microfabrication. However, all photon upconversion methods demonstrated thus far involve challenging aspects, including requirements of high excitation intensities, degradation in ambient air, requirements of exotic materials or phases, or involvement of inherent energy loss processes. Here we experimentally demonstrate a mechanism of photon upconversion in a thin film, binary mixture of organic chromophores that provides a pathway to overcoming the aforementioned disadvantages. This singlet-based process, called Cooperative Energy Pooling (CEP), utilizes a sensitizer-acceptor design in which multiple photoexcited sensitizers resonantly and simultaneously transfer their energies to a higher-energy state on a single acceptor. Data from this proof-of-concept implementation is fit by a proposed model of the CEP process. Design guidelines are presented to facilitate further research and development of more optimized CEP systems.
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spelling pubmed-53559462017-04-17 Experimental demonstration of photon upconversion via cooperative energy pooling Weingarten, Daniel H. LaCount, Michael D. van de Lagemaat, Jao Rumbles, Garry Lusk, Mark T. Shaheen, Sean E. Nat Commun Article Photon upconversion is a fundamental interaction of light and matter that has applications in fields ranging from bioimaging to microfabrication. However, all photon upconversion methods demonstrated thus far involve challenging aspects, including requirements of high excitation intensities, degradation in ambient air, requirements of exotic materials or phases, or involvement of inherent energy loss processes. Here we experimentally demonstrate a mechanism of photon upconversion in a thin film, binary mixture of organic chromophores that provides a pathway to overcoming the aforementioned disadvantages. This singlet-based process, called Cooperative Energy Pooling (CEP), utilizes a sensitizer-acceptor design in which multiple photoexcited sensitizers resonantly and simultaneously transfer their energies to a higher-energy state on a single acceptor. Data from this proof-of-concept implementation is fit by a proposed model of the CEP process. Design guidelines are presented to facilitate further research and development of more optimized CEP systems. Nature Publishing Group 2017-03-15 /pmc/articles/PMC5355946/ /pubmed/28294129 http://dx.doi.org/10.1038/ncomms14808 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Weingarten, Daniel H.
LaCount, Michael D.
van de Lagemaat, Jao
Rumbles, Garry
Lusk, Mark T.
Shaheen, Sean E.
Experimental demonstration of photon upconversion via cooperative energy pooling
title Experimental demonstration of photon upconversion via cooperative energy pooling
title_full Experimental demonstration of photon upconversion via cooperative energy pooling
title_fullStr Experimental demonstration of photon upconversion via cooperative energy pooling
title_full_unstemmed Experimental demonstration of photon upconversion via cooperative energy pooling
title_short Experimental demonstration of photon upconversion via cooperative energy pooling
title_sort experimental demonstration of photon upconversion via cooperative energy pooling
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5355946/
https://www.ncbi.nlm.nih.gov/pubmed/28294129
http://dx.doi.org/10.1038/ncomms14808
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