Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers

A series of poly(phenylene-vinylene)-based copolymers are synthesized using the Gilch method incorporating monomers with sterically bulky sidechains. The photochemical upconversion performance of these polymers as emitters are investigated using a palladium tetraphenyltetrabenzoporphyrin triplet sen...

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Autores principales: O’shea, Riley, Kendrick, William J., Gao, Can, Owyong, Tze Cin, White, Jonathan M., Ghiggino, Kenneth P., Wong, Wallace W. H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8486830/
https://www.ncbi.nlm.nih.gov/pubmed/34599257
http://dx.doi.org/10.1038/s41598-021-99179-y
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author O’shea, Riley
Kendrick, William J.
Gao, Can
Owyong, Tze Cin
White, Jonathan M.
Ghiggino, Kenneth P.
Wong, Wallace W. H.
author_facet O’shea, Riley
Kendrick, William J.
Gao, Can
Owyong, Tze Cin
White, Jonathan M.
Ghiggino, Kenneth P.
Wong, Wallace W. H.
author_sort O’shea, Riley
collection PubMed
description A series of poly(phenylene-vinylene)-based copolymers are synthesized using the Gilch method incorporating monomers with sterically bulky sidechains. The photochemical upconversion performance of these polymers as emitters are investigated using a palladium tetraphenyltetrabenzoporphyrin triplet sensitizer and MEH-PPV as reference. Increased incorporation of sterically bulky monomers leads to a reduction in the upconversion efficiency despite improved photoluminescence quantum yield. A phosphorescence quenching study indicates issues with the energy transfer process between the triplet sensitizer and the copolymers. The best performance with 0.18% upconversion quantum yield is obtained for the copolymer containing 10% monomer with bulky sidechains.
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spelling pubmed-84868302021-10-05 Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers O’shea, Riley Kendrick, William J. Gao, Can Owyong, Tze Cin White, Jonathan M. Ghiggino, Kenneth P. Wong, Wallace W. H. Sci Rep Article A series of poly(phenylene-vinylene)-based copolymers are synthesized using the Gilch method incorporating monomers with sterically bulky sidechains. The photochemical upconversion performance of these polymers as emitters are investigated using a palladium tetraphenyltetrabenzoporphyrin triplet sensitizer and MEH-PPV as reference. Increased incorporation of sterically bulky monomers leads to a reduction in the upconversion efficiency despite improved photoluminescence quantum yield. A phosphorescence quenching study indicates issues with the energy transfer process between the triplet sensitizer and the copolymers. The best performance with 0.18% upconversion quantum yield is obtained for the copolymer containing 10% monomer with bulky sidechains. Nature Publishing Group UK 2021-10-01 /pmc/articles/PMC8486830/ /pubmed/34599257 http://dx.doi.org/10.1038/s41598-021-99179-y Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
O’shea, Riley
Kendrick, William J.
Gao, Can
Owyong, Tze Cin
White, Jonathan M.
Ghiggino, Kenneth P.
Wong, Wallace W. H.
Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers
title Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers
title_full Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers
title_fullStr Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers
title_full_unstemmed Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers
title_short Revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers
title_sort revealing the influence of steric bulk on the triplet–triplet annihilation upconversion performance of conjugated polymers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8486830/
https://www.ncbi.nlm.nih.gov/pubmed/34599257
http://dx.doi.org/10.1038/s41598-021-99179-y
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