Cargando…

Singlet fission as a polarized spin generator for dynamic nuclear polarization

Singlet fission (SF), converting a singlet excited state into a spin-correlated triplet-pair state, is an effective way to generate a spin quintet state in organic materials. Although its application to photovoltaics as an exciton multiplier has been extensively studied, the use of its unique spin d...

Descripción completa

Detalles Bibliográficos
Autores principales: Kawashima, Yusuke, Hamachi, Tomoyuki, Yamauchi, Akio, Nishimura, Koki, Nakashima, Yuma, Fujiwara, Saiya, Kimizuka, Nobuo, Ryu, Tomohiro, Tamura, Tetsu, Saigo, Masaki, Onda, Ken, Sato, Shunsuke, Kobori, Yasuhiro, Tateishi, Kenichiro, Uesaka, Tomohiro, Watanabe, Go, Miyata, Kiyoshi, Yanai, Nobuhiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9977948/
https://www.ncbi.nlm.nih.gov/pubmed/36859419
http://dx.doi.org/10.1038/s41467-023-36698-4
_version_ 1784899404825624576
author Kawashima, Yusuke
Hamachi, Tomoyuki
Yamauchi, Akio
Nishimura, Koki
Nakashima, Yuma
Fujiwara, Saiya
Kimizuka, Nobuo
Ryu, Tomohiro
Tamura, Tetsu
Saigo, Masaki
Onda, Ken
Sato, Shunsuke
Kobori, Yasuhiro
Tateishi, Kenichiro
Uesaka, Tomohiro
Watanabe, Go
Miyata, Kiyoshi
Yanai, Nobuhiro
author_facet Kawashima, Yusuke
Hamachi, Tomoyuki
Yamauchi, Akio
Nishimura, Koki
Nakashima, Yuma
Fujiwara, Saiya
Kimizuka, Nobuo
Ryu, Tomohiro
Tamura, Tetsu
Saigo, Masaki
Onda, Ken
Sato, Shunsuke
Kobori, Yasuhiro
Tateishi, Kenichiro
Uesaka, Tomohiro
Watanabe, Go
Miyata, Kiyoshi
Yanai, Nobuhiro
author_sort Kawashima, Yusuke
collection PubMed
description Singlet fission (SF), converting a singlet excited state into a spin-correlated triplet-pair state, is an effective way to generate a spin quintet state in organic materials. Although its application to photovoltaics as an exciton multiplier has been extensively studied, the use of its unique spin degree of freedom has been largely unexplored. Here, we demonstrate that the spin polarization of the quintet multiexcitons generated by SF improves the sensitivity of magnetic resonance of water molecules through dynamic nuclear polarization (DNP). We form supramolecular assemblies of a few pentacene chromophores and use SF-born quintet spins to achieve DNP of water-glycerol, the most basic biological matrix, as evidenced by the dependence of nuclear polarization enhancement on magnetic field and microwave power. Our demonstration opens a use of SF as a polarized spin generator in bio-quantum technology.
format Online
Article
Text
id pubmed-9977948
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-99779482023-03-03 Singlet fission as a polarized spin generator for dynamic nuclear polarization Kawashima, Yusuke Hamachi, Tomoyuki Yamauchi, Akio Nishimura, Koki Nakashima, Yuma Fujiwara, Saiya Kimizuka, Nobuo Ryu, Tomohiro Tamura, Tetsu Saigo, Masaki Onda, Ken Sato, Shunsuke Kobori, Yasuhiro Tateishi, Kenichiro Uesaka, Tomohiro Watanabe, Go Miyata, Kiyoshi Yanai, Nobuhiro Nat Commun Article Singlet fission (SF), converting a singlet excited state into a spin-correlated triplet-pair state, is an effective way to generate a spin quintet state in organic materials. Although its application to photovoltaics as an exciton multiplier has been extensively studied, the use of its unique spin degree of freedom has been largely unexplored. Here, we demonstrate that the spin polarization of the quintet multiexcitons generated by SF improves the sensitivity of magnetic resonance of water molecules through dynamic nuclear polarization (DNP). We form supramolecular assemblies of a few pentacene chromophores and use SF-born quintet spins to achieve DNP of water-glycerol, the most basic biological matrix, as evidenced by the dependence of nuclear polarization enhancement on magnetic field and microwave power. Our demonstration opens a use of SF as a polarized spin generator in bio-quantum technology. Nature Publishing Group UK 2023-03-01 /pmc/articles/PMC9977948/ /pubmed/36859419 http://dx.doi.org/10.1038/s41467-023-36698-4 Text en © The Author(s) 2023 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Kawashima, Yusuke
Hamachi, Tomoyuki
Yamauchi, Akio
Nishimura, Koki
Nakashima, Yuma
Fujiwara, Saiya
Kimizuka, Nobuo
Ryu, Tomohiro
Tamura, Tetsu
Saigo, Masaki
Onda, Ken
Sato, Shunsuke
Kobori, Yasuhiro
Tateishi, Kenichiro
Uesaka, Tomohiro
Watanabe, Go
Miyata, Kiyoshi
Yanai, Nobuhiro
Singlet fission as a polarized spin generator for dynamic nuclear polarization
title Singlet fission as a polarized spin generator for dynamic nuclear polarization
title_full Singlet fission as a polarized spin generator for dynamic nuclear polarization
title_fullStr Singlet fission as a polarized spin generator for dynamic nuclear polarization
title_full_unstemmed Singlet fission as a polarized spin generator for dynamic nuclear polarization
title_short Singlet fission as a polarized spin generator for dynamic nuclear polarization
title_sort singlet fission as a polarized spin generator for dynamic nuclear polarization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9977948/
https://www.ncbi.nlm.nih.gov/pubmed/36859419
http://dx.doi.org/10.1038/s41467-023-36698-4
work_keys_str_mv AT kawashimayusuke singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT hamachitomoyuki singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT yamauchiakio singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT nishimurakoki singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT nakashimayuma singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT fujiwarasaiya singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT kimizukanobuo singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT ryutomohiro singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT tamuratetsu singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT saigomasaki singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT ondaken singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT satoshunsuke singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT koboriyasuhiro singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT tateishikenichiro singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT uesakatomohiro singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT watanabego singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT miyatakiyoshi singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization
AT yanainobuhiro singletfissionasapolarizedspingeneratorfordynamicnuclearpolarization