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Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals

At the organic–inorganic interface of nanocrystals, electron‐phonon coupling plays an important but intricate role in determining the diverse properties of nanomaterials. Here, it is reported that highly doping of Yb(3+) ions within the nanocrystal host can form an energy‐migration network. The netw...

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Detalles Bibliográficos
Autores principales: Mei, Sheng, Zhou, Jiajia, Sun, Hong‐Tao, Cai, Yangjian, Sun, Ling‐Dong, Jin, Dayong, Yan, Chun‐Hua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7967042/
https://www.ncbi.nlm.nih.gov/pubmed/33747733
http://dx.doi.org/10.1002/advs.202003325
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author Mei, Sheng
Zhou, Jiajia
Sun, Hong‐Tao
Cai, Yangjian
Sun, Ling‐Dong
Jin, Dayong
Yan, Chun‐Hua
author_facet Mei, Sheng
Zhou, Jiajia
Sun, Hong‐Tao
Cai, Yangjian
Sun, Ling‐Dong
Jin, Dayong
Yan, Chun‐Hua
author_sort Mei, Sheng
collection PubMed
description At the organic–inorganic interface of nanocrystals, electron‐phonon coupling plays an important but intricate role in determining the diverse properties of nanomaterials. Here, it is reported that highly doping of Yb(3+) ions within the nanocrystal host can form an energy‐migration network. The networking state Yb(3+) shows both distinct Stark splitting peak ratios and lifetime dynamics, which allows quantitative investigations of quenching and thermal activation of luminescence, as the high‐dimensional spectroscopy signatures can be correlated to the attaching and de‐attaching status of surface molecules. By in‐situ surface characterizations, it is proved that the Yb‐O coordination associated with coordinated water molecules has significantly contributed to this reversible effect. Moreover, using this approach, the prime quencher —OH can be switched to —CH in the wet‐chemistry annealing process, resulting in the electron‐phonon coupling probability change. This study provides the molecular level insights and dynamics of the surface dark layer of luminescent nanocrystals.
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spelling pubmed-79670422021-03-19 Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals Mei, Sheng Zhou, Jiajia Sun, Hong‐Tao Cai, Yangjian Sun, Ling‐Dong Jin, Dayong Yan, Chun‐Hua Adv Sci (Weinh) Full Papers At the organic–inorganic interface of nanocrystals, electron‐phonon coupling plays an important but intricate role in determining the diverse properties of nanomaterials. Here, it is reported that highly doping of Yb(3+) ions within the nanocrystal host can form an energy‐migration network. The networking state Yb(3+) shows both distinct Stark splitting peak ratios and lifetime dynamics, which allows quantitative investigations of quenching and thermal activation of luminescence, as the high‐dimensional spectroscopy signatures can be correlated to the attaching and de‐attaching status of surface molecules. By in‐situ surface characterizations, it is proved that the Yb‐O coordination associated with coordinated water molecules has significantly contributed to this reversible effect. Moreover, using this approach, the prime quencher —OH can be switched to —CH in the wet‐chemistry annealing process, resulting in the electron‐phonon coupling probability change. This study provides the molecular level insights and dynamics of the surface dark layer of luminescent nanocrystals. John Wiley and Sons Inc. 2021-01-29 /pmc/articles/PMC7967042/ /pubmed/33747733 http://dx.doi.org/10.1002/advs.202003325 Text en © 2021 The Authors. Advanced Science published by Wiley‐VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Mei, Sheng
Zhou, Jiajia
Sun, Hong‐Tao
Cai, Yangjian
Sun, Ling‐Dong
Jin, Dayong
Yan, Chun‐Hua
Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals
title Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals
title_full Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals
title_fullStr Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals
title_full_unstemmed Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals
title_short Networking State of Ytterbium Ions Probing the Origin of Luminescence Quenching and Activation in Nanocrystals
title_sort networking state of ytterbium ions probing the origin of luminescence quenching and activation in nanocrystals
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7967042/
https://www.ncbi.nlm.nih.gov/pubmed/33747733
http://dx.doi.org/10.1002/advs.202003325
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