Upconverted excitation energy lock-in for deep-ultraviolet enhancement

Su, Q; Wei, H-L; Wang, S; Chen, C; Ming, G; Su, Y; Wang, H; Chen, Z; Jin, D

Upconverted excitation energy lock-in for deep-ultraviolet enhancement

Su, Q Wei, H-L Wang, S Chen, C

Ming, G Su, Y Wang, H Chen, Z Jin, D

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Publisher:: Research Square Platform LLC
Publication Type:: Journal Article
Citation:: 2022
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Su, Q
dc.contributor.author	Wei, H-L
dc.contributor.author	Wang, S
dc.contributor.author	Chen, C https://orcid.org/0000-0003-4620-7771
dc.contributor.author	Ming, G
dc.contributor.author	Su, Y
dc.contributor.author	Wang, H
dc.contributor.author	Chen, Z
dc.contributor.author	Jin, D https://orcid.org/0000-0003-1046-2666
dc.date.accessioned	2023-04-05T03:23:19Z
dc.date.available	2020-10-05
dc.date.available	2023-04-05T03:23:19Z
dc.date.issued	2022-01-01
dc.identifier.citation	2022
dc.identifier.uri	http://hdl.handle.net/10453/169158
dc.description.abstract	Abstract Photon upconversion of near-infrared (NIR) irradiation into deep-ultraviolet (UV) emission offers many exciting opportunities for drug release in deep tissues, photodynamic therapy, solid-state lasing, energy storage, and photocatalysis. However, NIR-to-deep-UV upconversion remains a daunting challenge due to low quantum efficiency. Here, we report an unusual six-photon upconversion process in Gd3+/Tm3+-codoped nanoparticles comprising a heterogeneous, core-multishell nanostructure. This multishell design efficiently suppresses energy consumption induced by interior energy traps, maximizes cascade sensitizations of the NIR excitation, and promotes upconverted deep-UV emission from high-lying excited states. We released the intense six-photon-upconverted UV emissions at 253 nm under 808-nm excitation. This work provides new insight into mechanistic understanding of the upconversion process within the heterogeneous architecture, while offering exciting opportunities for developing nanoscale deep-UV emitters that can be remotely controlled in deep tissues upon NIR illumination.
dc.language	en
dc.publisher	Research Square Platform LLC
dc.relation.isbasedon	10.21203/rs.3.rs-88155/v1
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Upconverted excitation energy lock-in for deep-ultraviolet enhancement
dc.type	Journal Article
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - IBMD - Initiative for Biomedical Devices
utslib.copyright.status	open_access	*
pubs.consider-herdc	false
dc.date.updated	2023-04-05T03:23:17Z
pubs.publication-status	Published

Abstract:

Abstract Photon upconversion of near-infrared (NIR) irradiation into deep-ultraviolet (UV) emission offers many exciting opportunities for drug release in deep tissues, photodynamic therapy, solid-state lasing, energy storage, and photocatalysis. However, NIR-to-deep-UV upconversion remains a daunting challenge due to low quantum efficiency. Here, we report an unusual six-photon upconversion process in Gd3+/Tm3+-codoped nanoparticles comprising a heterogeneous, core-multishell nanostructure. This multishell design efficiently suppresses energy consumption induced by interior energy traps, maximizes cascade sensitizations of the NIR excitation, and promotes upconverted deep-UV emission from high-lying excited states. We released the intense six-photon-upconverted UV emissions at 253 nm under 808-nm excitation. This work provides new insight into mechanistic understanding of the upconversion process within the heterogeneous architecture, while offering exciting opportunities for developing nanoscale deep-UV emitters that can be remotely controlled in deep tissues upon NIR illumination.

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http://hdl.handle.net/10453/169158