Intense multiphoton upconversion of Yb3+-Tm3+ doped β-NaYF<inf>4</inf> individual nanocrystals by saturation excitation

Zhou, J; Chen, G; Zhu, Y; Huo, L; Mao, W; Zou, D; Sun, X; Wu, E; Zeng, H; Zhang, J; Zhang, L; Qiu, J; Xu, S

Intense multiphoton upconversion of Yb3+-Tm3+ doped β-NaYF<inf>4</inf> individual nanocrystals by saturation excitation

Zhou, J

Chen, G Zhu, Y Huo, L Mao, W Zou, D Sun, X Wu, E Zeng, H Zhang, J Zhang, L Qiu, J Xu, S

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Publication Type:: Journal Article
Citation:: Journal of Materials Chemistry C, 2015, 3 (2), pp. 364 - 369
Issue Date:: 2015-01-14

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Field	Value	Language
dc.contributor.author	Zhou, J https://orcid.org/0000-0002-0605-5745	en_US
dc.contributor.author	Chen, G	en_US
dc.contributor.author	Zhu, Y	en_US
dc.contributor.author	Huo, L	en_US
dc.contributor.author	Mao, W	en_US
dc.contributor.author	Zou, D	en_US
dc.contributor.author	Sun, X	en_US
dc.contributor.author	Wu, E	en_US
dc.contributor.author	Zeng, H	en_US
dc.contributor.author	Zhang, J	en_US
dc.contributor.author	Zhang, L	en_US
dc.contributor.author	Qiu, J	en_US
dc.contributor.author	Xu, S	en_US
dc.date.issued	2015-01-14	en_US
dc.identifier.citation	Journal of Materials Chemistry C, 2015, 3 (2), pp. 364 - 369	en_US
dc.identifier.issn	2050-7534	en_US
dc.identifier.uri	http://hdl.handle.net/10453/116393
dc.description.abstract	© The Royal Society of Chemistry 2015. Saturation excitation of individual nanocrystals represents a powerful strategy to explore unique optical characteristics of luminescent activators. Here we report the intense multiphoton upconversion of β-NaYF4: Yb3+-Tm3+ individual nanocrystals benefiting from the perfect ladder-type electron configuration of Tm3+ under saturation illumination excitation. This leads to a luminescence switching between the emissions from 2-photon upconversion and 4-photon upconversion, which exhibits significantly enhanced luminescence intensity by up to a factor of 70. Such intense multiphoton upconversion may have potential application in super-resolution imaging.	en_US
dc.relation.ispartof	Journal of Materials Chemistry C	en_US
dc.relation.isbasedon	10.1039/c4tc02363c	en_US
dc.title	Intense multiphoton upconversion of Yb<sup>3+</sup>-Tm<sup>3+</sup> doped β-NaYF<inf>4</inf> individual nanocrystals by saturation excitation	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	3	en_US
utslib.for	030302 Nanochemistry and Supramolecular Chemistry	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0912 Materials Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
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/Strength - IBMD - Initiative for Biomedical Devices
utslib.copyright.status	closed_access
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	3	en_US

Abstract:

© The Royal Society of Chemistry 2015. Saturation excitation of individual nanocrystals represents a powerful strategy to explore unique optical characteristics of luminescent activators. Here we report the intense multiphoton upconversion of β-NaYF4: Yb3+-Tm3+ individual nanocrystals benefiting from the perfect ladder-type electron configuration of Tm3+ under saturation illumination excitation. This leads to a luminescence switching between the emissions from 2-photon upconversion and 4-photon upconversion, which exhibits significantly enhanced luminescence intensity by up to a factor of 70. Such intense multiphoton upconversion may have potential application in super-resolution imaging.

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http://hdl.handle.net/10453/116393

Intense multiphoton upconversion of Yb<sup>3+</sup>-Tm<sup>3+</sup> doped β-NaYF<inf>4</inf> individual nanocrystals by saturation excitation