Large-scale dewetting assembly of gold nanoparticles for plasmonic enhanced upconversion nanoparticles

Clarke, C; Liu, D; Wang, F; Liu, Y; Chen, C; Ton-That, C; Xu, X; Jin, D

Large-scale dewetting assembly of gold nanoparticles for plasmonic enhanced upconversion nanoparticles

Clarke, C

Liu, D Wang, F

Liu, Y Chen, C

Ton-That, C

Xu, X

Jin, D

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Publication Type:: Journal Article
Citation:: Nanoscale, 2018, 10 (14), pp. 6270 - 6276
Issue Date:: 2018-04-14

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Field	Value	Language
dc.contributor.author	Clarke, C https://orcid.org/0000-0001-7575-696X	en_US
dc.contributor.author	Liu, D	en_US
dc.contributor.author	Wang, F https://orcid.org/0000-0001-7403-3305	en_US
dc.contributor.author	Liu, Y	en_US
dc.contributor.author	Chen, C https://orcid.org/0000-0003-4620-7771	en_US
dc.contributor.author	Ton-That, C https://orcid.org/0000-0003-3276-1739	en_US
dc.contributor.author	Xu, X https://orcid.org/0000-0002-2598-3766	en_US
dc.contributor.author	Jin, D https://orcid.org/0000-0003-1046-2666	en_US
dc.date.issued	2018-04-14	en_US
dc.identifier.citation	Nanoscale, 2018, 10 (14), pp. 6270 - 6276	en_US
dc.identifier.issn	2040-3364	en_US
dc.identifier.uri	http://hdl.handle.net/10453/130635
dc.description.abstract	© 2018 The Royal Society of Chemistry. Plasmonic nanostructures have been broadly investigated for enhancing many photophysical properties of luminescent nanomaterials. Precisely controlling the distance between the plasmonic nanostructure and the luminescent material is challenging particularly for the large-scale production of individual nanoparticles. Here we report an easy and reliable method for the large-scale dewetting of plasmonic gold nanoparticles onto core-shell (CS) upconversion nanoparticles (UCNPs). A commensurate NaYF4 shell with a thickness between 5 nm and 15 nm is used as a tunable spacer to control the distance between the UCNP and the plasmonic gold nanoparticles. The upconversion emission intensity of single gold decorated core-inert shell (Au-CS) UCNPs is quantitatively characterized using a scanning confocal microscope. The results demonstrate the highest feasible enhancement of upconversion emission and a record reduction in lifetime for UCNPs fabricated in this manner. The Au-CS UCNPs are further investigated by simulation and synchrotron near edge X-ray absorption fine structure (NEXAFS) analysis.	en_US
dc.relation.ispartof	Nanoscale	en_US
dc.relation.isbasedon	10.1039/c7nr08979a	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	Large-scale dewetting assembly of gold nanoparticles for plasmonic enhanced upconversion nanoparticles	en_US
dc.type	Journal Article
utslib.citation.volume	14	en_US
utslib.citation.volume	10	en_US
utslib.for	1007 Nanotechnology	en_US
utslib.for	0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	10 Technology	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
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access
pubs.issue	14	en_US
pubs.publication-status	Published	en_US
pubs.volume	10	en_US

Abstract:

© 2018 The Royal Society of Chemistry. Plasmonic nanostructures have been broadly investigated for enhancing many photophysical properties of luminescent nanomaterials. Precisely controlling the distance between the plasmonic nanostructure and the luminescent material is challenging particularly for the large-scale production of individual nanoparticles. Here we report an easy and reliable method for the large-scale dewetting of plasmonic gold nanoparticles onto core-shell (CS) upconversion nanoparticles (UCNPs). A commensurate NaYF4 shell with a thickness between 5 nm and 15 nm is used as a tunable spacer to control the distance between the UCNP and the plasmonic gold nanoparticles. The upconversion emission intensity of single gold decorated core-inert shell (Au-CS) UCNPs is quantitatively characterized using a scanning confocal microscope. The results demonstrate the highest feasible enhancement of upconversion emission and a record reduction in lifetime for UCNPs fabricated in this manner. The Au-CS UCNPs are further investigated by simulation and synchrotron near edge X-ray absorption fine structure (NEXAFS) analysis.

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http://hdl.handle.net/10453/130635