Magnetic field enhanced upconversion luminescence and magnetic-optical hysteresis behaviors in NaYF<inf>4</inf>: Yb, Ho nanoparticles

Chen, P; Zhong, Z; Jia, H; Zhou, J; Han, J; Liu, X; Qiu, J

Magnetic field enhanced upconversion luminescence and magnetic-optical hysteresis behaviors in NaYF<inf>4</inf>: Yb, Ho nanoparticles

Chen, P Zhong, Z Jia, H Zhou, J

Han, J Liu, X Qiu, J

Permalink

Publication Type:: Journal Article
Citation:: RSC Advances, 2016, 6 (9), pp. 7391 - 7395
Issue Date:: 2016-01-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Published VersionAdobe PDF (732.43 kB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Chen, P	en_US
dc.contributor.author	Zhong, Z	en_US
dc.contributor.author	Jia, H	en_US
dc.contributor.author	Zhou, J https://orcid.org/0000-0002-0605-5745	en_US
dc.contributor.author	Han, J	en_US
dc.contributor.author	Liu, X	en_US
dc.contributor.author	Qiu, J	en_US
dc.date.issued	2016-01-01	en_US
dc.identifier.citation	RSC Advances, 2016, 6 (9), pp. 7391 - 7395	en_US
dc.identifier.uri	http://hdl.handle.net/10453/116423
dc.description.abstract	© The Royal Society of Chemistry 2016. Upconversion, an anti-Stokes process converting two or more low energy photons into a high energy photon, has received much attention due to its wide applications ranging from photonics to medicine. As a nonlinear optical process, the efficiency of upconversion is inherently low, which strongly limits the applications of upconversion. Here we report the enhancement of upconversion luminescence in NaYF4: Yb, Ho nanoparticles with a pulse magnetic field. The intensity of emissions from 5S2, 5F4 → 5I8, 5F5 → 5I8 and 5S2, 5F4 → 5I7 transitions has been increased 1.71, 1.93, 1.68 times respectively. The enhanced emission has been ascribed to the enhanced energy transfer from Yb3+ to Ho3+ with increasing magnetic field intensity. Besides, the magnetic-optical hysteresis behaviors of upconversion luminescence intensity have also been observed when the magnetic field was scanned from 0 T to 40 T. This is connected with the sluggish kinetics of spin re-orientation of the paramagnetic lanthanide ions in the pulse magnetic field. The magnetic field modulated upconversion luminescence demonstrated here might provide a new approach to enhance the upconversion efficiency.	en_US
dc.relation.ispartof	RSC Advances	en_US
dc.relation.isbasedon	10.1039/c5ra25657g	en_US
dc.title	Magnetic field enhanced upconversion luminescence and magnetic-optical hysteresis behaviors in NaYF<inf>4</inf>: Yb, Ho nanoparticles	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	6	en_US
utslib.for	100711 Nanophotonics	en_US
utslib.for	03 Chemical Sciences	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	open_access
pubs.issue	9	en_US
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

© The Royal Society of Chemistry 2016. Upconversion, an anti-Stokes process converting two or more low energy photons into a high energy photon, has received much attention due to its wide applications ranging from photonics to medicine. As a nonlinear optical process, the efficiency of upconversion is inherently low, which strongly limits the applications of upconversion. Here we report the enhancement of upconversion luminescence in NaYF4: Yb, Ho nanoparticles with a pulse magnetic field. The intensity of emissions from 5S2, 5F4 → 5I8, 5F5 → 5I8 and 5S2, 5F4 → 5I7 transitions has been increased 1.71, 1.93, 1.68 times respectively. The enhanced emission has been ascribed to the enhanced energy transfer from Yb3+ to Ho3+ with increasing magnetic field intensity. Besides, the magnetic-optical hysteresis behaviors of upconversion luminescence intensity have also been observed when the magnetic field was scanned from 0 T to 40 T. This is connected with the sluggish kinetics of spin re-orientation of the paramagnetic lanthanide ions in the pulse magnetic field. The magnetic field modulated upconversion luminescence demonstrated here might provide a new approach to enhance the upconversion efficiency.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/116423