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Beam-profile-compensated quantum yield measurements of upconverting nanoparticles

Mousavi, Monirehalsadat LU ; Thomasson, Björn; Li, Meng; Kraft, Marco; Würth, Christian; Resch-Genger, Ute and Andersson-Engels, Stefan LU (2017) In Physical Chemistry Chemical Physics 19(33). p.22016-22022
Abstract

The quantum yield is a critically important parameter in the development of lanthanide-based upconverting nanoparticles (UCNPs) for use as novel contrast agents in biological imaging and optical reporters in assays. The present work focuses on the influence of the beam profile in measuring the quantum yield (φ) of nonscattering dispersions of nonlinear upconverting probes, by establishing a relation between φ and excitation light power density from a rate equation analysis. A resulting 60% correction in the measured φ due to the beam profile utilized for excitation underlines the significance of the beam profile in such measurements, and its impact when comparing results from different setups and groups across the world.

Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Chemistry Chemical Physics
volume
19
issue
33
pages
7 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85028420981
  • wos:000408257700012
ISSN
1463-9076
DOI
10.1039/c7cp03785f
language
English
LU publication?
yes
id
68f4aae8-bd20-429b-946e-406d66dcc8db
date added to LUP
2017-09-15 09:45:59
date last changed
2018-02-02 16:32:08
@article{68f4aae8-bd20-429b-946e-406d66dcc8db,
  abstract     = {<p>The quantum yield is a critically important parameter in the development of lanthanide-based upconverting nanoparticles (UCNPs) for use as novel contrast agents in biological imaging and optical reporters in assays. The present work focuses on the influence of the beam profile in measuring the quantum yield (φ) of nonscattering dispersions of nonlinear upconverting probes, by establishing a relation between φ and excitation light power density from a rate equation analysis. A resulting 60% correction in the measured φ due to the beam profile utilized for excitation underlines the significance of the beam profile in such measurements, and its impact when comparing results from different setups and groups across the world.</p>},
  author       = {Mousavi, Monirehalsadat and Thomasson, Björn and Li, Meng and Kraft, Marco and Würth, Christian and Resch-Genger, Ute and Andersson-Engels, Stefan},
  issn         = {1463-9076},
  language     = {eng},
  number       = {33},
  pages        = {22016--22022},
  publisher    = {Royal Society of Chemistry},
  series       = {Physical Chemistry Chemical Physics},
  title        = {Beam-profile-compensated quantum yield measurements of upconverting nanoparticles},
  url          = {http://dx.doi.org/10.1039/c7cp03785f},
  volume       = {19},
  year         = {2017},
}