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Multi-variable compensated quantum yield measurements of upconverting nanoparticles with high dynamic range : a systematic approach

Sekar, Sanathana Konugolu Venkata ; Matias, Jean S. ; Dumlupinar, Gokhan ; Niemitz, Lorenzo ; Mousavi, Monirehalsadat LU ; Komolibus, Katarzyna and Andersson-Engels, Stefan LU (2022) In Optics Express 30(10). p.16572-16584
Abstract

Non-linear materials such as upconverting nanoparticles (UCNPs) are emerging technology with fast-growing applications in various fields. The power density dependence of the emission quantum yield (QY) of these non-linear materials makes them challenging to characterize using currently available commercial QY systems. We propose a multimodal system to measure QY over a wide dynamic range (1:104), which takes into account and compensates for various distorting parameters (scattering, beam profile, inner filter effect and bandwidth of emission lines). For this, a beam shaping approach enabling speckle free beam profiles of two different sizes (530 µm or 106 µm) was employed. This provides low noise high-resolution QY curves. In... (More)

Non-linear materials such as upconverting nanoparticles (UCNPs) are emerging technology with fast-growing applications in various fields. The power density dependence of the emission quantum yield (QY) of these non-linear materials makes them challenging to characterize using currently available commercial QY systems. We propose a multimodal system to measure QY over a wide dynamic range (1:104), which takes into account and compensates for various distorting parameters (scattering, beam profile, inner filter effect and bandwidth of emission lines). For this, a beam shaping approach enabling speckle free beam profiles of two different sizes (530 µm or 106 µm) was employed. This provides low noise high-resolution QY curves. In particular, at low power densities, a signal-to-noise ratio of >50 was found. A Tm-based core-shell UCNP with excitation at 976 nm and emission at 804 nm was investigated with the system.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
30
issue
10
pages
13 pages
publisher
Optical Society of America
external identifiers
  • pmid:36221497
  • scopus:85129396192
ISSN
1094-4087
DOI
10.1364/OE.452874
language
English
LU publication?
yes
id
19d6d6ba-a1e8-461c-97b9-447037733521
date added to LUP
2022-07-06 14:53:03
date last changed
2025-01-24 09:17:47
@article{19d6d6ba-a1e8-461c-97b9-447037733521,
  abstract     = {{<p>Non-linear materials such as upconverting nanoparticles (UCNPs) are emerging technology with fast-growing applications in various fields. The power density dependence of the emission quantum yield (QY) of these non-linear materials makes them challenging to characterize using currently available commercial QY systems. We propose a multimodal system to measure QY over a wide dynamic range (1:104), which takes into account and compensates for various distorting parameters (scattering, beam profile, inner filter effect and bandwidth of emission lines). For this, a beam shaping approach enabling speckle free beam profiles of two different sizes (530 µm or 106 µm) was employed. This provides low noise high-resolution QY curves. In particular, at low power densities, a signal-to-noise ratio of &gt;50 was found. A Tm-based core-shell UCNP with excitation at 976 nm and emission at 804 nm was investigated with the system.</p>}},
  author       = {{Sekar, Sanathana Konugolu Venkata and Matias, Jean S. and Dumlupinar, Gokhan and Niemitz, Lorenzo and Mousavi, Monirehalsadat and Komolibus, Katarzyna and Andersson-Engels, Stefan}},
  issn         = {{1094-4087}},
  language     = {{eng}},
  number       = {{10}},
  pages        = {{16572--16584}},
  publisher    = {{Optical Society of America}},
  series       = {{Optics Express}},
  title        = {{Multi-variable compensated quantum yield measurements of upconverting nanoparticles with high dynamic range : a systematic approach}},
  url          = {{http://dx.doi.org/10.1364/OE.452874}},
  doi          = {{10.1364/OE.452874}},
  volume       = {{30}},
  year         = {{2022}},
}