Beam-profile-compensated quantum yield measurements of upconverting nanoparticles

Monirehalsadat Mousavi, Björn Thomasson, Meng Li, Marco Kraft, Christian Würth, Ute Resch-Genger, Stefan Andersson-Engels

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

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.

Originalspråkengelska
Sidor (från-till)22016-22022
Antal sidor7
TidskriftPhysical Chemistry Chemical Physics
Volym19
Nummer33
DOI
StatusPublished - 2017

Ämnesklassifikation (UKÄ)

  • Fysikalisk kemi

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