A photochemical determination of luminescence efficiency of upconverting nanoparticles

Submitting author affiliation:

Beilstein Arch. 2019, 201973. https://doi.org/10.3762/bxiv.2019.73.v1

Published 22 Jul 2019

cc-by Logo


Upconverting nanoparticles are a rising class of non-linear luminescent probes burgeoning since the beginning of the 2000’s, especially for their attractiveness in biology. However, the precise quantification of the light delivered remains a hot problem in order to estimate the impact in biology, resulting in the development by a few teams of sophisticated photophysical measurements (operable under NIR excitation). Here, we present the first attempt towards a simple and cheap photochemical approach consisting of a pseudo-actinometric characterization of the green emission of NaYF4:Yb,Er. Using the recently calibrated actinometer 1,2-bis(2,4-dimethyl-5-phenyl-3-thienyl)-3,3,4,4,5,5-hexafluoro-1-cyclopentene operating in the green region of the visible spectra, we propose simple photochemical experiments to get an accurate estimation of the efficiency of these green-emitting “nanolamps”. The agreement of the collected data with the previous published results validates this approach.

Keywords: Photochemistry; Diarylethene; actinometry; upconverting nanoparticle; lanthanide

Supporting Information

Format: DOCX Size: 408.8 KB   Download

How to Cite

When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

AMOUROUX, B.; ROUX, C.; MICHEAU, J.-C.; GAUFFRE, F.; COUDRET, C. M. Beilstein Arch. 2019, 201973. doi:10.3762/bxiv.2019.73.v1

Download Citation

Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and Zotero.