Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 9, 2016
Previous Article Next Article

A broadening temperature sensitivity range with a core–shell YbEr@YbNd double ratiometric optical nanothermometer

Author affiliations

Abstract

The chemical architecture of lanthanide doped core–shell up-converting nanoparticles can be engineered to purposely design the properties of luminescent nanomaterials, which are typically inaccessible to their homogeneous counterparts. Such an approach allowed to shift the up-conversion excitation wavelength from ∼980 to the more relevant ∼808 nm or enable Tb or Eu up-conversion emission, which was previously impossible to obtain or inefficient. Here, we address the issue of limited temperature sensitivity range of optical lanthanide based nano-thermometers. By covering Yb–Er co-doped core nanoparticles with the Yb–Nd co-doped shell, we have intentionally combined temperature dependent Er up-conversion together with temperature dependent Nd → Yb energy transfer, and thus have expanded the temperature response range ΔT of a single nanoparticle based optical nano-thermometer under single ∼808 nm wavelength photo-excitation from around ΔT = 150 K to over ΔT = 300 K (150–450 K). Such engineered nanocrystals are suitable for remote optical temperature measurements in technology and biotechnology at the sub-micron scale.

Graphical abstract: A broadening temperature sensitivity range with a core–shell YbEr@YbNd double ratiometric optical nanothermometer

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Nov 2015, accepted on 25 Jan 2016 and first published on 26 Jan 2016


Article type: Paper
DOI: 10.1039/C5NR08223D
Citation: Nanoscale, 2016,8, 5037-5042

  •   Request permissions

    A broadening temperature sensitivity range with a core–shell YbEr@YbNd double ratiometric optical nanothermometer

    L. Marciniak, K. Prorok, L. Francés-Soriano, J. Pérez-Prieto and A. Bednarkiewicz, Nanoscale, 2016, 8, 5037
    DOI: 10.1039/C5NR08223D

Search articles by author

Spotlight

Advertisements