Issue 28, 2018

NIR–NIR photon avalanche based luminescent thermometry with Nd3+ doped nanoparticles

Abstract

The recent advances in remote luminescent thermometry give promise for numerous important biomedical applications including temperature T mapping with sub-micrometer spatial resolution and real time kinetics studies within single cells. The ongoing challenge is to find luminophores, which exhibit many exorbitant parameters in a single luminescent nanoparticle, for example, high (e.g. SR > 2% per K) temperature sensitivities in the physiological temperature range, high luminescence brightness in the NIR spectral region, simplicity and reliability of T readout and mapping. Here, we show an unprecedented approach to luminescent T sensing, which relies on highly temperature dependent non-resonant 1064 nm NIR photoexcitation and a 880 nm anti-Stokes avalanche-like NIR emission from Nd3+ doped nanoparticles. The behavior of NaYF4, Y2O3, YGdO3, YAlO3, Y3Al5O12, LiLaP4O12, Gd2O3 materials and rate-equation modeling suggest that this photon-avalanche phenomenon offers extraordinary features, such as SR > 4% per K at 300–350 K, high brightness in the NIR region and a double mode, intensity or time-resolved based T readout.

Graphical abstract: NIR–NIR photon avalanche based luminescent thermometry with Nd3+ doped nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
03 apr 2018
Accepted
19 jun 2018
First published
20 jun 2018

J. Mater. Chem. C, 2018,6, 7568-7575

NIR–NIR photon avalanche based luminescent thermometry with Nd3+ doped nanoparticles

L. Marciniak, A. Bednarkiewicz and K. Elzbieciak, J. Mater. Chem. C, 2018, 6, 7568 DOI: 10.1039/C8TC01553H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements