Issue 42, 2014

Cooling of Er3+ with Tm3+ for accurate temperature sensing using yttrium silicate compact powders

Abstract

Er3+ doped nanocrystalline powders are extensively used for thermometry based on luminescence spectral analysis. The luminescence from Er3+ is produced by a nonlinear (two-photon) absorption process which may generate strong internal heat by activation of nonradiative relaxation channels. If the heat dissipation is not efficient, as is the case for compact powders, there will be inaccurate readings of the temperature. Our proposed solution is to cool down Er3+ by transferring part of its accumulated energy to another rare-earth element in the lattice. Here, we show our results for Er3+–Tm3+ co-doped yttrium silicate powders prepared by combustion synthesis.

Graphical abstract: Cooling of Er3+ with Tm3+ for accurate temperature sensing using yttrium silicate compact powders

Article information

Article type
Paper
Submitted
19 Aug 2014
Accepted
01 Sep 2014
First published
01 Sep 2014

Dalton Trans., 2014,43, 16025-16030

Cooling of Er3+ with Tm3+ for accurate temperature sensing using yttrium silicate compact powders

N. Rakov and G. S. Maciel, Dalton Trans., 2014, 43, 16025 DOI: 10.1039/C4DT02525C

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