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Synthesis of Mn2+:Zn2SiO4–Eu3+:Gd2O3 nanocomposites for highly sensitive optical thermometry through the synergistic luminescence from lanthanide-transition metal ions

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Abstract

In this work, Mn2+:Zn2SiO4–Eu3+:Gd2O3 nanocomposites were fabricated following a multi-step solution route. The fluorescence intensity ratio of Mn2+ to Eu3+ in these composites exhibits remarkable temperature dependence, owing to the diverse thermal quenching behaviors of Mn2+ and Eu3+ ions. Using these nanomaterials to perform thermometry, excellent temperature sensitivity is achieved in the room temperature range. Specifically, the values of relative temperature sensitivity are all beyond 2.5% K−1 in the whole range of 303–323 K (i.e. 30–50 °C), and reach as high as 3.05% K−1 at 303 K, remarkably higher than those of other inorganic optical thermometric materials at a similar temperature. And the absolute sensitivities are all beyond 0.0089 K−1 in this temperature range, which is also a relatively high value. These results indicate the Mn2+:Zn2SiO4–Eu3+:Gd2O3 nanocomposites to be very promising nano-thermometric materials.

Graphical abstract: Synthesis of Mn2+:Zn2SiO4–Eu3+:Gd2O3 nanocomposites for highly sensitive optical thermometry through the synergistic luminescence from lanthanide-transition metal ions

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Publication details

The article was received on 07 Apr 2017, accepted on 02 May 2017 and first published on 04 May 2017


Article type: Paper
DOI: 10.1039/C7TC01500C
Citation: J. Mater. Chem. C, 2017, Advance Article
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    Synthesis of Mn2+:Zn2SiO4–Eu3+:Gd2O3 nanocomposites for highly sensitive optical thermometry through the synergistic luminescence from lanthanide-transition metal ions

    F. Huang and D. Chen, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC01500C

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