首页|Luminescent Nd3+, Cr3+ codoped YAG nanocrystals for thermal sensing: Influence of the excitation wavelength

Luminescent Nd3+, Cr3+ codoped YAG nanocrystals for thermal sensing: Influence of the excitation wavelength

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  • NSTL
  • Elsevier
Y3Al5O12 (YAG) nanocrystals codoped with Nd3+ and Cr3+ ions have been produced by a modified solvothermal method. The incorporation of both Nd3+ and Cr3+ inside the YAG network has been attested by X-ray diffraction and photoluminescence measurements. Modification of the excitation wavelength leads to ratiometric intensity changes between the luminescence attributed to Nd3+ and that of Cr3+. Temperature-dependent luminescence spectra have been analyzed according to the different excitation wavelengths. The highest relative thermal intensity (S-r = 2.5%.K-1) is obtained under a 532 nm excitation, which favors the direct and independent excitation of Cr3+ and Nd3+.

LuminescenceNanothermometryYAG nanocrystalsLanthanideTransition metal ionThermal sensingUP-CONVERSIONTEMPERATURETHERMOMETRYNANOTHERMOMETERSNANOPARTICLESSENSITIVITYDEPENDENCEWINDOWSIZEGD3+

Dantelle, Geraldine、Reita, Valerie、Ibanez, Alain、Ledoux, Gilles、Dujardin, Christophe

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Univ Grenoble Alpes

Univ Claude Bernard Lyon 1

2022

10.1016/j.physb.2021.413622

Physica

Physica

ISSN：0921-4526
年,卷(期)：2022.628
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