Multisignal optical temperature-sensing properties of Eu3+ -doped NaYF4 nanoparticles

Wenjun Ma; Zheng Li; Pan Lu; Lin Lin; Mingze Zhang; Zhezhe Wang; Zhuohong Feng; Zhiqiang Zheng

doi:10.1002/bio.4400

Multisignal optical temperature-sensing properties of Eu³⁺ -doped NaYF₄ nanoparticles

Luminescence. 2022 Dec;37(12):2098-2104. doi: 10.1002/bio.4400. Epub 2022 Oct 25.

Authors

Wenjun Ma¹, Zheng Li¹, Pan Lu¹, Lin Lin^{1

2

3}, Mingze Zhang¹, Zhezhe Wang^{1

2

3}, Zhuohong Feng^{1

2

3}, Zhiqiang Zheng^{1

2

3}

Affiliations

¹ College of Physics and Energy, Fujian Normal University, Fuzhou, China.
² Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering Fuzhou, China.
³ Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, Fujian Normal University, Fuzhou, China.

PMID: 36268695
DOI: 10.1002/bio.4400

Abstract

In this paper, the multisignal (different emissions/colours) temperature sensing of NaYF₄ :Eu³⁺ nanoparticles is investigated, which is based on fluorescence intensity ratios (FIRs) between ⁵ D₀ →⁷ F_J (J=1-4) and ⁵ D₁ →⁷ F_J' emissions. The ⁵ D₁ →⁷ F_J' (J'=0-2) emissions can be clearly observed due to the low photon energy of NaYF₄ . Based on the FIRs between different ⁵ D₀ →⁷ F_J and ⁵ D₁ →⁷ F_J' emissions, higher absolute/relative temperature sensitivities are obtained. Compared with the FIR between whole ⁵ D₀ →⁷ F_J and ⁵ D₁ →⁷ F_J' emissions, the maximum value of S_a was improved from 0.27 K^-1 to 5.02 K^-1 and that of S_r was improved from 0.89%·K^-1 to 1.27%·K^-1 . Furthermore, the FIRs between different colours of emissions were investigated for the application of wide-range multicolour temperature sensing.

Keywords: NaYF4:Eu3+ nanoparticles; fluorescence intensity ratio; multisignal; optical temperature sensing; rare-earth-doped phosphor.

Abstract

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