基于铥和镱掺杂氧化钇上转换发光的发光测温

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-03-13 DOI:10.1016/j.jlumin.2025.121189

I.V. Baklanova, V.N. Krasil'nikov, А.P. Tyutyunnik, Ya.V. Baklanova

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引用次数: 0

摘要

采用前驱体法合成了（y0.95 yb0.05 - xtmx）2O3 （x = 0.0025, 0.005, 0.0075和0.01）荧光粉，研究了其在光谱可见区的上转换发射特性。用x射线粉末衍射分析证实了所得氧化物的相纯度。在420 - 730nm范围内测定了上转换发光的功率和浓度依赖性。为了评估化合物作为荧光温度传感器的潜力，研究了（Y0.95Yb0.045Tm0.005）2O3样品在25 ~ 225℃范围内的上转换发射的温度依赖性。在498 K和300 K下的最大绝对灵敏度和相对灵敏度分别为2.416%和1.351%。（Y0.95Yb0.045Tm0.005）2O3样品的发光颜色在150 ~ 175°С的狭窄温度范围内由蓝色变为白色。

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Luminescence thermometry based on upconversion luminescence of yttrium oxide doped with thulium and ytterbium

The (Y_0.95Yb_0.05-xTm_х)₂O₃ (x = 0.0025, 0.005, 0.0075 and 0.01) phosphors were synthesized by the precursor method to study their upconversion emission characteristics in the spectral visible region. The phase purity of the obtained oxides was confirmed by X-ray powder diffraction analysis. The power and concentration dependences of upconversion luminescence were determined for the 420–730 nm region. To evaluate the potential of the compounds as fluorescent temperature sensors, the temperature dependences of upconversion emission of (Y_0.95Yb_0.045Tm_0.005)₂O₃ sample were investigated in the range from 25 to 225 °C. The maximum absolute and relative sensitivities were 2.416 % K⁻¹ at 498 K and 1.351 % K⁻¹ at 300 K, respectively. The luminescence color of the (Y_0.95Yb_0.045Tm_0.005)₂O₃ sample changes from blue to white in a narrow temperature range of 150–175°С.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.