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A fluorescent temperature probe material

A technology of fluorescence temperature and fluorescence intensity, applied in the field of fluorescent temperature probe materials

Active Publication Date: 2020-08-07
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The latter selects two ions with large differences in thermal coupling, and detects the temperature by measuring the ratio of their fluorescence intensity, but there is a certain detection error.

Method used

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  • A fluorescent temperature probe material
  • A fluorescent temperature probe material
  • A fluorescent temperature probe material

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Embodiment

[0022] A fluorescent temperature probe material comprises a nanocrystalline shell layer, a nanocrystalline intermediate layer and a nanocrystalline core. Fluorescent temperature probe material is NaGdF 4 :Yb / Tm / Li@NaScF 4 @NaYF 4 :Yb@NaLuF 4 :Yb / Er, the nanocrystalline shell is NaLuF 4 :jYbkEr, the nanocrystalline core is NaGdF 4 :xYbyTmzLi, the nanocrystalline interlayer is NaScF 4 @NaYF 4 :mYb.

[0023]The ion doping concentration of x is 20-80%, the ion doping concentration of y is 0.5-2%, the ion doping concentration of z is 0-20%, the ion doping concentration of j is 20%-80%, k The ion doping concentration of m is 1-5%, and the ion doping concentration of m is 0-40%, and the unit is millimole.

[0024] The preparation method of fluorescent temperature probe material comprises the following steps: (1) 0.695 mmoles of gadolinium acetate, 0.2 mmoles of ytterbium acetate, 0.005 mmoles of thulium acetate, 0.1 mmoles of lithium acetate, and 8 milliliters of oleic acid a...

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Abstract

The invention belongs to the field of inorganic luminescent materials. A fluorescent temperature probe material comprises a nanocrystalline shell layer, a nanocrystalline intermediate layer and a nanocrystalline core, the nanocrystalline shell layer is NaLuF4:jYbkEr, and the nanocrystalline core is NaGdF4:xYbyTmzLi. The fluorescent temperature probe material has high sensitivity while reducing fluorescence signal detection errors.

Description

technical field [0001] The invention belongs to the field of inorganic up-conversion luminescent materials, and relates to a fluorescent temperature probe material. Background technique [0002] Traditional temperature detection based on thermal contact, such as liquid-in-glass thermometers, thermocouples, resistance thermometers, etc., are difficult to use in corrosive, electromagnetic interference and other environments due to the nature of their intrinsic properties, or for tiny electronic components, biological Measurements in cells, fast moving objects. Therefore, the development of non-contact temperature sensors with fast response, high spatial and temperature resolution, and remote measurement has important scientific value and practical significance. Among them, fluorescence temperature detection is a novel non-contact temperature detection technology by characterizing the fluorescence intensity, fluorescence decay lifetime or emission peak position of the phosphor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/02C09K11/85B82Y40/00G01K11/20
CPCB82Y40/00C09K11/02C09K11/7773G01K11/20
Inventor 夏洁楠雷磊徐时清
Owner CHINA JILIANG UNIV