Rare earth doping alkaline earth metal fluorine halidenano luminescent materials and preparation method and application thereof

A nano-luminescent material and alkaline-earth metal technology, which is applied in luminescent materials, chemical instruments and methods, material analysis by optical means, etc., can solve the problems of uneven size, poor dispersion of nanoparticles, complicated operation steps, etc. Uniform appearance, good dispersibility and simple preparation process

Active Publication Date: 2019-10-22
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, the inventor's research group reported the synthesis of BaFCl nanoparticles by solvothermal method (reference: Ju Qiang et al., "One-Step Synthesis and Optical Properties of Water-Soluble and Amine-Functionalized Dy 3+ -Doped BaFCl Nanocrystals."J.Nanosci.Nanotechnol.11,9478-9483,2011), but the synthesized nanoparticles have poor dispersion and uneven size
Wang Yuansheng's research group synthesized oil-soluble strontium fluoride chloride nanoparticles by a two-step method (reference: WangYuansheng et.al., Monodisperse upconversion Er 3+ / Yb 3+ : MFCl (M=Ca, Sr, Ba) nanocrystals synthesized via a seed-based chlorination route, ChemComm, 47, 11083 (2011)), the synthesized nanoparticles have good dispersion and uniform size, but the operation steps are cumbersome

Method used

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  • Rare earth doping alkaline earth metal fluorine halidenano luminescent materials and preparation method and application thereof
  • Rare earth doping alkaline earth metal fluorine halidenano luminescent materials and preparation method and application thereof
  • Rare earth doping alkaline earth metal fluorine halidenano luminescent materials and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1: SrFCl: 18 mmol% Yb 3+ / 2mmol%Er 3+ Preparation of nanoparticles

[0056] Weigh 0.8 mmol Sr (CH 3 COO) 3 ·0.5H 2 O, 0.18 mmol Yb (CH 3 COO) 3 ·4H 2 O and 0.02 mmol Er (CH 3 COO) 3 ·4H 2 O. Add 5 mL of oleic acid, 5 mL of oleylamine and 10 mL of octadecene, mix well, heat up to dissolve in a nitrogen atmosphere, and stir well. The temperature was raised to 300°C under a nitrogen atmosphere, 1 mmol HF and 1 mmol HCl were added, the temperature was maintained for 1 h, and the temperature was lowered to room temperature. Precipitation and centrifugal washing with ethanol can obtain oil-soluble SrFCl with good dispersibility: 18 mmol% Yb 3+ / 2mmol%Er 3+ nanoparticles.

Embodiment 2

[0057] Example 2: SrFBr: 18 mmol% Yb 3+ / 2mmol%Er 3+ Preparation of nanoparticles

[0058] Weigh 0.8 mmol Sr (CH 3 COO) 3 ·0.5H 2 O, 0.18 mmol Yb (CH 3 COO) 3 ·4H 2 O and 0.02 mmol Er (CH 3 COO) 3 ·4H 2 O. Add 5 mL of oleic acid, 5 mL of oleylamine and 10 mL of octadecene, mix well, heat up to dissolve in a nitrogen atmosphere, and stir well. The temperature was raised to 300°C under a nitrogen atmosphere, 1 mmol HF and 1 mmol HBr were added, the temperature was maintained for 1 h, and the temperature was lowered to room temperature. Precipitation and centrifugal washing with ethanol can obtain oil-soluble SrFBr with good dispersibility: 18 mmol% Yb 3+ / 2mmol%Er 3+ nanoparticles.

Embodiment 3

[0059] Example 3: SrFCl: 5 mmol% Eu 3+ Preparation of nanoparticles

[0060] Weigh 0.95 mmol Sr (CH 3 COO)·0.5H 2 O and 0.05 mmol Eu (CH 3 COO) 3 ·4H 2 O. Add 5 mL of oleic acid, 5 mL of oleylamine and 10 mL of octadecene, mix well, heat up to dissolve in a nitrogen atmosphere, and stir well. The temperature was raised to 300°C under a nitrogen atmosphere, 1 mmol HF and 1 mmol HCl were added, the temperature was maintained for 1 h, and the temperature was lowered to room temperature. Precipitation and centrifugal washing with ethanol can obtain oil-soluble SrFCl with good dispersibility: 5mmol%Eu 3+ nanoparticles.

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Abstract

The invention belongs to the technical field of luminescent materials, and particularly relates to rare earth doping alkaline earth metal fluorine halidenano luminescent materials and a preparation method and application thereof. Reaction raw materials of the rare earth doping alkaline earth metal fluorine halidenano luminescent materialscan be directly purchased from a reagent company without further purification. A series of rare earth doping alkaline earth metal fluorine halide nanoparticles can be synthesized by the preparation method, synthesis conditions are easy to control, the size andmorphology of the synthesis nanoparticles are uniform, and the dispersion is good. Moreover, the preparation technology is simple, economy and environmental protection are achieved, operation is convenient, and high practicability is achieved.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and in particular relates to a rare earth-doped alkaline earth metal fluoride halide nano-luminescent material and a preparation method and application thereof. Background technique [0002] With the development of rare earth-doped inorganic nano-fluorescent materials in recent years, they have been widely used in green lighting sources, flat panel displays, nano-optical devices, and as fluorescent biomarker probes that have emerged in recent years. In the current research on rare earth doped inorganic nano fluorescent materials, the rare earth doped sodium yttrium fluoride (NaYF 4 ), sodium gadolinium fluoride (NaGdF 4 ) or lithium yttrium fluoride (LiYF 4 ) and other systems, and little research has been done on strontium fluoride halide (SrFX) (X=Cl, Br, I). [0003] Strontium fluoride halide (SrFX) (X=Cl, Br, I) is a very important alkaline earth metal dichalcogenide, they ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/61G01N21/64
CPCC09K11/7733C09K11/7773G01N21/6402
Inventor 郑伟委娇娇陈学元黄萍刘龑
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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