Alkali metal-rare earth ternary sulfide nano luminescent material, preparation method and application thereof

A nano-luminescent material and ternary sulfide technology, applied in the direction of luminescent materials, nano-optics, chemical instruments and methods, etc., to achieve the effects of good dispersion, easy control of synthesis conditions, and convenient operation

Active Publication Date: 2021-05-28
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, about the rare earth doped NaRES with uniform shape and size and good dispersion 2 (RE=La, Gd, Lu, etc.) There is no literature report on nano-luminescent materials

Method used

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  • Alkali metal-rare earth ternary sulfide nano luminescent material, preparation method and application thereof
  • Alkali metal-rare earth ternary sulfide nano luminescent material, preparation method and application thereof
  • Alkali metal-rare earth ternary sulfide nano luminescent material, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: NaGdS 2 :0.5mmol%Yb 3+ / 0.5mmol%Er 3+ Preparation of nanoparticles

[0036] Weigh 2mmol CH at room temperature 3 COONa, 0.99mmol Gd(CH 3 COO) 3 4H 2 O, 0.005mmol Yb(CH 3 COO) 3 4H 2 O and 0.005mmol Er(CH 3 COO) 3 4H 2O. Add 4mL oleic acid, 8mL oleylamine and 8mL octadecene, mix evenly, heat up to dissolve under nitrogen atmosphere, stir evenly, cool down to room temperature, add 4mmol thiourea in absolute ethanol, drain ethanol at 80°C, under nitrogen atmosphere Raise the temperature to 280°C, keep it warm for 1h, and then drop to room temperature. Precipitation and centrifugal washing with ethanol can obtain oil-soluble NaGdS with good dispersion 2 :0.5mmol%Yb 3+ / 0.5mmol%Er 3+ nanoparticles.

Embodiment 2

[0037] Example 2: NaGdS 2 :0.5mmol%Yb 3+ Preparation of nanoparticles

[0038] Weigh 2mmol CH at room temperature 3 COONa, 0.995mmol Gd(CH 3 COO) 3 4H 2 O and 0.005mmol Yb(CH 3 COO) 3 4H 2 O. Add 4mL oleic acid, 8mL oleylamine and 8mL octadecene, mix evenly, heat up to dissolve under nitrogen atmosphere, stir evenly, cool down to room temperature, add 4mmol thiourea in absolute ethanol, drain ethanol at 80°C, under nitrogen atmosphere Raise the temperature to 280°C, keep it warm for 1h, and then drop to room temperature. Precipitation and centrifugal washing with ethanol can obtain oil-soluble NaGdS with good dispersion 2 :0.5mmol%Yb 3+ nanoparticles.

Embodiment 3

[0039] Example 3: NaGdS 2 : 1 mmol% Sm 3+ Preparation of nanoparticles

[0040] Weigh 2mmol CH at room temperature 3 COONa, 0.99mmol Gd(CH 3 COO) 3 4H 2 O and 0.01mmol Sm(CH 3 COO) 3 4H 2 O. Add 4mL oleic acid, 8mL oleylamine and 8mL octadecene, mix evenly, heat up to dissolve under nitrogen atmosphere, stir evenly, cool down to room temperature, add 4mmol thiourea in absolute ethanol, drain ethanol at 80°C, under nitrogen atmosphere Raise the temperature to 280°C, keep it warm for 1h, and then drop to room temperature. Precipitation and centrifugal washing with ethanol can obtain oil-soluble NaGdS with good dispersion 2 : 1 mmol% Sm 3+ nanoparticles.

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PUM

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Abstract

The invention discloses an alkali metal-rare earth ternary sulfide nano luminescent material, a preparation method and application thereof. According to the invention, reaction raw materials involved in the method can be directly purchased from a reagent company, and further purification is not needed; a series of rare earth doped alkali metal-rare earth ternary sulfide nano-particles can be synthesized by adopting the method, wherein the synthesis conditions are easy to control, and the synthesized nano-particles are uniform in size and morphology and good in dispersity; and the preparation process is simple, economical, environment-friendly and convenient to operate, and has relatively high practicability.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and in particular relates to an alkali metal-rare earth ternary sulfide nano luminescent material and a preparation method and application thereof. Background technique [0002] Rare earth-doped inorganic nanoluminescent materials have attracted widespread attention in the technical fields of green lighting, flat panel display, nano-optoelectronic devices, and fluorescent bioprobes because of their excellent optical properties. At present, the research on rare earth doped inorganic nano-fluorescent materials mainly uses rare earth doped sodium yttrium fluoride (NaYF 4 ), sodium fluorogadolinium (NaGdF 4 ) or lithium yttrium fluoride (LiYF 4 ) and other rare earth fluoride or oxide material systems, for rare earth sulfide luminescent material systems such as NaRES 2 (RE=La, Gd, Lu, etc.) are less studied. [0003] Alkali metal-rare earth ternary sulfide NaRES 2 It is a potential...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/84B82Y20/00B82Y40/00G01N21/63G01N21/64G01T1/202
CPCC09K11/7767B82Y20/00B82Y40/00G01N21/6428G01N21/63G01T1/202Y02B20/00
Inventor 张春光陈大钦郑伟陈学元
Owner FUJIAN NORMAL UNIV
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