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Lanthanide luminescent material with triple luminescence channel and preparation method thereof

A luminescent material, lanthanide technology, applied in the direction of luminescent materials, organic chemical methods, chemical instruments and methods, etc., can solve the problems of single luminescent pathway, rare research and reports, and rare compounds, so as to improve implementability and reduce cost. The effect of low and high thermal stability

Active Publication Date: 2020-06-30
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current research and reports based on lanthanide luminescent materials with multiple luminescence channels, that is, multifunctionality, are still very rare.
[0004] The existing luminescent crystal materials of lanthanides generally only have a single light-emitting pathway, and the reported compounds with triple or more light-emitting pathways in lanthanide light-emitting crystal materials are very rare, so the development of multifunctional Lanthanide luminescent materials have important practical significance

Method used

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  • Lanthanide luminescent material with triple luminescence channel and preparation method thereof
  • Lanthanide luminescent material with triple luminescence channel and preparation method thereof
  • Lanthanide luminescent material with triple luminescence channel and preparation method thereof

Examples

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Embodiment 1

[0035] This embodiment provides a preparation method of crystalline Eu rare earth luminescent material (Eu-1), and the specific steps are as follows:

[0036] The reactant Eu(NO 3 ) 3 .6H 2 O:C 12 h 8 N 2 (O-phenanthroline) = 1:6 molar ratio into a 20mL glass scintillation vial, capped and sealed, heated to 140 ° C, heated for 3 days, then cooled to room temperature at 6 ° C / h, the product was distilled with water and ethanol Alternate washing is carried out until the impurities are completely removed, and then the obtained crystal product is washed with ethanol, and then dried in an oven at 90°C to obtain a white block transparent crystal, which is the crystalline Eu-1 rare earth luminescent material. The yield is about 52%.

[0037] The fine structure of compound Eu-1 was determined by single crystal X-ray diffraction, and its single crystal structure is as follows figure 1 shown. A large number of phase-pure Eu-1 compounds were confirmed by powder diffraction tech...

Embodiment 2

[0044] Prepare crystalline Eu rare earth luminescent material according to the method of Example 1, the difference is that Eu(NO 3 ) 3 ·6H 2 O:C 12 h 8 N 2 (O-phenanthroline) = 1:7, when the temperature is raised to 130°C, the obtained Eu rare earth luminescent material also has photoluminescent, X-ray and mechanoluminescent effects.

Embodiment 3

[0046] Prepare crystalline Eu rare earth luminescent material according to the method of Example 1, the difference is that Eu(NO 3 ) 3 ·6H 2 O:C 12 h 8 N 2 (o-phenanthroline)=1:8, heat up to 150°C. The obtained Eu rare earth luminescent material also has photoluminescent, X-ray and mechanoluminescent effects.

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Abstract

The present invention relates to a lanthanide luminescent material having triple luminescent channels and a preparation method therefor. The preparation method comprises the following steps: according to a molar ratio of 0.5-1 : 4-8, reacting a nitrate of a lanthanide metal and phenanthroline under closed conditions, wherein the reaction temperature is 130ºC-150ºC, and the reaction time is 2-3 days; and cooling same to obtain a crystal. The crystal is the lanthanide luminescent material having triple luminescent channels. The preparation method for the lanthanide luminescent material of the present invention is simple, efficient and green and environmentally friendly, and the luminescent material prepared thereby has intrinsic, excellent and efficient triple luminescent effects, i.e. photoluminescence, X-ray luminescence and mechanoluminescence.

Description

technical field [0001] The invention relates to the technical field of fluorescent material preparation, in particular to a lanthanide luminescent material with triple luminescent channels and a preparation method thereof. Background technique [0002] Rare earth luminescent materials are produced by the jumping of rare earth 4f electrons between different energy levels. Due to different excitation methods, luminescence can be divided into photoluminescence, cathodoluminescence, electroluminescence, radioluminescence, X-ray luminescence, and mechanoluminescence. , chemiluminescence, and bioluminescence. Rare earth luminescence has the advantages of strong absorption capacity, high conversion efficiency, and can emit spectrum from ultraviolet to infrared light, especially in the visible light region. Rare earth luminescent materials have been widely used in various aspects such as new light sources, X-ray intensifying screens, and display imaging. At the same time, the appl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D471/04C09K11/06
CPCC07B2200/13C07D471/04C09K11/06C09K2211/182
Inventor 王殳凹桂大祥
Owner SUZHOU UNIV
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