Preparation method and application of new multifunctional display material

A multi-functional and new technology, applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of short afterglow life, unfavorable dark field information timeliness display, slow development of inorganic compound functional luminescent materials, etc., and achieve wide application prospects , excellent repeatability and stability

Active Publication Date: 2022-04-15
张君诚
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  • Description
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  • Application Information

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Problems solved by technology

[0003] But so far, the development speed of inorganic compound functional luminescent materials is very slow. Although there have been reports on dual-functional materials with photochange and long afterglow, such materials are very limited, and there is a short afterglow life, which is not conducive to Defects such as time-sensitive display of dark field information
In addition, the use of existing inorganic compound functional luminescent materials is still lacking in the simultaneous realization of bright and dark dual-field information display, time-sensitive dynamic information display, and information differential display in bright and dark dual-field.

Method used

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  • Preparation method and application of new multifunctional display material
  • Preparation method and application of new multifunctional display material
  • Preparation method and application of new multifunctional display material

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[0074] The embodiment of the present invention also provides a preparation method of a novel multifunctional display material, comprising the following steps:

[0075] (1) weigh (La) in the expression respectively according to the molar percentage ratio 1-x-y m x PR y ) u (Ti 1-z N z ) v o 7 raw materials contained in;

[0076] (2) add solvent to the raw material that weighs, dry after fully grinding and obtain mixed powder;

[0077] (3) Pre-burning the mixed powder, and cooling to obtain a cooled product;

[0078] (4) After the cooled product is fully ground and mixed, it is calcined in the atmosphere to obtain a calcined product;

[0079] (5) Grinding the calcined product into powder after cooling to obtain the finished display material.

[0080] In a preferred embodiment, the preparation method is a high-temperature solid-phase synthesis method; the solvent is at least one of deionized water or absolute ethanol. Regarding the dosage of the solvent, since the purpo...

Embodiment 1

[0090] According to the chemical expression showing the material La 1.999 PR 0.001 Ti 2 o 7 , Weigh the raw material La respectively 2 o 3 (Analytical pure) 3.2571g, TiO 2 (Analytical pure) 1.5990g and Pr 6 o 11 (Analytical pure) 0.0071g, the molar percentage ratio of each element is 1.999:0.001:2:7, add deionized water to the raw material weighed, fully grind to obtain a mixed powder, and then pre-calcined at 600°C Cool after 2 hours, grind and mix the cooled product thoroughly, then calcinate in air atmosphere at 1400°C for 3 hours, then grind the calcined product into powder after cooling to obtain the finished display material.

Embodiment 2

[0092] According to the chemical expression showing the material La 1.9975 PR 0.0025 Ti 2 o 7 , Weigh the raw material La respectively 2 o 3 (Analytical pure) 3.2547g, TiO 2 (Analytical pure) 1.5990g and Pr 6 o 11 (Analytical pure) 0.0043g, the molar percentage ratio of each element is 1.9975:0.0025:2:7, add deionized water to the weighed raw material, fully grind to obtain a mixed powder, and then pre-calcined at 600°C Cool after 2 hours, grind and mix the cooled product thoroughly, then calcinate in air atmosphere at 1400°C for 3 hours, then grind the calcined product into powder after cooling to obtain the finished display material.

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Abstract

The invention proposes a preparation method and application of a novel multifunctional display material, belonging to the technical field of inorganic functional luminescent materials. The multifunctional display material disclosed by the present invention has a chemical expression of (La 1‑x‑y m x PR y ) u (Ti 1‑z N z ) v o 7 , M is one or more of Ga, Ce, Mn, Sm, Tb, Dy, Nd, Gd and Er elements and oxides, carbonates, nitrates or sulfides containing the elements, N is Ce, Cr , Ge, Sn and Zr elements and one or more of oxides, carbonates, nitrates or sulfides containing the elements, 0≤x≤0.1; 0<y≤0.1; 1.8≤u≤2; 0 ≤z≤0.1; 1.8≤v≤2.2 and u:v=(1.80~2.0):2. The material can realize the time-sensitive display of photochromism and afterglow in both bright and dark fields, as well as the differential display of information in both bright and dark fields, and can be widely used in multi-dimensional anti-counterfeiting, information storage reading and encryption, optoelectronic displays, multi- Stimuli-responsive optical indicators and encode time-sensitive dual-field information, visual readout and differential response encryption.

Description

technical field [0001] The invention belongs to the technical field of inorganic functional luminescent materials, and in particular relates to a preparation method and application of a novel multifunctional display material. Background technique [0002] At present, the research on functional luminescent materials of organic compounds develops rapidly, and has achieved relatively ideal results, but this kind also has problems such as poor robustness and stability, and easy to be oxidized and degraded. Inorganic compound functional luminescent materials have outstanding advantages such as high physical and chemical stability, good fatigue resistance and easy formability, and have potential application values ​​and broad fields in many aspects such as optical information storage, optical device materials, anti-counterfeiting, and sensors. market expectation. [0003] But so far, the development speed of inorganic compound functional luminescent materials is very slow. Althou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/78C09K11/80C08L75/04C08K3/22C08J5/18
CPCC09K11/7769C08K3/22C08J5/18C08J2375/04
Inventor 张君诚
Owner 张君诚
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