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Zirconium phosphate-based luminescent material as well as preparation method and application thereof

A luminescent material, zirconium phosphate technology, applied in luminescent materials, chemical instruments and methods, semiconductor devices, etc., can solve the problems of low luminous efficiency, poor color purity, poor chemical stability, etc., and achieve high luminous intensity and luminous color. Tuning, luminous spectrum adjustable effect

Inactive Publication Date: 2011-07-20
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various inorganic luminescent materials currently commercially available have disadvantages such as low luminous efficiency, poor color purity, and poor chemical stability.

Method used

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  • Zirconium phosphate-based luminescent material as well as preparation method and application thereof
  • Zirconium phosphate-based luminescent material as well as preparation method and application thereof
  • Zirconium phosphate-based luminescent material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] a) Weighing Y 2 o 3 (99.99%) 0.038 gram, be dissolved in the 1mol / L dilute nitric acid solution of 5ml, take by weighing 0.071 gram of citric acid and dissolve in this solution as complexing agent, after stirring at room temperature for 30 minutes, adjust the pH value of the solution with ammoniacal liquor to 5~6;

[0050] b) Weigh ZrOCl 2 ·8H 2 O (analytical pure) 0.645 grams, be dissolved in 20ml deionized water, add 0.841 grams of citric acid as complexing agent, after stirring at room temperature for 30 minutes, adjust the pH value of the solution to 7~8 with ammonia water;

[0051] c) mix the two solutions obtained by steps a) and b), and stir to make them uniform;

[0052] d) Add ammonium dihydrogen phosphate (NH 4 h 2 PO 4 , analytically pure) 0.345 g, stirred to form a transparent solution;

[0053] e) Dry the transparent solution obtained in step d) at 80-100°C to form a gel, then raise the temperature to 180-300°C to form an airgel, put the obtained ai...

Embodiment 2

[0057] a) Weigh La(OH) 3 (99.99%) 0.063 gram, be dissolved in the 1mol / L dilute nitric acid solution of 5ml, take by weighing 0.071 gram of citric acid and dissolve in this solution as complexing agent, after stirring at room temperature for 30 minutes, adjust the pH value of the solution with ammoniacal liquor to 5~6;

[0058] b) Weigh ZrOCl 2 ·8H 2 O (analytical pure) 0.645 grams, be dissolved in 20ml deionized water, add 0.841 grams of citric acid as complexing agent, after stirring at room temperature for 30 minutes, adjust the pH value of the solution to 7~8 with ammonia water;

[0059] c) mix the two solutions obtained by steps a) and b), and stir to make them uniform;

[0060] d) adding diammonium hydrogen phosphate ((NH 4 ) 2 HPO 4 , analytically pure) 0.396 g, stirred to form a transparent solution;

[0061] e) Dry the transparent solution obtained in step d) at 80-100°C to form a gel, then raise the temperature to 180-300°C to form an airgel, put the obtained ...

Embodiment 3

[0065] Weigh Gd 2 o 3 (99.99%) 0.060 gram, be dissolved in the 1mol / L dilute nitric acid solution of 5ml, all the other contents are with described in embodiment 1 or 2.

[0066] The white product obtained is Gd 0.33 Zr 2 (PO 4 ) 3 Material.

[0067] image 3 For the prepared Gd of this embodiment 0.33 Zr 2 (PO 4 ) 3 The excitation spectrum (solid line) and the emission spectrum (dashed line) of the material sample monitored at 312nm wavelength and the emission spectrum (dashed line) monitored at 200nm wavelength at room temperature, represented by image 3 Visible: the Gd that the present embodiment makes 0.33 Zr 2 (PO 4 ) 3 The material is a self-excited blue-white light-emitting material with an emission peak around 400nm, and is a good VUV blue-white light-emitting material.

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Abstract

The invention discloses a zirconium phosphate-based luminescent material. The composition of the luminescent material is shown as the following general formula: (Ln1-yTby)0.33Zr2(PO4)3, wherein y is more than or equal to 0 and less than or equal to 1; and Ln is a trivalent ion of one or more of Y, La, Gd and Lu. The zirconium phosphate-based luminescent material can be prepared by adopting a high temperature solid phase method or a chemical solution method. The luminescent material can be used as a blue-white, yellow-green or green VUV (Vacuum Ultraviolet) fluorescent material and can also be used as a yellow-green or green scintillator material for application to X ray medical imaging, high-energy ray safety detection, light-emitting diodes, display apparatuses, tricolor fluorescent lamps and field emission displays. Moreover, a preparation process of the zirconium phosphate-based luminescent material is safe, is easy and convenient to operate, is suitable for large-scale production and belongs to environment-friendly, low-energy-consumption and high-benefit industries, raw materials have low costs and are readily available, and basically no industrial three wastes are produced in the reaction process.

Description

technical field [0001] The invention relates to a zirconium phosphate-based luminescent material and its preparation method and application, in particular to a Tb-doped material with adjustable luminous color 3+ The rare earth zirconium phosphate luminescent material and its preparation method and application belong to the technical field of inorganic luminescent materials. Background technique [0002] The rapid development of science and technology has greatly promoted the application of inorganic luminescent materials in various fields: from trichromatic fluorescent materials for traditional fluorescent lamps in the lighting field to white LEDs, from traditional cathode ray display technology to plasma flat panel display technology to photoluminescence Devices and luminescent materials continue to show their unique advantages. With the popularity of information networks centered on computers and communications, and the rapid expansion of the market for mobile information...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/81H01L33/50H01L33/00
Inventor 王娇刘必秋陈昊鸿赵景泰
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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