Preparation method of metavanadate nano crystal / polymer composite fluorescent screen

A metavanadate and composite fluorescence technology, applied in the field of preparation of metavanadate nanocrystal/polymer composite fluorescent film, can solve the problems of complicated process, serious pollution, poor control of composite nanoparticle size and shape, etc.

Inactive Publication Date: 2013-02-13
SHANXI FEIHONG MICRO NANO PHOTOELECTRONICS SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The combination of nanocrystals and polymers has a good effect on improving the performance of phosphors. The conventional method is to coat the phosphors with an inorganic layer, or use a polymer film as the substrate to physically compound the phosphors. However, in the preparation There are many disadvantages and deficiencies in the process, the process is cumbersome, serious pollution, high toxicity, the size and shape of composite nanoparticles are not easy to control, and the luminescent performance is unstable, which restricts the application of such materials

Method used

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  • Preparation method of metavanadate nano crystal / polymer composite fluorescent screen
  • Preparation method of metavanadate nano crystal / polymer composite fluorescent screen
  • Preparation method of metavanadate nano crystal / polymer composite fluorescent screen

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Embodiment Construction

[0168] The present invention will be further described below in conjunction with accompanying drawing:

[0169] figure 1 As shown, it is the state diagram of polyacrylamide gel. The position of each part must be correct, the ratio should be adjusted, and the operations should be performed in sequence.

[0170] The chemical substances used in the preparation are determined according to the pre-set range in grams, milliliters, millimeters, centimeters 3 is the unit of measurement.

[0171] The present invention can also use rubidium nitrate as a raw material to prepare a composite fluorescent film.

[0172] The polyacrylamide gel is carried out in a beaker, the beaker 3 is placed on the electric heater 1, the stirrer 5 is inserted in the beaker 3, the stirrer 5 is fixed by the bracket 6; the electric heater 1 is provided with a display screen 7, Indicator light 8, control switch 9, electric heater 1 is connected to agitator 5 through wire 4, and mixed solution 2 is in the bea...

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Abstract

The invention relates to a preparation method of a metavanadate nano crystal / polymer composite fluorescent screen. Nitrate is used as a precursor; polyacrylamide gel is first prepared and treated with low temperature calcination to obtain alkali metal metavanadate nano crystal white light material; then a styrene-methyl methacrylate copolymer is compounded with the nano crystal to obtain a composite fluorescent microballoon; and a solution spin coating method is employed to prepare a composite fluorescent film, which illuminates green and white lights and has a film thickness no more than 60mm. The composite fluorescent screen can be applied to panel display and white light diode, has a good purity reaching 98%, a high luminescence internal quantum efficiency reaching 86% and stable luminescent properties, and can emit green and white light with a color coordinate of x equal to 0.3117 and y equal to 0.4259. The preparation method with an advanced technology, accurate parameters and no environmental pollution is an ideal method for preparing an organic / an inorganic composite luminescent material.

Description

technical field [0001] The invention relates to a method for preparing a metavanadate nanocrystal / polymer composite fluorescent film, which belongs to the technical field of preparation and application of organic / inorganic composite luminescent materials. Background technique [0002] Nanocrystals are substances between bulk materials and molecules, and have optical, electrical, magnetic and catalytic properties. Nanocrystalline materials are easy to aggregate due to their small size and significant surface effects, thus affecting their chemical and physical properties. [0003] Polymer materials are optically transparent, stable chemical and physical properties, adjustable mechanical properties, easy to process and shape, and are excellent inert media for optimizing the function of nanocrystals. [0004] Alkali metal metavanadate nanocrystals have small light scattering, and a single matrix can realize white light, which can effectively solve the problems of low color rende...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/22C03C17/28
Inventor 许并社李洁张树全王莉刘红利王华周禾丰
Owner SHANXI FEIHONG MICRO NANO PHOTOELECTRONICS SCI & TECH
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