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A kind of preparation method of metavanadate nanocrystal/polymer composite fluorescent film

A technology of metavanadate and composite fluorescence, which is applied in the field of preparation of metavanadate nanocrystal/polymer composite fluorescent film, which can solve the problems of serious pollution, cumbersome process, and unstable luminescent performance

Inactive Publication Date: 2011-12-14
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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  • A kind of preparation method of metavanadate nanocrystal/polymer composite fluorescent film
  • A kind of preparation method of metavanadate nanocrystal/polymer composite fluorescent film
  • A kind of preparation method of metavanadate nanocrystal/polymer composite fluorescent film

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Embodiment Construction

[0138] The present invention will be further explained below in conjunction with the drawings:

[0139] figure 1 Shown is the state diagram of polyacrylamide gel. The position of each part should be correct, proportioning according to quantity, and operation in order.

[0140] The chemical materials used in preparation are determined according to the preset range, in grams, milliliters, millimeters, centimeters 3 It is the unit of measurement.

[0141] The invention can also use rubidium nitrate as a raw material to prepare a composite fluorescent film.

[0142] The polyacrylamide gel is carried out in a beaker. The beaker 3 is placed on the electric heater 1, the stirrer 5 is inserted into the beaker 3, and 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 stirrer 5 through wire 4, and mixed solution 2 is in beaker 3.

[0143] figure 2 Shown is the low-temperature ...

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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, belonging to the technical field of preparation and application of organic / inorganic composite luminescent materials. Background technique [0002] Nanocrystalline is a substance between the bulk material and the molecule. It has optical, electrical, magnetic and catalytic properties. Due to its small size, the nanocrystalline material has significant surface effects and is easy to aggregate, thereby affecting its chemical and physical properties. [0003] The polymer material is optically transparent, stable in chemical and physical properties, adjustable in mechanical properties, and easy to process and shape. It is an excellent inert medium for optimizing the function of nanocrystals. [0004] Alkali metal metavanadate nanocrystals have low light scattering, and a single matrix can realize white light, which can effectively solve the problems of low...

Claims

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Application Information

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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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