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Method for quickly preparing ultraviolet phosphors

An ultraviolet light and phosphor technology, applied in chemical instruments and methods, luminescent materials, etc., can solve the problems of difficult up-conversion luminescence and high phonon energy, and achieve excellent luminescence performance, small powder particle diameter, and less equipment. Effect

Active Publication Date: 2012-11-14
SHANXI FEIHONG MICRO NANO PHOTOELECTRONICS SCI & TECH
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Problems solved by technology

[0003] At present, China is also researching and developing up-conversion luminescent materials. Although oxide up-conversion luminescent materials have the advantages of simple preparation process, low environmental conditions and high stability, due to their high phonon energy, it is difficult to achieve high efficiency. Based on these characteristics of oxide up-conversion luminescent materials, most of them use fluoride or oxyfluoride as the matrix material at present.

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  • Method for quickly preparing ultraviolet phosphors
  • Method for quickly preparing ultraviolet phosphors
  • Method for quickly preparing ultraviolet phosphors

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with accompanying drawing:

[0050] figure 1 As shown, it is the calcination state diagram of the tube-type high-temperature furnace, and the positions of each part must be correct, proportioned according to the quantity, and operated according to the needs.

[0051] The amount of the chemical substance required for the preparation is determined according to the preset range, and the unit of measurement is gram. When it is produced industrially, the unit of measurement is kilogram.

[0052] The calcination of ultraviolet phosphor is carried out in a tube high temperature furnace. The tube high temperature furnace 1 is horizontal, and the middle position of the tube high temperature furnace 1 is a quartz tube 2, and the track of the quartz tube 2 in the tube high temperature furnace 1 3, the upper part of the tubular high-temperature furnace 1 is a resistance heater 5, the lower part is a furnace seat ...

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Abstract

The invention relates to a method for quickly preparing ultraviolet phosphors. The method comprises the following steps of: adopting aluminum fluoride, ytterbium fluoride and thulium fluoride as raw materials, mixing, calcining, grinding, sieving and detecting so as to finally prepare an ultraviolet phosphors product, which can emit ultraviolet. The preparation method has short process flow, use equipment is less, the environment can not be polluted, the product has high purity reaching to 96.7 percent, a particle diameter of powder is small and is less than or equal to 38 mum, the luminescence property is good, the ultraviolet phosphors can light on a blue light, a green light and a red light in a conversion manner, and the method is a very ideal method for quickly preparing ultraviolet phosphors excited by infrared light.

Description

technical field [0001] The invention relates to a method for rapidly preparing ultraviolet light fluorescent powder, which belongs to the technical field of rare earth preparation and application of luminescent materials. Background technique [0002] Infrared up-conversion luminescent material is a material that can emit visible light under the excitation of infrared light. It has good application prospects in the fields of printing anti-counterfeiting, three-dimensional display, short-wave solid-state laser, infrared radiation detection and biomarking. [0003] At present, China is also researching and developing up-conversion luminescent materials. Although oxide up-conversion luminescent materials have the advantages of simple preparation process, low environmental conditions and high stability, due to their high phonon energy, it is difficult to achieve high efficiency. Based on these characteristics of oxide up-conversion luminescent materials, most of them use fluorid...

Claims

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Application Information

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IPC IPC(8): C09K11/85
Inventor 许并社张树全王华周禾丰李洁彭少鹏吴文质
Owner SHANXI FEIHONG MICRO NANO PHOTOELECTRONICS SCI & TECH
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