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A kind of copper ion doped polychromatic fluorescent glass and its preparation method and application

A technology of fluorescent glass and copper ions, which is applied in glass manufacturing equipment, glass furnace equipment, chemical instruments and methods, and can solve problems such as limited application scenarios

Active Publication Date: 2022-03-15
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently there are literatures (Sr A, Lm A, MR B, et al.Cold bluish white and blue emissions in Cu + -doped zinc phosphate glasses[J].Journal of Luminescence, 217.) reported a fluorescent glass with monovalent copper ions, the fluorescent glass composition is 40% zinc oxide, 60% phosphorus pentoxide and 0.5% chlorination Copper, but from the results, the fluorescent glass only has blue light emission, which limits its application scenarios

Method used

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  • A kind of copper ion doped polychromatic fluorescent glass and its preparation method and application
  • A kind of copper ion doped polychromatic fluorescent glass and its preparation method and application
  • A kind of copper ion doped polychromatic fluorescent glass and its preparation method and application

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Embodiment 1

[0045] This embodiment provides a multicolor fluorescent glass doped with copper ions, the chemical formula of the fluorescent glass is aP 2 o 5 -bSiO 2 -cZnO-dCs 2 CO 3 -eNaCl-fCuCl, its preparation method comprises the steps:

[0046] S1. Weigh P 2 o 5 , SiO 2 , ZnO, Cs 2 CO 3 , NaCl, CuCl and reducing agent, and thoroughly grind and mix for 0.5h;

[0047] S2. Under a reducing atmosphere, melt at 1100°C for 30 minutes;

[0048]S3. Pour into a preheated mold, anneal at 350°C for 2 hours, cool, cut, and polish to obtain copper ion-doped multicolor fluorescent glass. See Table 1 for the specific formula.

Embodiment 2～10

[0050] The embodiment provides a series of copper ion doped fluorescent glasses, the chemical formula of which is aP 2 o 5 -bSiO 2 -cZnO-dCs 2 CO 3 -eNaCl-fCuCl, the preparation method is the same as in Example 1, and the specific formula is shown in Table 1.

[0051] The formula of table 1 embodiment 1~10

[0052]

Embodiment 11～17

[0054] The embodiment provides a series of copper ion doped fluorescent glasses, the chemical formula of which is aP 2 o 5 -bSiO 2 -cZnO-dCs 2 CO 3 -eNaCl-fCuCl, the preparation method is the same as in Example 1, and the specific formula is shown in Table 2.

[0055] The formula of table 2 embodiment 11~17

[0056]

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Abstract

The invention provides a copper ion-doped polychromatic fluorescent glass and its preparation method and application. The chemical formula of the fluorescent glass is as follows: aP 2 o 5 ‑bSiO 2 ‑cZnO‑dCs 2 CO 3 ‑eNaCl‑fCuCl; a, b, c, d, e, f in the formula are the molar coefficients of the compound, wherein a is 45-65, b is 10-30, c is 1-5, and d is 5-20 , e is 5-20, and f is 0.1-5. The fluorescent glass can emit blue light, orange light, and near-infrared light under ultraviolet light, and has better fluorescent quantum efficiency.

Description

technical field [0001] The invention relates to the technical field of LED fluorescent glass, and more particularly relates to a copper ion-doped multicolor fluorescent glass and a preparation method and application thereof. Background technique [0002] As a new type of solid light source, LED has developed into the fourth generation of lighting source because of its high efficiency, environmental protection and energy saving characteristics. However, a large input current will lead to a high junction temperature of the device, which will lead to the aging of LED chips, phosphors and packaging materials, and eventually lead to problems such as reduced luminous efficiency, shortened lifespan, and light color drift of white LED devices. [0003] In the LED field, fluorescent glass is the most potential alternative to phosphor powder and epoxy resin encapsulation. Fluorescent glass not only has the luminescent properties of phosphor powder, but also has the advantages of heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/062C03C4/12C03C6/06C03B5/16C09K11/72H01L33/50
CPCC03C3/062C03C4/12C03C1/00C03B5/16C09K11/727H01L33/504H01L2933/0041Y02B20/00C03B5/06C03B11/122
Inventor 王静司帅晨甘伟江
Owner SUN YAT SEN UNIV
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