Europium ion doped light conversion glass and preparation method thereof

A technology of europium ion and glass, which is applied in the field of light conversion glass doped with europium ion and its preparation, can solve the problems of general matching, low light conversion efficiency, and high phonon energy, and achieve easy recycling and high luminous efficiency , good machinability effect

Inactive Publication Date: 2020-08-21
CHINA TRIUMPH INT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN1332126A discloses a light-converting glass with Eu2+ and Eu3+ as co-activators and borate as a matrix. Although this invention can simultaneously convert ultraviolet light into blue light and red-orange light, it can be seen that the light emission wavelength of rare earth ions and Plant chlorophyll absorption wavelength

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  • Europium ion doped light conversion glass and preparation method thereof
  • Europium ion doped light conversion glass and preparation method thereof

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Embodiment 1

[0036] This embodiment provides a preparation method for preparing light-converting glass doped with europium ions. The preparation method includes the following steps:

[0037] S1, Mole ratio 20CaF 2 -5BaF 2-15MgF 2 -25AlF 3 -20SrF 2 -5NaF-3NaPO 3 -3Al(PO 3 ) 3 -4Ba(PO 3 ) 3 The raw materials are configured into basic glass raw materials, and the basic glass raw materials are ground for 24 hours with a ball mill to ensure that the raw materials are fully mixed, and then the basic glass raw materials are melted, clarified and homogenized at a temperature of 1000°C by casting method , so as to obtain the basic glass, and then crush the obtained basic glass to obtain fluorophosphate glass powder;

[0038] S2, weigh CaF 2 45g of powder, 5g of europium fluoride powder and 50g of fluorophosphate glass powder are mixed and configured to form a light-changing glass raw material. The light-changing glass raw material is fully ground for 24 hours with a ball mill to ensure th...

Embodiment 2

[0044] This embodiment provides a preparation method for preparing light-converting glass doped with europium ions. The preparation method includes the following steps:

[0045] S1, Mole ratio 20CaF 2 -5BaF 2 -15MgF 2 -25AlF 3 -20SrF 2 -5NaF-3NaPO 3 -3Al(PO 3 ) 3 -4Ba(PO 3 ) 3 The raw materials are configured into basic glass raw materials, and the basic glass raw materials are ground for 24 hours with a ball mill to ensure that the raw materials are fully mixed, and then the basic glass raw materials are melted, clarified and homogenized at a temperature of 950°C by casting method to obtain the basic glass raw materials. Glass, obtained by crushing the base glass to obtain fluorophosphate glass powder;

[0046] S2, weigh CaF 2 40g of powder, 10g of europium fluoride powder and 50g of fluorophosphate glass powder are mixed and configured to form light-changing glass raw materials. The light-changing glass raw materials are fully ground for 24 hours with a ball mill t...

Embodiment 3

[0050] This embodiment provides a preparation method for preparing light-converting glass doped with europium ions. The preparation method includes the following steps:

[0051] S1, Mole ratio 20CaF 2 -5BaF 2 -15MgF 2 -25AlF 3 -20SrF 2 -5NaF-3NaPO 3 -3Al(PO 3 ) 3 -4Ba(PO 3 ) 3 The raw materials are configured into basic glass raw materials, and the basic glass raw materials are ground for 24 hours with a ball mill to ensure that the raw materials are fully mixed, and then the basic glass raw materials are melted, clarified and homogenized at a temperature of 800°C by casting method , so as to obtain the basic glass, and then crush the obtained basic glass to obtain fluorophosphate glass powder;

[0052] S2, weigh CaF 2 40g of powder, 10g of europium fluoride powder and 50g of fluorophosphate glass powder are mixed and configured to form light-changing glass raw materials. The light-changing glass raw materials are fully ground for 24 hours with a ball mill to ensure ...

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Abstract

The invention provides a europium ion doped light conversion glass and a preparation method thereof. According to the europium ion doped light conversion glass, fluorophosphate glass is used as matrixglass, a first rare earth ion is used as an activating ion, CaF2 microcrystals are uniformly dispersed in the fluorophosphate glass, the first rare earth ion is europium ions in a mixed valence state, the europium ions in the mixed valence state comprise a Eu<2+> ion and a Eu<3+> ion, and the atomic ratio of the first rare earth ion to the CaF2 is 0.1-15.0 at.%. The europium ion doped light conversion glass has higher luminous efficiency, can absorb ultraviolet rays with the waveband of 200-400 nm, and can emit blue light and red orange light with the wavelengths of 402-500 nm and 570-725 nm,and the luminous wavelength range is highly matched with the chlorophyll absorption wavelength.

Description

technical field [0001] The invention relates to a glass, in particular to a light-converting glass doped with europium ions and a preparation method thereof. Background technique [0002] At present, my country's agricultural development is facing problems and challenges such as the deterioration of agricultural resources and environment, frequent occurrence of agricultural natural disasters, expansion of agricultural pest damage, and excessive agricultural energy consumption. All the problems indicate that it is imperative to change the traditional farming methods and develop modern and efficient ecological agriculture. Facility agriculture is one of the important symbols of agricultural modernization, and the development of modern greenhouses meets the objective needs of my country's agricultural production development. [0003] The growth and yield of crops are closely related to sunlight, because chlorophyll (chla, chlb) in plant chloroplasts can perform photosynthesis....

Claims

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Application Information

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IPC IPC(8): C03C4/12C03B19/02C03B32/00
CPCC03C4/12C03B19/02C03B32/00
Inventor 彭寿于浩张正王伟周文彩齐帅李一哲曾红杰张纲魏晓俊王川申
Owner CHINA TRIUMPH INT ENG
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