Long-wave broadband ultraviolet excited multi-functional fluorescent glass and preparation method thereof

A luminescent glass and multi-functional technology, which is applied in the field of multifunctional luminescent glass excited by long-wave broadband ultraviolet light and its preparation, can solve the problems of narrow absorption spectrum, application limitations, and low brightness, and achieve high transparency, high luminous efficiency, and high chemical efficiency. and the effect of optical stability

Inactive Publication Date: 2009-12-30
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the currently synthesized luminescent glass is mainly silicate glass doped with rare earth ions, which has a narrow absorption spectrum and low brightness, which is greatly limited in application.

Method used

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  • Long-wave broadband ultraviolet excited multi-functional fluorescent glass and preparation method thereof
  • Long-wave broadband ultraviolet excited multi-functional fluorescent glass and preparation method thereof
  • Long-wave broadband ultraviolet excited multi-functional fluorescent glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take 0.0035mol 13X type zeolite (Na 2 O·Al 2 o 3 2.8SiO2 2 ·6H 2 O) drop into 30ml of 0.1mol / L EuCl 3 solution, stirred for 1 hour, placed in a water bath at 80°C for 24 hours, centrifuged to remove the supernatant, and dried in an oven at 100°C. The resulting precursor was mixed with 0.4211gSiO 2 After fully mixing, put it into a 30mL crucible, place it in a high-temperature furnace and sinter at 1500°C for 8 hours to obtain the target product. Its composition is determined by elemental analysis (ICP): SiO 2 0.21Al 2 o 3 0.08Eu 2 o 3 , has high transparency, and emits red light under 380nm ultraviolet light.

Embodiment 2

[0028] Take 0.0035mol 13X type zeolite Na 2 O·Al 2 o 3 2.8SiO2 2 ·6H 2 O into 30ml of 0.5mol / L EuCl 3 solution, stirred for 1 hour, placed in a water bath at 80°C for 20 hours, centrifuged to remove the supernatant, and dried in an oven at 100°C. The resulting precursor was mixed with 0.4211g SiO 2 After fully mixing, put it into a 30mL crucible, place it in a high-temperature furnace and sinter at 1450°C for 10 hours to obtain the target product. Its composition was determined by elemental analysis (ICP), and its composition was SiO 2 0.21Al 2 o 3 0.12Eu 2 o 3 , Under the irradiation of 380nm ultraviolet light, it emits red light.

Embodiment 3

[0030] Take 0.004mol 4A type zeolite Na 2 O·Al 2 o 3 2SiO2 2 4.5H 2 O into 30ml of 0.1mol / L EuCl 3 solution, stirred for 1 hour, placed in a water bath at 80°C for 24 hours, centrifuged to remove the supernatant, and dried in an oven at 100°C. The resulting precursor was mixed with 0.004mol SiO 2 After fully mixing, put it into a 30mL crucible, place it in a high-temperature furnace and sinter at 1450°C for 10 hours to obtain the target product. Its composition was determined to be SiO by elemental analysis (ICP) 2 0.33Al 2 o 3 0.11Eu 2 o 3 , Under the irradiation of 380nm ultraviolet light, it emits red light.

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Abstract

The invention relates to a long-wave broadband ultraviolet excited multi-functional fluorescent glass and a preparation method thereof; the glass comprises SiO2-aAl2O3-bB2O3-cRexOy; wherein, x=1 or 2, y=1 or 3, A=0.05 to 5, B=0 to 2.5, C=0.01 to 0.2 and x, y, A, B and C are molar ratio; RexOy is EuO, Eu2O3 or Tb2O3. By using the preparation method of the invention, high transparent multi-functional fluorescent glass can be prepared under a simpler process conditions, the fluorescent glass has very strong 250nm-420nm of ultraviolet light absorption capacity and the emission of red, green, blue and white lights can be realized by regulating the production process. The fluorescent glass can be used as the source of three primary colours in the white light light-emitting diode (LED), the laser diode (LD) and the displays and is likely to be used in ultra large screen color displays.

Description

technical field [0001] The invention relates to the technical field of luminescent materials, in particular to a long-wave broadband ultraviolet excited multifunctional luminescent glass and a preparation method thereof. Background technique [0002] Glass has a series of characteristics such as uniformity, transparency, hardness, good corrosion resistance, electricity, and optics. It can be made into products of various shapes and sizes by various forming and processing methods. Its properties can be changed by adjusting the chemical composition. Adapt to different usage requirements. Many key optoelectronic components in the modern information industry, such as storage display devices, amplification devices, display devices, etc., are made of glass with special optical functions. In addition, because its special network structure is near-ordered and long-range disordered, the doping dispersion of rare earth ions in the glass is relatively good, and the luminescence is ver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/04C03C4/12
Inventor 余锡宾杨绪勇周永勤
Owner SHANGHAI NORMAL UNIVERSITY
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