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A YB-sensitized environment-friendly germanium tellurate luminescent glass and its preparation method

A luminescent glass, an environmentally friendly technology, applied in the field of material science, can solve the problems of no absorption band and unusability, and achieve the effects of easy pouring, improved thermal properties, and lower melting temperature

Active Publication Date: 2019-10-25
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some rare earth luminescent ions such as Tm, Ho, Dy and Pr have no obvious absorption band near 980nm, so they cannot be pumped by common 980nm semiconductor lasers.

Method used

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  • A YB-sensitized environment-friendly germanium tellurate luminescent glass and its preparation method
  • A YB-sensitized environment-friendly germanium tellurate luminescent glass and its preparation method
  • A YB-sensitized environment-friendly germanium tellurate luminescent glass and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: a kind of traditional germanate glass

[0030] A kind of traditional germanate glass, raw material composition is as shown in 1# in table 1;

[0031] Concrete preparation process is as follows:

[0032] According to the mass percent of 1# glass composition in Table 1, calculate the corresponding weight of each composition, and take by weighing each raw material component;

[0033] Pour the uniformly mixed raw materials into a platinum crucible, and move it into a constant temperature and humidity furnace with a relative humidity of less than 2%. First, heat up to 500°C at a rate of 10°C / min, and then continue to heat up at a rate of 5°C / min. to 1000°C, during which they were respectively kept at 800°C, 900°C, and 1000°C for 15 minutes, and then melted in a silicon carbide rod electric furnace at 1400°C for 20 minutes. Inject high-purity oxygen with a purity greater than 99.95%, homogenize and clarify to obtain a uniform glass liquid without bubbles; pour...

Embodiment 2

[0038] Embodiment 2: a kind of traditional germanium tellurite glass

[0039] A kind of traditional germanium tellurite glass, the composition of raw materials is as shown in 2# in Table 1;

[0040] Concrete preparation process is as follows:

[0041]According to the mass percentage that 2# glass forms among the table 1, calculate the corresponding weight of each composition, and take each raw material component;

[0042] Pour the raw materials into a platinum crucible and move it into a constant temperature and humidity furnace with a relative humidity of less than 2%. First, heat up to 500°C at a rate of 10°C / min, and then continue to heat up to 1000°C at a rate of 5°C / min. During the period, they were respectively kept at 800°C, 900°C, and 1000°C for 15 minutes, and then melted in a silicon carbide rod electric furnace at 1300°C for 20 minutes. 99.95% high-purity oxygen, homogenized and clarified to obtain a uniform glass liquid without bubbles; pour the glass liquid into...

Embodiment 3

[0048] Embodiment 3: a kind of environment-friendly germanium tellurate glass

[0049] An environment-friendly germanium tellurate glass, the raw material composition is as shown in 3# in Table 1;

[0050] Concrete preparation process is as follows:

[0051] Mo-V-Te-Nb-O catalyst uses ammonium molybdate, ammonium metavanadate, telluric acid and niobium oxalate as raw materials, and the molar ratio of its active components is Mo:V:Te:Nb=1:0.3: 0.23:0.12. The raw materials were weighed according to the molar ratio of the active components, and the niobium oxalate was configured into an 8mg / mL aqueous solution for use. The volume is 110 times of the total mass of ammonium molybdate, ammonium metavanadate, and telluric acid. Rotate and heat to 80°C to completely dissolve it, and obtain a clear and transparent orange-yellow solution. After 0.5 hours, lower the temperature to 30°C, add niobium oxalate solution, and the solution gradually becomes cloudy. After rotating for 2 hour...

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Abstract

The invention belongs to the technical field of material science, and particularly relates to Yb-sensitized environment-friendly germanium tellurite luminescent glass and a preparation method of the luminescent glass. The glass is prepared from the following raw materials: GeO2, a Mo-V-Te-Nb-O catalyst waste material, Na2O, BaF2, YbF3 or Yb2O3, and MF3 or M2O3, wherein the M is a rare-earth light-emitting ion. According to the invention, the Mo-V-Te-Nb-O catalyst waste material is used for replacing tellurium oxide, and the problem that the mechanical property of the germanium tellurite glassis reduced due to the tellurium oxide can be effectively improved while the melting temperature is reduced. Good visible, near-infrared and mid-infrared fluorescent lights can be obtained by using theobtained rare-earth-doped environment-friendly germanium tellurite glass under the pumping of a laser diode with a wavelength of 980 nm, and meanwhile, the physical and chemical properties are excellent, the thermal stability is good, the parameter delta T is larger than or equal to 170 DEG C, and the Vickers hardness of the glass is larger than 680 kgf / mm<2>.

Description

Technical field: [0001] The invention belongs to the technical field of material science, and in particular relates to a Yb-sensitized environment-friendly germanium tellurate luminescent glass and a preparation method thereof. Background technique: [0002] Germanate glass has good thermal stability and chemical durability, and has the advantages of wide fluorescent linewidth, high solubility of rare earth ions, wide infrared transmission range (6 μm), and good glass-forming performance. However, its forming temperature is high, and a large amount of germanium oxide precious metal raw materials is used, which greatly increases the production cost and limits its commercialization process. Adding an appropriate amount of tellurium oxide compound to the germanate glass system can reduce the phonon energy and melting temperature of the germanate glass matrix, while retaining the good mid-infrared luminescence characteristics and glass-forming properties of germanate, but the te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C6/06C03C4/12C03C1/02C03C3/253
Inventor 田颖张军杰井绪峰刘群获李环环李兵朋黄飞飞徐时清
Owner CHINA JILIANG UNIV
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