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NV color center luminescence nano-diamond/tellurium germanate composite glass and preparation method thereof

A technology of nano-diamond and germanate telluride, which is applied in glass manufacturing equipment, diamond, glass forming, etc., can solve the problems of harming the body and the environment, occupying space, etc., and achieves low melting temperature, high uniformity, and transparent high rate effect

Active Publication Date: 2018-02-02
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The denitrification catalyst after a large amount of use becomes waste, which not only takes up a lot of space, but also contains vanadium and other elements that are harmful to the body and the environment

Method used

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  • NV color center luminescence nano-diamond/tellurium germanate composite glass and preparation method thereof
  • NV color center luminescence nano-diamond/tellurium germanate composite glass and preparation method thereof
  • NV color center luminescence nano-diamond/tellurium germanate composite glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: a kind of tellurite glass;

[0030] A kind of tellurate 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] Grind the raw materials evenly to form a mixture, put it into a gold crucible, and place it in a silicon carbide rod electric furnace at 800°C for 30 minutes to obtain molten glass, and then cool it down to 430°C at a rate of 11°C / hour; The molten glass is homogenized and clarified, and then quickly poured onto a mold that has been preheated to 370°C, and then placed in a muffle furnace that has been heated to 370°C. Cool down to 110°C at a rate of 1 hour, then close the muffle furnace, and cool down to room temperature.

[0034] The test results on the glass are as follows:

[0035] ① Process the ...

Embodiment 2

[0038] Embodiment 2: a kind of germanate tellurite glass;

[0039] A kind of germanate 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] Grind the raw materials evenly to form a mixture, put it into a gold crucible, and put it in a silicon carbide rod electric furnace at 900 ° C for 30 minutes to obtain molten glass, and then quickly pour it into a mold that has been preheated to 450 ° C. Then put it into the muffle furnace that has been heated to 460°C, keep it warm for 3 hours, then cool it down to 110°C at a rate of 11°C / hour, then close the muffle furnace, and cool down to room temperature.

[0043] The test results on the glass are as follows:

[0044] ① The germanate tellurite composite glass prepared in thi...

Embodiment 3

[0047] Embodiment 3: a kind of nano-diamond / germanium tellurate composite glass;

[0048] A nano-diamond / germanate tellurite composite glass, the composition of raw materials is as shown in 3# in Table 1;

[0049] Concrete preparation process is as follows:

[0050] According to the mass percent that 3# glass forms among the table 1, calculate the corresponding weight of each composition, and take each raw material component;

[0051] Under the pumping of a 532nm semiconductor laser, the nano-diamond was tested, and the luminescence of the NV color center was not obtained at 500nm-800nm.

[0052] Vacuum-encapsulate the nano-diamond in a quartz test tube, put it into a high-temperature furnace that has been heated to 750°C, and keep flowing high-purity nitrogen gas during the heating process. After keeping the temperature for 2 hours, cool it down to 90°C at a rate of 150°C / hour. Then close the high-temperature furnace and cool down to room temperature;

[0053] Under the pu...

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Abstract

The invention discloses NV color center luminescence nano-diamond / tellurium germanate composite glass which comprises TeO2, GeO2, ZnO, denitration catalyst waste, Na2O and nano-diamond. The NV color center luminescence nano-diamond / tellurium germanate composite glass is prepared by first high-temperature annealing of the nano-diamond to obtain a NV color center and segmented melting. The compositeglass has strong NV color center luminous intensity and low glass melting temperature, the glass transition temperature is 341 to 380 DEG C, the glass refractive index is (2.30-2.34) and is close tothe diamond refractive index, the composite glass has good thermal stability, and is very promising high optical quality glass; the denitration catalyst waste is used to enhance the hardness of the glass and improve the thermal stability of the glass, the preparation method is simple, and short in cycle, and the concentration of the doped nano-diamond is large, the NV color center luminescence nano-diamond / tellurium germanate composite glass is expected to be applied to quantum communication devices based on the NV color center and various highly sensitive physical quantity detectors, and integrated application may be realized.

Description

technical field [0001] The invention relates to a nano-diamond / germanate tellurite composite glass with NV color center luminescence and a preparation method thereof, which is expected to be applied to quantum communication devices based on NV color centers and various high-sensitivity physical quantity detectors. Background technique [0002] When a nitrogen atom replaces a carbon atom in diamond and captures a hole around it, a stable structure will be formed, called NV color center (Nitrogen Vacancy center). The NV color center has a stable energy level structure and can emit fluorescence. Compared with bulk diamond samples, nanodiamonds containing NV color centers have unique advantages in application. The luminescence of the NV color center in nanodiamond is extremely stable around 600-800nm, without photobleaching and light flickering, long coherence and relaxation time, excellent biocompatibility, small size, great flexibility, and can be combined with other optical s...

Claims

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Application Information

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IPC IPC(8): C03C14/00C03C6/00C03B5/02C03B19/02C01B32/28C03C3/253
CPCC03B5/02C03B19/02C03C1/002C03C3/253C03C14/004C03C2214/04C03C2214/30
Inventor 田颖井绪峰张军杰刘群获李兵朋黄飞飞李环环徐时清
Owner CHINA JILIANG UNIV
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