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Fluorescent material

A fluorescent material and spectrum technology, applied in the field of fluorescent materials, can solve problems such as energy loss

Inactive Publication Date: 2020-12-22
BELL NEW CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, because a certain proportion of the wavelength of the emitted light provided by the halogen lamp will fall outside the near-infrared region, it will cause energy loss

Method used

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  • Fluorescent material
  • Fluorescent material

Examples

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Embodiment 1

[0023] Synthetic La 3 Ga 5 GeO 14 :0.01Sn 4+ ,0.05Cr 3+ Fluorescent material: put lanthanum oxide, germanium oxide, chromium oxide, gallium oxide, and tin dioxide into a ball mill according to the ratio of the above chemical formula, and add an appropriate amount of ethanol as a medium to assist in mixing. Then, use a ball mill to grind and mix for about 8 to 10 hours, and then dry the obtained mixed slurry to obtain a precursor powder. Then, put the above-mentioned precursor powder into a high-temperature furnace, and perform calcination at a holding temperature of about 1300° C. for about 4 hours. The ambient gas during calcination is air, and the fluorescent material La of Example 1 is obtained. 3 Ga 5 GeO 14 :0.01Sn 4+ ,0.05Cr 3+ .

[0024] figure 1 It is the radiation spectrum diagram obtained by exciting the fluorescent material of Example 1 with blue light with a wavelength of 460nm, the ordinate is the radiation intensity, and the abscissa is the radiation wa...

Embodiment 2

[0026] Synthetic La 3 Ga 5 GeO 14 :0.04Sn 4+ ,0.05Cr 3+ Fluorescent material: put lanthanum oxide, germanium oxide, chromium oxide, gallium oxide, and tin dioxide into a ball mill according to the ratio of the above chemical formula, and add an appropriate amount of ethanol as a medium to assist in mixing. Then, use a ball mill to grind and mix for about 8 to 10 hours, and then dry the obtained mixed slurry to obtain a precursor powder. Then, put the above-mentioned precursor powder into a high-temperature furnace, and perform calcination at a holding temperature of about 1300° C. for about 4 hours. The ambient gas during calcination is air, and the fluorescent material La of Example 2 is obtained. 3 Ga 5 GeO 14 :0.04Sn 4+ , 0.05Cr 3+ .

[0027] figure 2 It is the emission spectrum diagram obtained by exciting the fluorescent material of Example 2 with blue light with a wavelength of 460 nm, the ordinate is the intensity of the radiated light, and the abscissa is th...

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Abstract

The invention discloses a fluorescent material; the chemical formula of the fluorescent material is expressed as La3Ga5GeO14: xSn<4+>,yCr<3+>, wherein x is a numerical value from 0.005 to 0.1, and y is a numerical value from 0.01 to 0.2. According to various embodiments of the invention, the fluorescent material has a special characteristic of emitting light, and the fluorescent material is excited by exciting light with the wavelength of 460 nm, so that the fluorescent material can emit a radiation spectrum of a near-infrared light section.

Description

technical field [0001] The invention relates to a fluorescent material, in particular to a broadband near-infrared fluorescent material. Background technique [0002] Near-infrared light generally refers to electromagnetic waves with a wavelength between 780nm and 1400nm. Near-infrared light has been widely used in the detection of agricultural, fishery and animal husbandry products in recent years due to its fast, accurate, online or remote detection, high penetration, high sensitivity to heat sources, and non-destructive detection advantages. In addition, it is also used in industrial fields such as petrochemical industry, environmental protection industry, biomedicine, semiconductor industry and so on. [0003] Because halogen lamps are readily available and inexpensive, and can provide high-intensity continuous emission of near-infrared light, they are most commonly used with infrared filters to provide near-infrared light sources. However, when the halogen lamp is use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/80
CPCC09K11/7701
Inventor 江德生
Owner BELL NEW CERAMICS
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