Near-infrared high-afterglow material and preparation method thereof

A near-infrared and afterglow technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of short afterglow time and weak afterglow intensity, and achieve the effect of enhanced afterglow intensity, uniform distribution, and improved afterglow performance.
CN107057697AActive Publication Date: 2017-08-18HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2017-08-18

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Abstract

The invention relates to a near-infrared high-afterglow material and a preparation method thereof and aims to solve the technical problem that existing near-infrared long-afterglow materials are weak in afterglow intensity and short in afterglow time. A molecular formula of the near-infrared high-afterglow material is (Zn1-xCax)3(Ga0.995Cr0.005)2G22O10, wherein x is greater than or equal to 0.01 and smaller than or equal to 0.03. The preparation method includes: well mixing zinc oxide, calcium oxide, gallium oxide, chromium oxide and germanium oxide according to a chemical dosage ratio, adding a mixture into water, boiling the water, and adding nitric acid to dissolve the oxides to obtain a solution; mixing the solution with a mixed solution of water, alcohol and oleic acid to obtain a mixed solution, and performing hydrothermal reaction to obtain a solid-phase product; subjecting the solid-phase product to pre-sintering and high-temperature sintering to obtain the near-infrared high-afterglow material. The near-infrared high-afterglow material can be used in the technical field of bioluminescent imaging.
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Description

technical field

[0001] The invention relates to a material with high afterglow performance and a preparation method thereof. Background technique

[0002] Bio-optical imaging technology plays an indispensable role in contemporary medical care. Along with the requirements of high-precision and high-quality bio-optical imaging, many new imaging devices, imaging methods and fluorescent probes are emerging, but now bio-optical The development of imaging is in a bottleneck period, because the shortcomings of traditional fluorescent probes such as photobleaching, luminescence instability, and low signal-to-noise ratio due to tissue autofluorescence effect limit the development of bio-optical imaging, and modern medical optical detection The working area of ​​the fluorescent probe is required to work in the near-infrared region of the biological transmission window (700-1000nm and 1100-1350nm) in order to increase the deep tissue transmittance of the detection light, and use the ne...

Claims

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