Nitrogen carbide quantum dot fluorescence ink

A quantum dot and nitrogen carbide technology, applied in the field of nitrogen carbide quantum dot fluorescent ink, can solve the problems of incomplete information protection and anti-counterfeiting, invisible, etc., and achieve the effects of easy operation, good effect and strong fluorescence characteristics.
CN104861784AActive Publication Date: 2015-08-26FUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FUZHOU UNIV
Publication Date
2015-08-26

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Abstract

The invention discloses nitrogen carbide quantum dot fluorescence ink. By virtue of a hydrothermal synthesis method, a colorless and transparent nitrogen solution with strong fluorescence characteristics is prepared, and nitrogen carbide quantum dots of the water solution are uniform in shape and controllable in size; a maximal fluorescence-emission peak can be detected at 368 nanometers by virtue of excitation of a 250-nanometer wavelength, and most emission peaks are projected to invisible regions; when the nitrogen carbide quantum dot fluorescence ink is applied to encrypted storage protection of fluorescence information, the encrypted information cannot be read by virtue of ultraviolet color development, and fluorescence signals can be converted into readable information by virtue of a specific instrument. Compared with a traditional method, the method has the advantages that read equipment is relatively specific, and the information encryption is relatively strong.
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Description

technical field

[0001] The invention belongs to the field of nano fluorescent materials, in particular to a nitrogen carbide quantum dot fluorescent ink. Background technique

[0002] In recent years, nano-fluorescent materials have been widely used as fluorescent inks in product anti-counterfeiting, important document protection, and information encryption. Among the published patents related to nanomaterials used as fluorescent inks, carbon nanomaterials (201310036988.2, 201410479599.1), nitrogen-doped carbon nanomaterials (201310036988.2), up-conversion fluorescent nanomaterials (201410718694.2), transition metal nanomaterials (201210168204.7), etc. Their nano-fluorescence emission spectrum mainly falls in the visible region, so when these materials are used as fluorescent inks to transmit information and anti-counterfeiting, the information is invisible under ordinary light, and can only be read in a specific ultraviolet environment. Information, so as to achieve the ef...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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