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Nanometer material with convertible color and preparing method thereof

A technology of nano-materials and nano-luminescent materials, which is applied in the field of nano-materials for color up-conversion and its preparation, which can solve problems such as high cost, affecting the use of luminescent materials, and complex process, and achieve low cost, small particle size, and simple process Effect

Inactive Publication Date: 2007-12-12
郑岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing manufacturing processes of up-conversion luminescent materials adopt the traditional process method, the process is complicated, the cost is high, and the particle size of the prepared materials is about 10-50 microns, and the larger particle size affects the application field of luminescent materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] take Y 2 o 3 60g, Yb 2 o 3 35g and Er 2 o 35g, mix and grind all the components evenly, put it into the furnace at 350°C, sinter for 1 hour, then raise the temperature to 650°C at a rate of 10°C / hour, sinter for 4 hours to make a sintered body, and grind the powder to make a nano-powder material , with a particle size of 300 nm. The material emits green visible light when excited by an infrared emitter.

Embodiment 2-5

[0027] The process of Example 1 was repeated, except that raw materials with different compositions and weights were used, and the conditions of each example are listed in Table 1 below.

[0028] Table 1

[0029] Example 2

Embodiment 6

[0031] take Y 2 o 3 70g, Yb 2 o 3 25g and Er 2 o 3 5g, mix and grind each component evenly, put it into the furnace at 500°C, sinter for 2 hours, heat up to 900°C at a rate of 50°C / hour, sinter for 1 hour, heat up to 1300°C, and sinter for 2 hours to make a sintered body. Grinding and crushing to make nano powder material, the particle size is 900 nanometers. The material emits red visible light when excited by an infrared light emitter.

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PUM

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Abstract

The invention provides a color upper conversion nano material and method for preparation, wherein the nano material comprises one or more ground substance selected from the oxide and inorganic salt of yttrium, gadolinium and lanthanum, one or more activating agents selected from the oxide and inorganic salt of yttrium and thulium, one or more coactivator selected from the oxide and inorganic salt of erbium, holmium, cerium, praseodymium and magnesium, the granularity of the material is 50-900 nm. The nano material provided by the invention has strong stableness, it is easy to integrate with biochemical antibody, thus can be utilized for the quick detection of various viruses and bacteria.

Description

technical field [0001] The invention relates to a color up-conversion nano material and a preparation method thereof, in particular to a color up-conversion nano material containing various rare earth element compounds and a preparation method thereof. Background technique [0002] First of all, the term "color up-conversion" or "up-conversion luminescent" material used herein refers to a material that can convert invisible infrared light into visible light such as red, green or blue light under the irradiation of infrared laser light. [0003] When detecting organisms, it is often necessary to use ultraviolet light and infrared light to excite markers. When the fluorescent marker is excited by ultraviolet light, it will cause damage to the detected biological samples such as cells and DNA. Furthermore, traditional particle markers such as colloidal gold, colored gel, C particles, etc. must be combined with the target substance to achieve a large enrichment degree in the de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K9/00
Inventor 郑岩侯秀杰费运启
Owner 郑岩