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Three-dimensional ordered porous up-conversion luminescent material with Y2Si2O7 as substrate, and preparation method thereof

A three-dimensional ordered, light-emitting material technology, applied in the field of up-conversion light-emitting, can solve the problem of single matrix, and achieve the effect of simple preparation method, high repeatability and good chemical stability

Inactive Publication Date: 2012-06-27
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to overcome the problem that the three-dimensional ordered macropore up-conversion luminescent material matrix is ​​relatively single, the present invention provides a Y 2 Si 2 o 7 The three-dimensional ordered porous up-conversion luminescent material as a matrix and its preparation method are realized by the following technical solutions

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  • Three-dimensional ordered porous up-conversion luminescent material with Y2Si2O7 as substrate, and preparation method thereof

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Embodiment 1

[0020] (1) Will Er 2 o 3 , Yb 2 o 3 , Y 2 o 3 respectively dissolved in commercially available concentrated nitric acid with a mass fraction of 65%, and then evaporated to dryness at 100°C to form dry yttrium nitrate, erbium nitrate and ytterbium nitrate;

[0021] (2) Dissolve commercially available ethyl orthosilicate, yttrium nitrate, erbium nitrate and ytterbium nitrate obtained in step (1) respectively in commercially available absolute ethanol, according to the molar ratio of Y ions, Si ions, Yb ions and Er ions 1:1:0.1:0.05 Take the above four solutions and mix them evenly to obtain the precursor solution;

[0022] (3) per cm 2 Add 1mL of precursor solution to the ordered array template dropwise, fill the precursor solution obtained in step (2) into the ordered array template, and then calcinate at 950°C for 3 hours to obtain Yb, Er co-doped with Y 2 Si 2 o 7 It is a three-dimensional ordered porous up-conversion luminescent material as a matrix; the ordered arr...

Embodiment 2

[0025] (1) Will Er 2 o 3 , Yb 2 o 3 , Y 2 o 3 respectively dissolved in commercially available concentrated nitric acid with a mass fraction of 65%, and then evaporated to dryness at 100°C to form dry yttrium nitrate, erbium nitrate and ytterbium nitrate;

[0026] (2) Dissolve commercially available ethyl orthosilicate, yttrium nitrate, erbium nitrate and ytterbium nitrate obtained in step (1) respectively in commercially available absolute ethanol, according to the molar ratio of Y ions, Si ions, Yb ions and Er ions 1:1:0.05:0.05 Take the above four solutions and mix them evenly to obtain the precursor solution;

[0027] (3) per cm 2 Add 0.05mL of precursor solution dropwise to the ordered array template, fill the precursor solution obtained in step (2) into the ordered array template, and then calcinate at 1000°C for 3 hours to obtain Yb and Er co-doped Y 2 Si 2 o 7 It is a three-dimensional ordered porous up-conversion luminescent material as a matrix; the ordered ...

Embodiment 3

[0030] (1) Take commercially available yttrium nitrate, erbium nitrate and ytterbium nitrate;

[0031] (2) Dissolve commercially available ethyl orthosilicate, yttrium nitrate, erbium nitrate and ytterbium nitrate obtained in step (1) respectively in commercially available absolute ethanol, according to the molar ratio of Y ions, Si ions, Yb ions and Er ions 1:1:0.01:0.01 Take the above four solutions and mix them evenly to obtain the precursor solution;

[0032] (3) per cm 2 Add 3 mL of precursor solution to the ordered array template dropwise, fill the precursor solution obtained in step (2) into the ordered array template, and then calcinate at 900 °C for 3 hours to obtain Yb, Er co-doped with Y 2 Si 2 o 7 It is a three-dimensional ordered porous up-conversion luminescent material as a matrix; the ordered array template is a unitary ordered opal template prepared by using microspheres and a substrate according to a conventional method, wherein the microsphere is a polyst...

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Abstract

The invention relates to a three-dimensional ordered porous up-conversion luminescent material with Y2Si2O7 as a substrate, and a preparation method thereof. According to the invention, yttrium nitrate, tetraethoxysilane, erbium nitrate, and ytterbium nitrate are respectively dissolved in dehydrated alcohol; the four solutions are well mixed according to a molar ratio of Y ion to Si ion to Yb ion to Er ion of 1:1:0.01-0.2:0.01-0.2, such that a precursor solution is obtained; the precursor solution is filled into an ordered array template; the template is calcined, such that the Yb and Er co-doped three-dimensional ordered porous up-conversion luminescent material with Y2Si2O7 as the substrate is obtained. In the material, a molar ratio of Y2Si2O7 to Yb ion to Er ion is 1:0.01-0.2:0.01-0.2. Under the excitation of 980nm lasers, relatively strong up-conversion emission is provided. The material is advantaged in high reusability, simple preparation method, and good substrate material chemical stability.

Description

technical field [0001] The present invention relates to a kind of Y 2 Si 2 o 7 The invention relates to a three-dimensional ordered porous up-conversion luminescent material as a matrix and a preparation method thereof, belonging to the technical field of up-conversion luminescence. Background technique [0002] Up-conversion luminescence refers to the generation of short-wavelength light emission under the excitation of long-wavelength light during the excitation process of photoluminescence. Up-conversion luminescence has broad application prospects in fluorescent probes, biomarkers, laser technology, optical fiber communication technology, optical fiber amplifiers, three-dimensional display, infrared detection technology and anti-counterfeiting. [0003] In addition to the characteristics of general porous materials, three-dimensional ordered macroporous (pore diameter greater than 50nm) materials also have the advantages of regular and orderly arrangement of pores, st...

Claims

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Application Information

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IPC IPC(8): C09K11/79
Inventor 杨正文邱建备宋志国周大成尹兆益
Owner KUNMING UNIV OF SCI & TECH
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