Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of rare earth doped SiO*substrate luminescent film

A luminescent thin film and rare earth doping technology, which is applied in the direction of luminescent materials, chemical instruments and methods, solid-state chemical plating, etc., can solve the problems of undiscovered luminescent thin film materials, achieve non-toxic raw materials, easy access to raw materials, and low synthesis temperature Effect

Inactive Publication Date: 2009-09-23
NORTHWEST UNIV(CN)
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rare earth doped SiO has not been found so far 2 Related reports on luminescent thin film materials as the main body of the matrix

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: prepare Tb 3+ :SiO2 2 Green Luminous Film

[0016] The raw materials used are as follows:

[0017] Orthoethyl silicate (TEOS) 15.1ml

[0018] Absolute ethanol (C 2 h 5 OH) 32.6ml

[0019] Deionized water (H 2 O) 2.5ml

[0020] Boric acid (H 3 BO 3 ) 0.8657g

[0021] Aluminum nitrate (Al(NO 3 ) 3 9H 2 O) 0.0526g

[0022] Terbium nitrate (Tb(NO 3 ) 3 ·5H 2 O) 0.1523g

[0023] The preparation process is as follows:

[0024] 1) Slowly mix 15.1ml tetraethyl orthosilicate and 16.3ml deionized ethanol, and stir magnetically for 30 minutes to obtain a uniformly mixed solution A; then accurately measure 16.3ml deionized ethanol, 2.5ml deionized water, 0.8657 g boric acid was mixed and stirred for 0.5h to obtain solution B; then solution A and B were mixed and stirred for 1 hour, and the pH value was adjusted to 2-3 with concentrated hydrochloric acid;

[0025] 2) Heat the above solution to 70°C, add 0.0526g of aluminum nitrate to it, stir in a s...

Embodiment 2

[0027] Embodiment 2: Preparation of Eu 3+ :SiO2 2 red luminescent film

[0028] The raw materials used are as follows:

[0029] Orthoethyl silicate (TEOS) 13.4ml

[0030] Absolute ethanol (C 2 h 5 OH) 14.0ml

[0031] Deionized water (H 2 O) 2.2ml

[0032] Boric acid (H 3 BO 3 ) 0.7420g

[0033] Aluminum nitrate (Al(NO 3 ) 3 9H 2 O) 0.0450g

[0034] Europium nitrate (Eu(NO 3 ) 3 ·5H 2 O) 0.1284g

[0035] The preparation process is as follows:

[0036] 1) Slowly mix 13.4ml tetraethyl orthosilicate and 7.0ml absolute ethanol, and stir magnetically for 30 minutes to obtain a uniformly mixed solution A; then accurately measure 7.0ml absolute ethanol, 2.2ml deionized water, 0.7420 g boric acid was mixed and stirred for 0.5h to obtain solution B; then solution A and B were mixed and stirred for 1 hour, and the pH value was adjusted to 2-3 with concentrated hydrochloric acid;

[0037] 2) Heat the above solution to 70°C, add 0.0450g of aluminum nitrate to it, stir i...

Embodiment 3

[0039] Embodiment 3: Preparation of Eu 2+ :SiO2 2 blue luminescent film

[0040] The raw materials used are as follows:

[0041] Orthoethyl silicate (TEOS) 13.4ml

[0042] Absolute ethanol (C 2 h 5 OH) 21.0ml

[0043] Deionized water (H 2 O) 2.2ml

[0044] Boric acid (H 3 BO 3 ) 0.7420g

[0045] Aluminum nitrate (Al(NO 3 ) 3 9H 2 O) 0.0450g

[0046] Europium nitrate (Eu(NO 3 ) 3 ·5H 2 O) 0.1284g

[0047] The preparation process is as follows:

[0048] 1) First, mix 13.4ml tetraethyl orthosilicate and 10.5ml absolute ethanol slowly, and after 30 minutes of magnetic stirring, a uniformly mixed solution A is obtained; then accurately measure 10.5ml absolute ethanol, 2.2ml deionized water, 0.7420 g boric acid was mixed and stirred for 0.5h to obtain solution B; then solution A and B were mixed and stirred for 1 hour, and the pH value was adjusted to 2-3 with concentrated hydrochloric acid;

[0049] 2) Heating the above solution to 70°C, adding 0.0450g of aluminum...

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
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a rare earth doped SiO*substrate luminescent film, which comprises the following steps: firstly, dissolving ethyl orthosilicate Si(C2H5O)4 into ethanol or propanol; secondly, mixing the solution with ethanol or propanol water solution of boric acid; thirdly, adding hydrochloric acid or glacial acetic acid to adjust the pH value to 2-3; fourthly, adding aluminum soluble salt into the solution; fifthly, adding soluble rare-earth salts; sixthly, ageing to obtain gum, preparing the film, and calcining the film under 500-1500 DEG C to obtain the luminescent film. The luminescent film prepared by the invention has uniform and compact surface without cracking, and controllable thickness; and the size of the film particles is 1-50nm. The preparation method has simple process without vacuum equipment, low cost, and easy material obtaining and innocuity.

Description

technical field [0001] The invention relates to the technical field of inorganic luminescent material synthesis, in particular to a rare earth-doped SiO 2 The preparation method of matrix luminescent thin film. Background technique [0002] Luminescent film is an important functional material. Compared with traditional luminescent powder, luminescent film shows strong advantages in contrast, resolution, heat conduction, uniformity, adhesion to substrate, outgassing rate, etc. , It is widely used in color TV, picture tube, computer monitor, lighting, medicine, nuclear physics and radiation field, military and other fields. Therefore, it is of great significance to prepare luminescent films with good performance. Existing preparation methods of luminescent thin films include magnetron sputtering, chemical vapor deposition, excimer laser deposition, etc. In addition to their unique advantages, these methods all have limitations such as complicated processes and expensive equi...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C23C20/08C09K11/59
Inventor 胡晓云樊君江东苗仲海潘静张德恺
Owner NORTHWEST UNIV(CN)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com