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

Up-conversion luminescence reversible regulation and control material based on photochromic effect and preparation method thereof

A photochromic and effect technology, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of unsatisfactory performance and so on

Active Publication Date: 2020-07-14
CIVIL AVIATION UNIV OF CHINA
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing inorganic photochromic materials are relatively few, and their performance is not ideal, especially there are fewer materials that can achieve reversible regulation of upconversion luminescence based on the photochromic effect.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Up-conversion luminescence reversible regulation and control material based on photochromic effect and preparation method thereof
  • Up-conversion luminescence reversible regulation and control material based on photochromic effect and preparation method thereof
  • Up-conversion luminescence reversible regulation and control material based on photochromic effect and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The upconversion luminescence reversible control material provided in this embodiment is SrBi 3.9-x Ho x Yb 0.1 Ti 4 O 15 Ceramic material, where x=0.005, its preparation method is as follows:

[0041] Use an electronic balance with an accuracy of 0.0001 g to weigh out 0.8947 g strontium carbonate (99%), 5.4997 g bismuth oxide (99%), 0.1183 g ytterbium oxide (99.9%), 1.9362 g titanium oxide (99%), 0.0057 g holmium oxide (99.9%), put it into a clean agate tank, add about 2 / 3 of the volume of the tank with absolute ethanol (99.7%), then place it in a planetary ball mill for grinding for 24 hours. Take the product out of the agate pot, put it in a glass beaker, dry it in an oven, then grind it with a mortar, put the product in a corundum crucible, put it in a box furnace, continue to heat up to 1050°C for pre-fired for 5 hours, and cool to 550°C. Then, the product obtained after cooling in the furnace is ground with an agate mortar, and the binder polyvinyl butyral ester (PV...

Embodiment 2

[0043] The upconversion luminescence reversible control material provided in this embodiment is SrBi 3.9-x Ho x Yb 0.1 Ti 4 O 15 Ceramic material, where x=0.02, its preparation method is as follows:

[0044] Use an electronic balance with an accuracy of 0.0001 g to weigh out 0.8947 g strontium carbonate (99%), 5.4786 g bismuth oxide (99%), 0.1183 g ytterbium oxide (99.9%), 1.9362 g titanium oxide (99%), 0.0227 g holmium oxide (99.9%), put it into a clean agate tank, add about 2 / 3 of the volume of the tank with absolute ethanol (99.7%), then place it in a planetary ball mill for grinding for 24 hours. Take the product out of the agate pot, put it in a glass beaker, dry it in an oven, then grind it with a mortar, put the product in a corundum crucible, put it in a box furnace, continue to heat up to 1050°C for pre-fired for 5 hours, and cool to 550°C. Then, the product obtained after cooling in the furnace is ground with an agate mortar, and the binder PVB (with a weight ratio of ...

Embodiment 3

[0046] The upconversion luminescence reversible control material provided in this embodiment is SrBi 3.9-x Ho x Yb 0.1 Ti 4 O 15 Ceramic material, where x=0.05, its preparation method is as follows:

[0047] Use an electronic balance with an accuracy of 0.0001 g to weigh out 0.8947 g strontium carbonate (99%), 5.4362 g bismuth oxide (99%), 0.1183 g ytterbium oxide (99.9%), 1.9362 g titanium oxide (99%), 0.0567 g holmium oxide (99.9%), put it into a clean agate tank, add about 2 / 3 of the volume of the tank with absolute ethanol (99.7%), then place it in a planetary ball mill for grinding for 24 hours. Take the product out of the agate pot, put it in a glass beaker, dry it in an oven, then grind it with a mortar, put the product in a corundum crucible, put it in a box furnace, continue to heat up to 1050°C for pre-fired for 5 hours, and cool to 550°C. Then, the product obtained after cooling in the furnace is ground with an agate mortar, and the binder PVB (with a weight ratio of ...

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

No PUM Login to View More

Abstract

The invention discloses an up-conversion luminescence reversible regulation and control material based on a photochromic effect and a preparation method thereof. The chemical formula of the material is SrBi<3.9-x>HoxYb0.1Ti4O15, and x is equal to 0.005, 0.02, 0.05 or 0.1. The preparation method comprises the following steps: taking SrCO3, Bi2O3, Yb2O3, Ho2O3 and TiO2 as raw materials, mixing and grinding in proportion, and further preparing the SrBi<3.9-x>HoxYb0.1Ti4O15 ceramic material by utilizing a simple high-temperature solid-phase reaction method. The invention has the advantages that: under the irradiation of near ultraviolet light, the material shows obvious discoloration, and meanwhile, the up-conversion luminescence intensity of the material is also changed. And meanwhile, underthermal stimulation, the discoloration can be restored to a state before irradiation, and the material is converted up to emit light and returns to an initial state. Under the alternating action of near ultraviolet irradiation and thermal stimulation, the up-conversion luminescence of the material shows excellent reversible regulation and control performance, and the response is quick, which indicates that the material can be used in the fields of optical switches, optical storage, safety anti-counterfeiting and the like in the future.

Description

Technical field [0001] The invention belongs to the technical field of rare earth-based up-conversion luminescent materials, and specifically relates to a reversible up-conversion luminescence control material based on a photochromic effect and a preparation method. Background technique [0002] At present, up-conversion luminescent materials with reversible luminescence control capabilities have attracted people's attention because of their broad application prospects in data storage, optical switches, rewritable paper, and multi-color displays. Photochromism is usually a reversible process, so you can try to use this process to control the luminescence properties of certain materials. So far, most of the research on photochromic materials by scientific researchers has focused on organic compounds, such as sulfoxides, stilbene derivatives, hydrazone compounds, Steinhaus compounds, o-nitrobenzyl derivatives, etc. However, most organic materials have poor thermal stability and ar...

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
IPC IPC(8): C04B35/475C04B35/622C04B35/626C04B35/638C09K11/77
CPCC04B35/475C04B35/622C04B35/62695C04B35/638C09K11/7769C04B2235/3213C04B2235/3224C04B2235/6567C04B2235/9646
Inventor 魏通杨丰铭申灵慧
Owner CIVIL AVIATION UNIV OF CHINA
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