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

Preparation method of scandium tungstate/yttrium oxide composite fluorescent temperature sensing material

A technology for sensing materials and composite fluorescence, which can be used in color-changing fluorescent materials, thermometers with physical/chemical changes, luminescent materials, etc. It can solve problems such as poor thermal stability, limited application, and thermal quenching of fluorescence, and achieve high absolute sensitivity. , the preparation method is simple, the effect of fast response speed

Inactive Publication Date: 2020-01-03
NANJING UNIV OF TECH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, common fluorescent thermometer materials have problems such as poor thermal stability and severe fluorescence thermal quenching, which severely limit their application in high temperature regions.

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
  • Preparation method of scandium tungstate/yttrium oxide composite fluorescent temperature sensing material
  • Preparation method of scandium tungstate/yttrium oxide composite fluorescent temperature sensing material
  • Preparation method of scandium tungstate/yttrium oxide composite fluorescent temperature sensing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 3mmol (0.2128g) WO 3 , 0.8mmol (0.1103g) Sc 2 o 3 , 0.18mmol (0.0709g) Yb 2 o 3 and 0.02mmol (0.0077g) Er 2 o 3 In a mortar, add a small amount of ethanol and grind until all the ethanol is volatilized, repeat three times to make the powder evenly mixed. Then pour the sample into a corundum crucible and react in a muffle furnace at 1100°C for 12 hours. After the reaction is completed and the temperature is lowered to room temperature, grind the sample, grind it evenly, put it into the muffle furnace for refiring, and sinter at 1100°C for 12 hours to obtain Sc 2 (WO 4 ) 3 : Yb 3+ / Er 3+ , after grinding for later use. 1.6mmol (0.6128g) Y (NO 3 ) 3 ·6H 2 O, 0.36mmol (0.1617g) Yb (NO 3 ) 3 ·5H 2 O and 0.04mmol (0.0185g) Er(NO 3 ) 3 ·5H 2 O was added to a 50mL beaker, 20mL of deionized water was added to form a solution, and then excess NaOH was added under strong magnetic stirring, and the stirring was continued for 24h. Centrifuge and wash the ob...

Embodiment 2

[0030] Weigh 3mmol (0.2128g) WO 3 , 0.8mmol (0.2304g) Sc 2 (CO 3 ) 3 , 0.18mmol (0.0947g) Yb 2 (CO 3 ) 3 and 0.02mmol (0.0103g) Er 2 (CO 3 ) 3 In a mortar, add a small amount of ethanol and grind until all the ethanol is volatilized, repeat three times to make the powder evenly mixed. Then pour the sample into a corundum crucible and react in a muffle furnace at 1100°C for 12 hours. After the reaction is completed and the temperature is lowered to room temperature, grind the sample, grind it evenly, put it into the muffle furnace for refiring, and sinter at 1100°C for 12 hours to obtain Sc 2 (WO 4 ) 3 : Yb 3+ / Er 3+ , after grinding for later use. 1.6mmol (0.6128g) Y (NO 3 ) 3 ·6H 2 O, 0.36mmol (0.1617g) Yb (NO 3 ) 3 ·5H 2 O and 0.04mmol (0.0185g) Er(NO 3 ) 3 ·5H 2 O was added to a 50mL beaker, 20mL of deionized water was added to form a solution, and then excess NaOH was added under strong magnetic stirring, and the stirring was continued for 24h. Centr...

Embodiment 3

[0032] Weigh 3mmol (0.2128g) WO 3 , 0.8mmol (0.1103g) Sc 2 o 3 , 0.18mmol (0.0709g) Yb 2 o 3 and 0.02mmol (0.0077g) Er 2 o 3 In a mortar, add a small amount of ethanol and grind until all the ethanol is volatilized, repeat three times to make the powder evenly mixed. Then pour the sample into a corundum crucible and react in a muffle furnace at 1100°C for 12 hours. After the reaction is completed and the temperature is lowered to room temperature, grind the sample, grind it evenly, put it into the muffle furnace for refiring, and sinter at 1100°C for 12 hours to obtain Sc 2 (WO 4 ) 3 : Yb 3+ / Er 3+ , after grinding for later use. 1.6mmol (0.5604g) Y (CH 3 COO) 3 , 0.36mmol (0.1520g) Yb (CH 3 COO) 3 and 0.04mmol (0.0119g) Er(CH 3 COO) 3 Add it into a 50mL beaker, add 20mL deionized water to form a solution, then add excess NaOH under strong magnetic stirring, and keep stirring for 24h. Centrifuge and wash the obtained white powder with deionized water and absol...

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 provides a preparation method of a scandium tungstate / yttrium oxide composite fluorescent temperature sensing material. The preparation method is simple, the prepared scandium tungstate / yttrium oxide composite material Sc2(WO4)3:Yb<3+> / Er<3+>&Y2O3:Yb<3+> / Er<3+> (S & Y) has a wide luminous temperature range, and the defects of poor thermal stability and severe thermal quenching of fluorescence of traditional fluorescent temperature sensing material structures can be overcome. In the temperature range of 293K-1073K, the responsive speed of the luminous color of the material to temperature change is quick, an extremely high absolute sensing sensitivity (0.6 K<-1>) is achieved, and the material has corresponding determined luminous color at temperature points; and through comparison of the luminous color of the composite material with a standard colorimetric card which is prepared in advance, the temperature of a measured object can be measured simply and quickly, and the composite material can be applied to rapid detection of the surface temperature of the object at high temperature.

Description

technical field [0001] The invention relates to the technical field of photoelectric functional materials, in particular to a method for preparing a scandium tungstate / yttrium oxide composite fluorescent temperature sensing material. Background technique [0002] As one of the most important physical parameters, temperature requires fast and stable measurement in many scientific research fields such as industry, biology, food, medicine, and electronics. However, with the development of time, traditional thermometers can no longer meet the requirements of real-time and high spatial resolution rate and remote monitoring requirements. [0003] Fluorescent temperature sensing, as a promising non-invasive temperature measurement technology, has superior performance over traditional temperature sensing technologies in terms of spatial and temperature resolution, temperature display capability, versatility, and reliability. Fluorescent thermometer materials, in which temperature s...

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): C09K11/78C09K9/00G01K11/12
CPCC09K11/7776C09K9/00G01K11/12
Inventor 黄岭殷丽莎魏阳周洁华廷伟谢小吉
Owner NANJING UNIV OF TECH
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