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

Gadolinium tantalate transparent illuminating film and preparing process thereof

A technology of light-emitting film and gadolinium tantalate, which is applied in the field of light-emitting film and its preparation, can solve the problem of not involving tantalate film and the like, and achieve the effects of speeding up the preparation cycle, low synthesis temperature and good adhesion

Inactive Publication Date: 2008-12-24
TONGJI UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the research on tantalate luminescent thin films has been reported, it has not involved the use of trace metal ion doping to effectively improve the luminous intensity of tantalate thin films

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] (Gd 0.952 K 0.048 )TaO 4 :Eu 0.1 preparation of

[0016] At room temperature, 2 ml of concentrated HNO 3 Add 30ml of absolute ethanol, and then add 0.952mmol of Gd 2 o 3 and 0.1 mmol of Eu 2 o 3 Add it to the ethanol solution, heat and stir at 79°C to dissolve the oxide. Dissolve 2 mmol of TaCl in 20 ml of ethanol 5 and 0.096 mmol of KCl, and added to the above clarified solution, the mixture was stirred for 3 hours and left to stand at room temperature, and the solution was aged for 24 to obtain the sol required for coating. Choose clean quartz or optical glass as the substrate, and use the method of spin coating to coat the film. The film thickness can be adjusted by changing the rotation speed. The spin-coated wet gel film is quickly placed in an infrared oven for thermal decomposition pretreatment for 2 to 5 minutes, and then the dry gel film is subjected to ultraviolet light strengthening treatment for about 30 minutes with an ultraviolet lamp. Send the ...

Embodiment 2

[0018] (Gd 0.885 Zn 0.115 )TaO 4 :Eu 0.1 preparation of

[0019] At room temperature, 2 ml of concentrated HNO 3 Add 30ml of absolute ethanol, and then add 0.885mmol of Gd 2 o 3 and 0.1 mmol of Eu 2 o 3 Add it to the ethanol solution, heat and stir at 79°C to dissolve the oxide. Dissolve 2 mmol of TaCl in 20 ml of ethanol 5 and 0.230mmol of Zn(NO 3 ) 2 ·6H 2 O, and added to the above clarified solution, the mixed solution was stirred for 3 hours and left to stand at room temperature, and the solution was aged for 24 to obtain the sol required for coating. The coating process is the same as in Example 1. The surface of the film is uniform, dense and free of cracks, and has good adhesion to the substrate. Under ultraviolet light or X-ray irradiation, (Gd 0.885 Zn 0.115 )TaO 4 :Eu 0.1 The intensity of the 611nm red emission peak of the transparent film is the same as that of the GdTaO prepared under the same conditions 4 :Eu 0.1 3.2 times that of transparent f...

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

A transparent and luminous gadolinium tantalate film, whose chemical formula is (Gd1-xMx) TaO4: Eu0.1, where X=1-0.15 and M is K or Zn, is preparing from inorganic salt instead of organic alkoxide through sol-gel process. Its advantages are no poison, low cost, high light intensity and high adhesion to substrate.

Description

technical field [0001] The present invention relates to a kind of luminescent thin film and preparation method thereof, specifically relate to a kind of K + or Zn 2+ Ion-doped transparent gadolinium tantalate high-brightness transparent luminescent film and preparation method thereof. Background technique [0002] Luminescent film is an important functional material. Compared with display screens made of traditional phosphors, luminescent film shows its superiority in terms of contrast, heat conduction, uniformity, and adhesion to the substrate. In recent years, with the development of X-ray microscopic imaging technology, the X-ray luminescent coating prepared by traditional phosphor powder is affected by the scattering of phosphor particles, and the spatial resolution of X-ray CCD can only reach tens of microns. level, which restricts the further improvement of the spatial resolution of the X-ray CCD. Using transparent inorganic thin film scintillation material as the X...

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 Patents(China)
IPC IPC(8): C09K11/78
Inventor 顾牡刘小林徐昕肖莉红
Owner TONGJI UNIV
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