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

Alkaline-earth sulfide luminescent material, preparation method and application of material

A technology of luminescent materials and sulfides, used in luminescent materials, chemical instruments and methods, electrical components, etc.

Inactive Publication Date: 2017-02-22
郑甘裕
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alkaline earth sulfide luminescent materials that can be applied to thin film electroluminescent displays have not been reported yet.

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
  • Alkaline-earth sulfide luminescent material, preparation method and application of material
  • Alkaline-earth sulfide luminescent material, preparation method and application of material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The preparation method of the above-mentioned alkaline earth sulfide luminescent material comprises the following steps:

[0035] Step S11, according to MeS: xCe 3++ The stoichiometric ratio of each element is weighed, wherein, x is 0.01-0.08, and Me is at least one selected from magnesium, calcium, strontium and barium.

[0036] Step S12, the organic source selects cyclopentadiene alkaline earth salt C respectively 5 h 5 ) 2 Me, hydrogen sulfide H 2 S and Tetramethylheptanedionate Ce(TMHD) 4 , where cyclopentadiene alkaline earth salt C 5 h 5 ) 2 Me and Tetramethylheptanedionate Ce(TMHD) 4 , the molar ratio is (1-x):x, and the vacuum degree of the chamber is pumped to 1.0×10 with a mechanical pump and a molecular pump -2 Pa~1.0×10 -3 Pa, the substrate is heat-treated at 700°C for 10-30 minutes, the rotation speed of the substrate holder is adjusted to 50-1000 rpm, and the carrier gas Ar gas is introduced at a flow rate of 5-15 sccm, and then oxygen is introdu...

Embodiment 1

[0050] Example 1: The substrate is ITO glass purchased by CSG, and it is ultrasonically cleaned with toluene, acetone and ethanol for 5 minutes, then rinsed with distilled water, air-dried with nitrogen, and sent to the reaction chamber of the equipment. Use a mechanical pump and a molecular pump to evacuate the vacuum of the chamber to 4.0×10 -3 Pa; Then the substrate is heat-treated at 700°C for 20 minutes, and then the temperature is lowered to 500°C. Turn on the rotating motor, adjust the rotating speed of the substrate holder to be 300 rpm, and feed cyclopentadiene alkaline earth salt C 5 h 5 ) 2 Mg, tetramethylheptanedionate cerium Ce (TMHD) 4 The carrier gas Ar gas has a molar flow ratio of 0.95:0.05 and a flow rate of 10 sccm. Introduce hydrogen sulfide H 2 S, the flow rate is 120 sccm, and the film deposition starts. The thickness of the film is deposited to 150nm, close the organic source and carrier gas, continue to pass oxygen, the temperature drops below 100...

Embodiment 2

[0051] Example 2: The substrate is ITO glass purchased by CSG, which is ultrasonically cleaned with toluene, acetone and ethanol for 5 minutes, then rinsed with distilled water, air-dried with nitrogen, and sent to the reaction chamber of the equipment. Use a mechanical pump and a molecular pump to evacuate the vacuum of the chamber to 1.0×10 -3 Pa; Then the substrate is heat-treated at 700°C for 10 minutes, and then the temperature is lowered to 250°C. Turn on the rotating motor, adjust the rotating speed of the substrate holder to be 50 rpm, and feed cyclopentadiene alkaline earth salt C 5 h 5 ) 2 Mg, tetramethylheptanedionate cerium Ce (TMHD) 4 The carrier gas Ar gas, its molar flow ratio is 0.92:0.08, hydrogen sulfide H 2 S, the flow rate is 10 sccm, and the film deposition starts. The thickness of the film is deposited to 80nm, close the organic source and carrier gas, continue to pass oxygen, the temperature drops below 100°C, take out the sample MgS: ​​0.08Ce 3+ ....

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

An alkaline-earth sulfide luminescent material has the chemical formula of MeS:xCe3+, wherein x ranges from 0.01 to 0.08, Me is selected from magnesium element, calcium element, strontium element and barium, and Ce3+ ions are activated elements. The EL (electroluminescent) spectrum of a luminescent film made of the alkaline-earth sulfide luminescent material has strong luminescent peaks in a 540nm wavelength area, and the luminescent film can be applied to a film electroluminescent display. The invention further provides a preparation method and an application of the alkaline-earth sulfide luminescent material.

Description

[0001] 【Technical field】 [0002] The invention relates to an alkaline earth sulfide luminescent material, a preparation method thereof, an alkaline earth sulfide luminescent film, a preparation method thereof, a thin film electroluminescence device and a preparation method thereof. [0003] 【Background technique】 [0004] Thin film electroluminescent display (TFELD) has attracted widespread attention and developed rapidly due to its advantages such as active light emission, full solid state, impact resistance, fast response, large viewing angle, wide application temperature, and simple process. At present, the research on color and even full-color TFELD and the development of multi-band luminescent materials are the development direction of this subject. However, the alkaline earth sulfide luminescent materials that can be applied to thin film electroluminescent displays have not been reported yet. [0005] 【Content of invention】 [0006] Based on this, it is necessary to pr...

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): C09K11/56H01L33/28H01L33/00
CPCC09K11/7718H01L33/005H01L33/28
Inventor 郑甘裕
Owner 郑甘裕
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