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

Phosphor compound, LED device, and production method of LED device

A technology of LED devices and phosphors, applied in chemical instruments and methods, semiconductor devices, electrical components, etc., can solve the problem of low fluorescence quantum efficiency of gibbsite ore nano-luminescent materials, which cannot meet the application requirements of UV-type LEDs, and the preparation method can be Poor controllability and other issues, to achieve significant luminous effect, increase color rendering index, and meet the requirements of wide spectrum

Active Publication Date: 2017-11-17
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gibbsite ore nanoluminescent material prepared by the above method has disadvantages such as low fluorescence quantum efficiency, insufficient spectrum width, and poor controllability of the preparation method, which cannot meet the application requirements of UV LEDs.

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
  • Phosphor compound, LED device, and production method of LED device
  • Phosphor compound, LED device, and production method of LED device
  • Phosphor compound, LED device, and production method of LED device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] (1) Preparation of blue phosphor

[0118] Take an appropriate amount of organoaluminum salt precursor basic aluminum acetate (Al(OH)(Ac) 2 ), fully ground. Weigh 0.5000g-2.0000g of the ground basic aluminum acetate powder.

[0119] Put the weighed basic aluminum acetate powder into the quartz boat, put the quartz boat into the quartz tube, and then put the quartz tube into the heating area of ​​the tube furnace. Connect the exhaust system, check the airtightness of the system after sealing, and set the heating conditions after confirming that the airtightness is good.

[0120] Nitrogen gas was introduced into the quartz tube for 30 minutes to exhaust. After the exhaust was completed, nitrogen gas was continuously injected at a rate of 50 sccm, and the heating program of the tube furnace system was started. The starting temperature is room temperature, and the heating rate is 26°C / min. After the temperature was raised to 290°C, the system was kept at 290°C for 2 hour...

Embodiment 2

[0140] (1) Preparation of blue phosphor

[0141] Take an appropriate amount of organoaluminum salt precursor basic aluminum acetate (Al(OH)(Ac) 2 ), fully ground. Weigh 1.25 g of ground basic aluminum acetate powder.

[0142] Put the weighed basic aluminum acetate powder into the quartz boat, put the quartz boat into the quartz tube, and then put the quartz tube into the heating area of ​​the tube furnace. Connect the exhaust system, check the airtightness of the system after sealing, and set the heating conditions after confirming that the airtightness is good.

[0143] Nitrogen gas was introduced into the quartz tube for 30 minutes to exhaust. After the exhaust was completed, nitrogen gas was continuously injected at a rate of 50 sccm, and the heating program of the tube furnace system was started. The initial temperature is room temperature, and the heating rate is 30°C / min. After heating up to 300°C, the system was kept at 300°C for 2.5h.

[0144] After the tube furna...

Embodiment 3

[0161] (1) Preparation of blue phosphor

[0162] Take an appropriate amount of organoaluminum salt precursor basic aluminum acetate (Al(OH)(Ac) 2 ), fully ground. Weigh 1.25 g of the ground basic aluminum acetate powder.

[0163] Put the weighed basic aluminum acetate powder into the quartz boat, put the quartz boat into the quartz tube, and then put the quartz tube into the heating area of ​​the tube furnace. Connect the exhaust system, check the airtightness of the system after sealing, and set the heating conditions after confirming that the airtightness is good.

[0164] Nitrogen gas was introduced into the quartz tube for 30 minutes to exhaust. After the exhaust was completed, nitrogen gas was continuously injected at a rate of 100 sccm, and the heating program of the tube furnace system was started. The starting temperature is room temperature, and the heating rate is 32°C / min. After the temperature was raised to 320°C, the system was kept at 320°C for 2.5 hours.

...

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
emission peakaaaaaaaaaa
full width at half maximumaaaaaaaaaa
full width at half maximumaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical fields of luminescence and illumination, and concretely provides a phosphor composition. The phosphor composition includes blue phosphor and a packaging medium, and the blue phosphor contains no rare earth elements. The invention also provides an LED device based on the phosphor composition, and a production method thereof. The phosphor composition has a small toxicity and a large luminescence range, and is especially suitable for an ultraviolet-excited LED device.

Description

[0001] Cross References to Related Applications [0002] This application claims the priority of the Chinese patent application CN 201610997247.4 filed on November 10, 2016, entitled: "Phosphor composite, LED device and its preparation method", the entire content of which is incorporated herein by reference. technical field [0003] The invention relates to the technical field of light emission and lighting, in particular to a phosphor compound, an LED device based on the phosphor compound and a preparation method thereof. Background technique [0004] Compared with traditional lighting, light-emitting diodes (LEDs) are the most potential solid-state lighting for energy saving, especially white light-emitting diodes (WLEDs) have been widely used. The most common way to achieve white light is to use yellow phosphor Y 3 al 5 O1 2 : Ce 3+ (YAG:Ce) and blue light (luminescence band in the 450-470nm) InGaN light-emitting diode chip recombined to produce white light. Due to ...

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): C09K11/64H01L33/50H01L33/52
CPCC09K11/64H01L33/502H01L33/504H01L33/52
Inventor 陈冰昆许行健邹双阳钟海政邹炳锁王涌天
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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