Communicate with Supplier? Supplier
John chang Mr. John chang
What can I do for you?
Chat Now Contact Supplier
YANGZHOU POSITIONING TECH CO., LTD.
YANGZHOU POSITIONING TECH CO., LTD.
YANGZHOU POSITIONING TECH CO., LTD.
YANGZHOU POSITIONING TECH CO., LTD.
Home> Blog> Japan's deep ultraviolet light emitting diode output power record

Japan's deep ultraviolet light emitting diode output power record

December 24, 2020
Japan's deep ultraviolet light emitting diode output power record The Japan Institute of Physical Chemistry and the Agency for the Promotion of Science and Technology announced that a deep-ultraviolet light emitting diode (LED) with a wavelength of 250 nanometers developed by one of their research teams has successfully achieved a high output power of 15 milliwatts for the first time in the world, and its electron injection efficiency has improved. 80%. This deep ultraviolet light emitting diode is 7 times higher than the current highest output of the same type of equipment, and has a good bactericidal effect, and it can rapidly decompose the harmful substances such as BC and HL. It has reached a practical level. The research results have been applied for a patent on February 24, and the paper is scheduled to be published on the "Applied Physics Letters" published on March 25.

High power deep UV LEDs with wavelengths between 220 nm and 350 nm in sterilizing, water purification, medical, high-density light recording, high color rendering LEDled/'target='_blank'> lighting and high-speed decomposition of hazardous substances, etc. There are wide applications in the field. Until now, ultraviolet lasers and gas lamps using deep laser light sources such as excimer lasers and various frequency doubler lasers have been the mainstream. However, they have the disadvantages of large size, short life, and high cost, and are difficult to use. The use of high-brightness deep-ultraviolet LEDs and deep-ultraviolet LDs for semiconductors can achieve miniaturization and provide inexpensive, efficient, and long-life UV light sources with a broader application perspective.

The aluminum nitride gallium material is considered to be the most ideal deep ultraviolet luminescent material, and the research team achieved the highest in the world by reducing the dislocation density of the aluminum gallium nitride buffer layer and inserting a multi-quantum barrier as an electron block layer in the upper part of the quantum well luminescent layer. Power output. The results of this research have broken the understanding that deep ultraviolet LEDs cannot achieve high efficiency in the past, and have succeeded in bringing the UV output power to a practical level. At the same time, multi-quantum barriers may not only improve the efficiency of the ultraviolet light emitting devices but also the already practical blue LEDs, green LDs, and LED and white LED lamps.

In terms of sterilization, the highest efficiency of direct UV disinfection is in the wavelength range from 250 nm to 280 nm, and in the decomposition of organic matter, dust, and hardly decomposable pollutants such as Erlenmeyer, ultraviolet radiation with a wavelength of 270 nm to 320 nm is used. The ultraviolet irradiation system of photocatalysts such as titanium oxide has a relatively good decomposition effect. The research team plans to further increase the efficiency of deep ultraviolet sterilization for wavelengths from 250 nm to 280 nm, and to achieve efficient wavelengths at wavelengths from 220 nm to 390 nm, and to conduct in-depth research on the deep-ultraviolet high-power output to achieve the current 1.5 The efficiency of % increases to ten digits.
Contact Us

Author:

Mr. John chang

E-mail:

info@yzpst.com

Phone/WhatsApp:

8613805278321

Popular Products
You may also like
Related Information
Europe seeks new light emitting diode production process

The existing light emitting diode (LED) lamps in the market are both energy-saving and high-priced, but they are expensive. The European nanostructured semiconductor lighting research project...

Two organic light-emitting diode lighting alliance standards released

As an illumination source, OLEDs (organic light emitting diodes) have advantages of easy realization of white light, ultra-thin light sources, and light sources of arbitrary shapes. As a new type of...

High-brightness light-emitting diode application prospects

One of the characteristics of LEDs is their low-current, low-voltage-drive power-saving features. Such features attract the attention of everyone when the world's energy resources are lacking and...

Simple structure and high efficiency blue fluorescent organic light-emitting diode

Organic light-emitting diodes (OLEDs) have been the subject of intense research by academics and industry for many years due to their great potential for lighting and full-color display. Researchers...

Related Categories

Email to this supplier

Subject:
Email:
Message:

Your message must be betwwen 20-8000 characters

Home

Product

Whatsapp

About Us

Inquiry

苏ICP备05018286号-1
We will contact you immediately

Fill in more information so that we can get in touch with you faster

Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.

Send