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Japan To Develop Deep UV LED Technology To Save The World's Leading 'light Of The Future'

Jan 11, 2019

  Only invisible light irradiation, can easily sterilization of the coming era. In addition to daily life outside, this technology also helps to improve health conditions in poor areas and the like. Japanese companies are by virtue of technical strength, the future world of light to lead rescue. backpfrontp life is a battle with mold. Air conditioners,LED stadium lights humidifiers, air purifiers, bathroom, kitchen \u0026 mdash; \u0026 mdash; clean as long as a little slack, these places will be moldy. If you do not put a little mold in the eye, you will eat bitterness. Not only is the unpleasant odor, fungal reproduction after the air-conditioning outlet and humidifiers, once spread to the room, there may lead to disease mycoplasma pneumonia. backpfrontp mankind can win and enemies \u0026 mdash; \u0026 mdash;? mold fight it now, a new generation of weapons can be called cutting-edge technology is about to enter the practical stage. backpfrontp deep UV LED stadium lighting (Light Emitting Diode) can release a bactericidal effect, and invisible light. This has a bactericidal effect of light, called deep ultraviolet light. backpfrontp deep ultraviolet light with a wavelength shorter ultraviolet light. In the LED field, now developed primarily releases UV-C, namely 100 ~ 280nm (nanometers, and incorporate it into 1 billion per 1) Type of light. Sun also contains deep ultraviolet rays, but blocked by the ozone layer, High power led flood lights the basic can not reach the ground. backpfrontp deep UV power has long been confirmed. Deep ultraviolet light can act directly on the basis of life \u0026 mdash; \u0026 mdash; DNA, essentially cut off from the bacteria. Asahi Kasei UVC project project manager Kuze straight Yang said: Studies have shown that the wavelength of 260nm deep ultraviolet rays are particularly vulnerable to being absorbed by DNA. It has the effect of elimination of DNA genetic information. After the loss of genetic information, the bacteria can no longer continue to multiply. backpfrontp In the past,LED stadium floodlights mercury is a well-known deep ultraviolet generating device. Mainly used for commercial sterilization and inspection purposes, such as medical equipment, factory and research institutions, food industry and so on. But mercury in other areas, but the popularity of difficulties. backpfrontp First, performance is limited. Mercury operating voltage of 100V or more, LED high bay lights the size of a few cm ~ a few m. Large power alone is sufficient luminous preheating before, it takes 10 to 30 minutes. And life is only 3,000 to 5,000 hours. Such size, power consumption and durability, can not be applied to home appliances and automobiles. The most important issue backpfrontp mercury toxic to humans. 2013, Japan and other 92 countries signed the 'Minamata Convention on Mercury.' Strengthening the practice of limiting mercury is expanding worldwide. backpfrontp and deep UV LED gym lights can easily be installed on the machine, but also has good security. Working voltage of about 5 ~ 7V, size is only a few mm, preheat time is 0 seconds. Life up to 10,000 hours, and the impact of durability, without the use of mercury. backpfrontp DUV LED broke many restrictions mercury. If you get the popularity of this new technology, in every aspect of life, the Daily sterilization will become a reality. backpfrontp not just air conditioners, refrigerators, water dispensers, humidifiers and other appliances, portable terminal, household equipment and cars, and various other places can also be installed. Low energy consumption because of work, lack of clean drinking water in poor areas in the world, should also play a role in improving the living environment. Use will expand in one fell swoop. Insiders believe that, deep UV LED-related market size in the next three to four years, will exceed 100 billion yen. This technology is currently backpfrontp weaknesses: poor luminous efficiency than mercury, the production technology is not mature. However, to compensate for these weaknesses technologies are being developed. backpfrontp to capture the growth of the market, by improving luminous efficiency, to establish mass production technology to achieve cost as the goal, set off intense global competition in technological development. It took the lead in the three Japanese companies: Nikkiso, Asahi Kasei and Tokuyama. backpfrontp DUV LED semiconductor technology. The focus of competition, is whether a high yield, mass production of high-performance semiconductors. backpfrontp Nobel technology is the source of backpfrontp 2014 years Isamu Akasaki and Hiroshi Amano for developing a blue LED tennis court lights was awarded the Nobel Prize in Physics. Large industrial enterprises Nikkiso pumps since 2006, began to carry out practical research under the guidance of the two. In March 2015 after 10 years, to achieve the deep UV LED's production quantities. backpfrontp With the wisdom of the world semiconductor authority to establish mass production technology Why so long? This is because the blue, red, etc. LED has entered a variety of different materials and the use of universal DUV LED football stadium lights stage. backpfrontp Generally, LED is a light emitting material by superimposing a film on a sapphire substrate in the production mode. When backpfrontp making blue LED, indium gallium nitride crystal layer superimposed on a sapphire substrate. Production of high-quality crystal layer, is mass production and stable performance of focus, but not easily crystallized indium gallium nitride on sapphire. backpfrontp this end, they came up with the first set GaN buffer layer on a sapphire, and then superimposed on top of indium gallium nitride layer. Akasaki and Amano is by virtue of the development of the buffer layer technology achievements, won the Nobel Prize. backpfrontp Nikkiso has initiated the development of a buffer layer on a sapphire substrate DUV 1000W LED flood lights mass production technology. However, the deep UV LED and a blue LED light-emitting materials different from aluminum gallium nitride, and the gallium nitride having a UV-absorbing properties easily, so the material needs to be changed as a buffer layer of aluminum nitride. backpfrontp through improved temperature management, etc., it is now able to mass production of a reliable product (Minister responsible for the development of Nikkiso Giken UV-LED career Ishiguro Wing Hau). Nikkiso from spring 2016, will begin mass production light-emitting power of 50 mW, reaching 1.7 times the previous products. In the future also plans to supply different devices for embedded LED street lighting, as the first product, the company has developed a device installed in the water for water disinfection modules. Equipment water only 2 ~ 10L per minute speed of flow through the module, which will be able to kill 99.9% of the E. coli and other bacteria. backpfrontp reform substrate material backpfrontp Asahi Kasei method for producing a self-improvement. Use 2011 acquisition of US CrystalIS technology, success will change to aluminum nitride substrate material. Kuze proudly say: We made a very nice single crystal substrate, and good compatibility with luminescent material. Internal defects can significantly reduce a film-like light-emitting material. backpfrontp DUV LED of milliwatts price said to be around $ 2-3. Asahi Kasei has set a target to make use of large-caliber technology substrate, so that the cost of $ 0.5 to 1 in 2016, will be further reduced to $ 0.25 in the future. Just a few thousand yen era can be installed in home appliances coming. backpfrontp Asahi Kasei will play a wide range of business areas, from health care to housing, appliance components are covered benefits, pushing deep UV LED gym lighting to achieve universal access. Strive to 2020, the sales of 10 billion yen. backpfrontp However, there is an aluminum nitride substrate problem: poor light extraction efficiency. High refractive index of aluminum nitride, High power LED stadium light internally generated, most of them will take place on a flat reflecting surface of the substrate, enclosed within the LED. backpfrontp Japan ICT research institutions and Tokuyama is working to solve this problem. We developed the world's highest output power, more than 90 mW DUV LED. First, as shown above, the surface of the substrate to produce a photonic crystal structure, which is several hundred nm size irregularities. Then superimposed on top of several tens of nm size of the fine irregularities to form a mixed structure, the light-extraction efficiency increased to about 2 times over. backpfrontp Director of ICT Development Center sophisticated device deep ultraviolet ICT research institutions in Japan Ichiro Inoue Zhen said: We are still in development to take advantage of (the same as the stamp stamping surface) nanoimprint method, a hybrid structure with low-cost manufacturing technologies. Tokuyama 2016, put into use in the deep UV LED technology. backpfrontp as deep UV LED development competition leader, how to get the final victory, the test of strength when the Japanese arrived. backp