2014年3月14日星期五

Blue Ocean Quest: How deep is deep UV LED lighting water?

Some studies report shows featuring high-tech innovation DUV LED widely used, will become the new hot spot of global LED research and investment, excessive investment in the LED commercial lighting Manufacturer quickly become blue-green Red Sea , while still a DUV LED market Blue Ocean , then this piece of how deep blue sea ? To enter this blue ocean gold , companies need to prepare for what ?

Ideal alternative source

Deep UV light is the wavelength between 100 nm to 280 nm , a semiconductor material having a deep- UV light source in the illumination value , sterilization , medical, printing , biochemical tests , high-density information storage and confidential communications. AlGaN materials in the active region of deep UV LED emission wavelength can cover 210-365nm UV band , the band is an ideal material to achieve deep UV LED device products , with other conventional UV light sources can not match advantage .

Internet information, future LED market may be divided into two parts, one for the general illumination of visible light LED, the other which is a high-tech innovation featuring DUV LED. Currently, most of the investment into the LED industry both blue and green fields. Excessive investment makes blue and green LED market quickly become the Red Sea, and deep UV LED market is still a blue ocean , and its broad market prospects , becoming the semiconductor lighting LED, the new hot spot of global LED research and investment.

DUV LED applications is wide , including : water, air , beverage , pharmaceutical packaging disinfection ; surgical instruments sterilization and aseptic conditions remain ; in the refrigerator , to kill mold spores survived more to extend food shelf life. In addition to disinfection , deep UV LED is also capable of photochemical catalysis, ink curing and so on.

With the development of science and technology, to replace the original DUV LED application technology and products have broad market prospects , we will DUV LED replacement parts to its product comparison, its obvious advantages :

Mercury : In the field of health care and food , often using low-pressure mercury lamp sterilization, but because of the mercury is likely to cause harm to the environment, so researchers have been hoping to find the excellent performance of environmental alternatives. Deep UV is a relatively short wavelength ultraviolet light, to kill bacteria and viruses more efficient. Although the total output power of the large conventional mercury lamp , the output light intensity per unit area is very weak , only a few hundredths of a 280 nm ultraviolet light emitting diodes . Thus , the band at 280 nm DUV LED is more suitable for close quickly than conventional mercury lamp disinfection , and particularly small device size .

Traditional UV lamp : traditional UV lamps due to its operating principle needs, compared with semiconductor products are LED, the volume is very large, high-voltage starter needs . Furthermore, although the total output power of the traditional mercury large output light intensity per unit area is very weak , only a few hundredth of 280 nm ultraviolet light emitting diodes . Thus , the band at 280 nm LED commercial lighting Manufacturer is more suitable for close quickly than conventional mercury lamp disinfection , and particularly small device size .

Mercury : mercury UV light source compared , aluminum gallium nitride -based deep ultraviolet (AlGaN) material with sturdy outer LED , energy saving, long life, no mercury environmental protection , etc., is gradually infiltrated mercury traditional applications.

LED lighting in the limelight now , once entered the Blu-ray harm people's vision , caused a lot of discussion in the industry . How much blue light hazard ? Visual currently inconclusive. So whether DUV LED harm to the human body ? LED Network reporter learned that the new century on the internet , the band at 280 nm DUV LED power is very small , it is efficient bactericidal effect against high unit area illumination, rather than high power . The LED illumination unit area is inversely proportional with the square of the distance . Thus , the working distance outside the sterilization , deep UV LED minimal effect on human skin . In addition, deep UV LED compact, easy to hide design , less than 0.1 mm thick plain glass and plastic can be completely absorbed deep ultraviolet . Just as in everyday life lighters, knives, electrical outlets , etc. , as long as the proper use of UV LED products designed security is fully guaranteed.

Industry have invested

Many companies have already found a new blue ocean and put it in, and the formation of commercialization in this area . According to relevant statistics, in 2012 the global potential applications DUV LED market size of around $ 6 billion . American SECT company back in 2011 they launched a lifetime of over 10,000 hours of deep ultraviolet (UV) LED products ; Japan U-VIX dedicated UV source application development , and its 2010 sales of only $ 2,000,000 , while in 2011 sales amount to more than $ 10 million ; Qingdao Jason put into operation by the end of 2010 the country 's first deep UV wavelength 280 nm LED production lines , research and production of deep UV LED products with independent intellectual property rights of innovative , they developed the production of China's first DUV LED epitaxial growth equipment , the equipment has been breaking the monopoly of foreign companies ; the end of 2011 , three optical and partners CRYSTALISINC (USA) launched the world's highest brightness was deep UV LED chips ......

In addition there are many companies have invested in the blue ocean beyond , the global research organization also launched a research and development in this field , it is understood , the nation's leading DUV in research , but in recent years has been overtaken Japan ; China's Taiwan and South Korea started relatively late, but in this area has also made some progress ; country has developed rapidly in recent years in the field , equipment, materials and devices have a certain aspect of accumulation, the development of the currently active application module .

September 6, 2013 in the afternoon , the National Academy of Sciences undertake major research equipment development project - " deep UV solid state laser source cutting-edge equipment development project " in Beijing by the acceptance , making China the world's only capable of producing practically the whole DUV solid-state lasers country ; and important research institutions as domestic aluminum gallium nitride -based deep UV LED 's , Institute of Semiconductors , Chinese Academy of lighting research and development center in support of national 863 Program under the aluminum gallium nitride epitaxial growth and doping materials and preparation process , such as deep UV LED chips equally accumulated years of research experience , has successfully achieved the emission wavelength from 260nm to 300nm DUV LED chip series , and has been with industrial production capacity ; Physics and Mechanical and Electrical Engineering , Xiamen University research team under Professor Kang Junyong study group after several years of research, David Wong, associate professor and doctoral research team and other high- Na borrow a slim aluminum cracked DUV LED devices " light extraction efficiency," the key challenges for the future of such devices in the industrial application of medical , environmental, military and other fields open new methods and ideas.

It is understood that the current deep UV LED technology is in the development stage , less restrictive in terms of patents and intellectual property rights , in favor of the occupation , to lead the future of the technical high ground . Before large-scale industries, countries also need guidance and support in order to get the initiative on the core technology.

Have leading technology in this area this year, foreign companies have overweight in this market , it is learned Asahi Kasei intends to build volume production testing of UV LED production line has a bactericidal effect in 2014 , although the annual production capacity is unknown, but estimated to Asahi Kasei subsidiaries ' Fuji branch agency " cast billions of yen , the import may be due to the early production equipment , the goal is to achieve revenue target of 30 billion yen in the year 2020 . In addition, in Tokyo, Japan NIKKISO said the company is setting up a new DUV LED commercial lighting Manufacturer , the goal is to begin production in 2014 , UVB and UVC LED light source with an annual capacity of over 1 million groups.

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