The 2017 China International E-Commerce Expo has 1185 exhibitors from home and abroad, with 2,551 international standard booths and an exhibition area of 50,000 square meters. The exhibition attracted brands such as Google, Amazon, Alibaba, Baidu and Jingdong Mall. A total of 116,569 people from 196 groups in 27 countries and regions visited the exhibition, and 43,432 cooperation intentions were reached.

When it comes to this highly regarded UV-LED field, research reports show that deep-UV LEDs featuring high-tech innovation are widely used and will become a new hot spot for LED research and investment in the world. The UV LED light source has only begun to expand its application in the past two to three years. Among them, the UV-A band is about 320~400nm, the UV-B is about 290~320nm, and the UV-C band is 240~290nm. The market potential of UV-A and UV-C bands is the largest. From the perspective of the manufacturing technology of LED components, the shorter the wavelength, the harder it is to do. Compared with the current competition of blue LED chips, the Chinese market can penetrate. After making money or digging corners to get shortcuts, but the UV LED crystal production is difficult, the technical threshold is more than 10 times difficult, especially the short-wavelength manufacturers are relatively few, not through the angle can be solved.

At present, the field of UV LED is very close to the initial form of LED lighting development. There is a relationship between the market demand and the number of enterprises, such as "chicken eggs, eggs and chickens." Therefore, many companies that are optimistic about the UV LED market segment are still waiting to see and are not willing to pay for "testing water." However, under the help of Yiwu Weihong Keji, monochrome electronics successfully opened and enhanced the influence of UV LED products on the mobile Internet. Moreover, with the expansion of market demand and the promotion of popularity and popularity of large-scale events such as this exhibition, there will be more companies paying attention to UV LEDs and participating in this field, which is an inevitable trend.

Higher technology thresholds and scarce equipment have made UV LED companies' survival depend on "blood". Since technology and price have not yet reached the market, the day before the market returns is very long. Before that, companies need a lot of investment to maintain R&D costs and equipment investment, and the country has no relevant funds. Policy support mainly relies on market-based venture capital. The good news is that the National 863 Program has attached great importance to UVLED technology and will be established. This will drive the company to pay attention, and naturally more companies will participate.

Committed to the development and manufacture of highly reliable UV LEDs. Products cover UVA, UVB, UVC (260-430nm), widely used in counterfeit anti-counterfeiting, nail phototherapy, mosquito repellent, photocatalyst air purification, industrial photocuring, deep ultraviolet sterilization, medical treatment, non-destructive testing and leak detection, Fluorescence detection, jewelry identification, plant growth and other fields.

Blue Ocean: exploring the deep UV LED the depth of the water

    Studies have shown that deep UV LED application to high-tech innovation as the characteristics of widely, will become the new hot spot of research and investment of global LED, excessive inputs to the blue and green LED market quickly turned into the Red Sea, and deep UV LED market is still a blue ocean, so this piece of blue water, how deep? To enter this piece of blue ocean gold, companies need to prepare?

    Ideal alternative light source

    Deep UV refers to a wavelength of 100 nm to 280 nm wavelength semiconductor, deep UV light has significant application value in lighting, sterilization, medical, printing, biochemical detection, high density information storage and security communication etc.. Using AlGaN material as the ultraviolet light emitting wavelength of the active region of deep UV LED can cover 210-365nm, is an ideal material for the realization of the band deep UV LED devices, with other traditional UV light incomparable advantages.

    Internet data show that the future of the LED market may be divided into two parts, part of the general lighting for the visible light LED, and the other is a high-tech innovation featuring deep UV LED. Currently, most of the investment in the LED industry has been flooded into the field of blue-green. Over the blue and green LED market quickly into the Red Sea, and deep UV LED market is still a blue ocean, the broad market prospects, after becoming the semiconductor lighting LED, the new focus of research and investment in global LED.

    The application of deep UV LED is very extensive, including: drinking water disinfection, air, beverage, pharmaceutical packaging; surgical instruments sterilization and aseptic condition to maintain; in the refrigerator, killing the survival of spores, prolong the preservation period of more food. In addition to disinfection, deep UV LED can also be photochemical catalysis, ink curing, etc..

    With the development of science and technology, deep UV LED replace the original application technology and products have a broad market prospects, we will be deep UV LED and some of its products, compared with the obvious advantages:

    Mercury lamp: in the field of medical and food, often use low pressure mercury lamp sterilization, but Mercury is easy to cause harm to the environment, so researchers have been looking for a good performance of environmentally friendly alternatives. Deep UV is a relatively short wavelength of ultraviolet light, killing bacteria and viruses are more efficient. Although the total output power of the traditional mercury lamp is large, the output light intensity per unit area is very weak, only a few hundred of the 280 nm ultraviolet light emitting diodes. Therefore, the deep ultraviolet 280 nm band LED is more suitable for fast disinfection than the traditional mercury lamp, and the equipment is very compact.

    Traditional UV lamp: the traditional ultraviolet light because of its working principle needs, and the semiconductor products belong to the LED, the volume is very large, the need for high pressure glow. In addition, although the total output power of the traditional mercury lamp is large, the output light intensity per unit area is very weak, only a few hundred of the 280 nm ultraviolet light-emitting diodes.  Therefore, the deep ultraviolet 280 nm band LED is more suitable for fast disinfection than the traditional mercury lamp, and the equipment is very compact.

    Mercury lamp: mercury lamp UV light source, based on aluminum nitride (AlGaN) material of deep UV LED with solid, energy saving, long life, mercury free environmental protection and other advantages, is gradually infiltrated into the traditional application of mercury lamp.

    In the LED lighting in the limelight now, a blue light hazard has entered people's field of vision, caused a lot of debate in the industry. How much is the blue light?. So deep UV LED to the human body is hurt? The new century LED network reporter on the Internet to understand, deep ultraviolet at 280 nm LED power is very small, its high bactericidal effects on the unit area of high intensity, high power and not. The LED unit area illumination is inversely proportional to the square of the distance. Therefore, in addition to the working distance, the effect of deep UV LED on human skin is negligible. In addition, deep UV LED compact size, easy to hide design, less than 0.1 mm thick ordinary glass and plastic can completely absorb the deep uv. As in the daily life of lighters, knives, power sockets, etc., as long as the correct use of the design of a reasonable UV LED supplies is completely safe.

    The industry has invested

    Many companies have discovered this new blue ocean and put in, and the formation of commercialization in this area. According to relevant statistics, in 2012 the world's deep UV LED potential application market size of about $6 billion. The United States SECT company has launched a life more than 10000 hours of deep ultraviolet (UV) as early as 2011 LED products; Japan U-VIX committed to UV light source application development, its 2010 sales of only $2 million, while the 2011 sales will exceed $10 million; Qingdao Jason completion by the end of 2010 China's first 280 nm wavelength deep UV LED production line, R & D and production with independent innovation of intellectual property of deep UV LED products, they developed the first domestic deep UV LED epitaxial growth of production equipment, the equipment has been breaking the monopoly of foreign companies; by the end of 2011, three optical and CRYSTALISINC partners (USA) launched at that time the world's highest brightness of the deep UV LED chip......

    In addition there are many enterprises have invested in the blue ocean, the global research institutions also started the research in this field, it is understood that the leading research in the deep ultraviolet of the United States, but in recent years Japan has been beyond China; Taiwan and South Korea started relatively late, but also made some progress in this field in China; the field has developed quickly in recent years, equipment, materials and devices have accumulated some of the currently active application module development.

    The afternoon of September 6, 2013, major scientific research equipment development project of the National Academy of Sciences China bear - "deep ultraviolet solid-state laser source advanced equipment development project" in Beijing through the acceptance, make our country become the world's only capable of producing practical deep ultraviolet solid-state laser; as the domestic aluminum gallium nitride base important deep research and development institutions UV LED, Chinese Semiconductor Research Institute of semiconductor lighting R & D center in support of the National 863 plan, the preparation technology and other aspects of epitaxial growth and doping of gallium aluminum nitride materials and deep ultraviolet LED chip also has accumulated many years of experience in research and development, has been successfully achieved emission wavelength from 260nm to 300nm deep ultraviolet LED chip series, and already have industrial production capacity; small subject physical and mechanical and Electrical Engineering College of Xiamen University Professor Kang Chun Yung study group. After several years of research group, associate professor and doctoral research team Huang Kai Gao Na to borrow an ultrathin aluminum film cracked the deep UV LED devices "light extraction efficiency" problem, open the new methods and ideas for the future industrial application of such devices in health care, environmental protection, military and other fields.

    It is understood that the deep UV LED is in the technological development period, in terms of patents and intellectual property rights restrictions are less conducive to occupation, leading the commanding heights of the future. In the large-scale industry, but also the country's guidance and support, in order to achieve the core technology.

    With the leading technology in the field of foreign companies this year have increased the market, it is reported that Japan plans to construct the production line of Asahi test production has a bactericidal effect of ultraviolet LED in 2014, annual production capacity is unknown, but estimated Asahi subsidiary "Fuji branch will" cast billions of yen, imported by early the production equipment, to achieve the goals of revenue of 30 billion yen in the year 2020 goals. In addition, located in Tokyo, Japan, said the company is setting up a new deep UV LED plant, the goal is to begin production in 2014, UVB and UVC LED light source annual production capacity of more than 1 million groups. "

    The growth of the industry needs good soil

    Compared with visible LED, the efficiency and output power of the deep UV LED are generally low. In order to improve the AlGaN based deep UV LED low luminous efficiency and low optical power of two major performance bottlenecks fundamentally, emphasis should be on how to break through the low dislocation density AlN and AlGaN core material epitaxy and doping technology, design a high quantum efficiency and high light extraction efficiency of LED device structure, and the development of high the reliability of the chip preparation process and light bead packaging technology.

    Zhang Yun, research fellow, Institute of semiconductors, Chinese Academy of Sciences

    At present, high quality Al group III nitride materials is not high, the preparation of deep UV LED devices still exist in quantum efficiency, carrier injection efficiency and along the c axis positive problem light efficiency is low, thereby restricting high efficiency ultraviolet light emitting device fabrication.

    Chen Hangyang, Fujian Provincial Key Laboratory of semiconductor materials and applications, Xiamen University

    I think it should be led by the Ministry of science, from the national level to develop policies to support the development of such industries to encourage. And with the guidance of the government, investors will gradually change the attitude of the chase, thus a virtuous cycle

    Jason: Vice President of Qingdao Zhou Ling Electric Co. Ltd.

    With the development of China's economy, the improvement of living standards, people will be more pursuit of high quality of life, will pay more attention to health, these needs will certainly stimulate the development of deep UV LED market.

    Qingdao Jason Electric Co., Ltd. chairman Zhang Guohua

    Concluding remarks

    "The deep UV LED in our market is not fully open, due to technical difficulties, many want to enter the field of enterprise discouraged, but with the LED market increasingly saturated, companies want to do well in the LED market, in addition to find eyes, still need to have excellent technical support. "