UVC LED epidemic and disinfection products to play a more active role in virus epidemic prevention.
The new crown pneumonia epidemic is rapidly gaining popularity in disinfection products.
The reporter learned from Sanan Optoelectronics that, as a leading domestic supplier of deep UV LED chips, the company’s deep UV UVC LED chips are widely used in terminal kill products and application scenarios such as disinfection of air, water and surface of objects. Since the outbreak, the company has received a surge in demand from many customers and the government, and the company’s UVC chips have been in full production.
It is reported that the company is currently conducting joint tests with relevant domestic scientific research institutions to promote UVC LED epidemic and disinfection products to play a more active role in virus epidemic prevention.
UV kill advantage
It is currently known that all bacteria, viruses and other microorganisms in the human living environment can be killed by deep doses of deep ultraviolet (UVC) radiation. During the “SARS” period, experts from the Institute of Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention found that SARS virus can be killed by irradiating the coronavirus for 30 minutes with ultraviolet light intensity greater than 90 μW / cm2.
According to the “Diagnosis and Treatment Scheme for Pneumonitis Infected by New Coronavirus (Trial Fifth Edition)” issued by the National Health and Health Committee on February 5, the new coronavirus is sensitive to ultraviolet rays and heat, and can be effectively destroyed at 56 degrees Celsius for 30 minutes and 75 degrees ethanol Live virus.
Some experts point out that the principle of ultraviolet disinfection is to use high-energy ultraviolet light to break the double-stranded DNA of virus DNA, thereby achieving the inactivation of bacteria and viruses. Although in this epidemic, ordinary third-party testing laboratories were not qualified to obtain new coronaviruses for experimental testing, it can be determined that UVC has absolute damage to DNA and RNA (ribonucleic acid), and the virus Belongs to RNA. In practice, the UVC radiation dose to the new coronavirus requires further experiments and practices in cooperation with relevant government departments and scientific research institutions to further clarify.
Compared with chemical sterilization, UV has the advantage of high sterilization efficiency. Inactivation is generally completed within a few seconds without generating other chemical pollutants. Because it is easy to operate and suitable for all spaces such as public and home, UV germicidal lamps have become a popular item on major e-commerce platforms. It is also an important sterilization and disinfection equipment in front-line medical and health institutions.
Some experts from the Institute of Semiconductors of the Chinese Academy of Sciences pointed out that from the current application, deep UV LEDs are widely used in civil fields such as water purification, air purification, and biological detection. In addition to sterilization, UV light sources also have broad application prospects in many emerging fields such as biochemical detection, sterilization medical treatment, polymer curing and industrial photocatalysis.
Or prop up trillions of industries
At present, most of the deep ultraviolet light sources used for disinfection and sterilization in civil and industrial fields are mercury lamps. Due to the significant impact of mercury on human society and the environment, from 2020, the international Minamata Convention, which restricts the use and release of mercury, has officially entered into force, and traditional mercury lamps will restrict and ban production and use. And deep ultraviolet LED chips based on third-generation semiconductor materials such as gallium nitride have become the new choice of environmentally friendly and efficient ultraviolet light sources. This all-solid-state light source has a small volume, high efficiency, and long life. Just a chip module the size of a thumb cover, it can emit ultraviolet light that is stronger than a mercury lamp. Experts from the Semiconductor Research Institute of the Chinese Academy of Sciences pointed out that the use of deep ultraviolet LEDs to replace traditional mercury lamps in sterilization applications is similar to the application of white LEDs in the lighting field, which will form a huge emerging industry. It is entirely possible for deep ultraviolet LEDs to develop into a new trillion industry different from LED lighting.
In comparison, deep UV LEDs currently have shortcomings in terms of materials and optical power.
San’an Optoelectronics introduced to the Securities Times e company reporter, “At present, in terms of materials, mainly relying on foreign countries, the cost is higher, and even the price increases. Many domestic manufacturers believe that the market volume of UVC is not up, and they are unwilling to invest resources in R & D and production , Resulting in fewer suppliers to choose from. ”
In terms of optical power, Sanan UVC performance is already internationally equivalent and can reach 2-4% light efficiency. However, for some special alternative markets, there is still a lot of room for performance and cost.
Sanan Optoelectronics said, “I believe that with everyone’s emphasis on UVC deep ultraviolet applications, more and more companies will invest in research and production of UVC materials, which will help reduce costs. Sanan Optoelectronics in the UVC extension, Chips and packages continue to increase investment in research and development to ensure cost-effective advantages and open more applications. ”
In addition, as an emerging technology, the cost of UVC is currently higher than that of mercury lamps. In this regard, Sanan Optoelectronics believes that over time, improvements in materials, manufacturing, yield, and performance will greatly reduce costs. As in the past 20 years, the cost trend of LED lighting has changed.
UVC chips are in full production
Looking back, as early as 2014, Sanan Optoelectronics has been the first to invest in UVC deep ultraviolet epitaxy, chip and packaging R & D in China. After several years of cultivation, Sanan Optoelectronics’ deep-UV UVC products in the 260 ~ 280nm band have accumulated customers More than a hundred homes.
According to Sanan Optoelectronics, at present, the company’s deep ultraviolet LED has entered the sterilization, water purification and other application markets of first-line home appliance brands, formed strategic cooperation with home appliance brand companies, and completed the design of sterilized UVC LED modules. Based on the continuous breakthrough of Sanan UVC LED in new application fields, the Sanan Optoelectronics team is continuing to research and explore more UV-related emerging application scenarios with international manufacturers and several well-known universities at home and abroad. In addition to general sterilization applications, Sanan Optoelectronics will also expand its applications in plant growth lighting, food preservation after picking, food processing, biological testing, material modification, and marine biological antifouling.
It is understood that, because the technology and characteristics of UVC chips are significantly different from ordinary LED chips, they have certain barriers and require independent production lines for production.
Currently Sanan Optoelectronics’ UVC chips are in full production, and the market’s competitive advantage comes from its technology accumulation in the field of deep UV UVC LED chips. The reporter combed the public information and found that Sanan Optoelectronics has undertaken tasks related to the national key R & D plan for ultraviolet and deep ultraviolet projects since 2015, and won the second prize of National Science and Technology Progress in the same year.
According to the company, the company has developed a variety of sizes of UVC chips and small, medium, large and ultra-high power UVC LED products for known effective sterilization bands. It has successfully passed verification tests and has been introduced to many domestic and foreign well-known brand customers. It has been involved in areas including surface Sterilization, dynamic / static water sterilization and air purification and disinfection equipment. As of 2019, Sanan Optoelectronics’ deep UV UVC products have reached a cumulative output of 1kk and achieved monthly production capacity of more than 1KK.
A source from Sanan Optoelectronics said that Sanan will continue to increase investment in technology research and development in UVC related fields. Sanan is optimistic about the future potential of the UVC market, positioning it as an important product and market target for the company’s LED industry in the future. “This epidemic situation may also make people attach great importance to UV and UV LEDs, and especially pay attention to people’s public health and safety, and provide a good opportunity for the development of UV and UV LEDs.”
It is reported that since the outbreak, Sanan Optoelectronics has jointly launched an initiative with Guoxing Optoelectronics. It is willing to cooperate with major scientific research institutions and universities in an open attitude to provide UVC LEDs with effective sterilization bands for UV irradiation of new coronaviruses. Bacterial test and research. “We welcome all interested and capable manufacturers to work together to develop more anti-epidemic equipment and solutions.” Sanan Optoelectronics said.