DUV LED (UV-LED) are used in bio-medical, security identification, purification (water, air, etc.) fields, computer data storage, and military affairs. And as technology advances, new applications will continue to emerge to replace the existing technologies and products, UV-LED has a broad market prospects, such as UV LED light therapy is very popular instrument is the future of medical equipment, but the current technology is still in Growth period.
Japan, with its blue LED in the field of first-mover advantage, in the UV-LED remarkable progress. Nichia in particular in the study 365nmUV-LED lead; outside of the United States in the study of deep purple lead, but in recent years Japan has been exceeded; China's Taiwan and South Korea started relatively late, in the field has made some progress; China has developed rapidly in recent years in this field. Blu-ray is different from UV-LED is in the current period of technological development, patent and intellectual property in less restrictive, is conducive to the occupation, to lead the future of the technology high ground. China UV LED equipment, materials and device aspects of the accumulation of some, to the currently active application module development. UV-LED formed in a large-scale industry is needed before national guidance and support in order to obtain opportunities in the core technology.
The main objective is to study the future of high-quality epitaxial growth technology DUV materials; high Al composition AlGaN material growth techniques and doping technology; deep UV LED structure design; wavelength of 300nm the following LED device chip production processes and packaging technologies; for medical , Sterilization and purification applications in the development and application of UV light source module.
Technical problems to be addressed is the high-quality AlN templates on sapphire substrates in the MOCVD epitaxial growth; AlGaN quantum-well light-emitting mechanism and structure control; P-type doping of high Al composition of AlGaN; UV LED light extraction efficiency technologies; DUV LED device technology and packaging technology; deep UV LED's research and development of application modules.
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