Liu Shangfeng, Luo Wei, Li Dan, Yuan Ye, Tong Wei, Kang Junjie, Wang Yixin, Li Duo, Rong Xin, Wang Tao, Chen Zhaoying, Li Yongde, Wang Houjin, Wang Weiyun, Hoo Jason, Yan Long, Guo Shiping, Shen Bo, Cong Zhe, Wang Xinqiang
State Key Laboratory of Artificial Microstructure and Mesoscopic Physics School of Physics, Nano-Optoelectronics Frontier Center of Ministry of Education (NFC-MOE) Peking University Beijing 100871 China.
Songshan Lake Materials Laboratory Dongguan Guangdong 523808 China.
Adv Funct Mater. 2021 Feb 10;31(7):2008452. doi: 10.1002/adfm.202008452. Epub 2020 Nov 25.
The world-wide spreading of coronavirus disease (COVID-19) has greatly shaken human society, thus effective and fast-speed methods of non-daily-life-disturbance sterilization have become extremely significant. In this work, by fully benefitting from high-quality AlN template (with threading dislocation density as low as ≈6×10 cm) as well as outstanding deep ultraviolet (UVC-less than 280 nm) light-emitting diodes (LEDs) structure design and epitaxy optimization, high power UVC LEDs and ultra-high-power sterilization irradiation source are achieved. Moreover, for the first time, a result in which a fast and complete elimination of SARS-CoV-2 (the virus causes COVID-19) within only 1 s is achieved by the nearly whole industry-chain-covered product. These results advance the promising potential in UVC-LED disinfection particularly in the shadow of COVID-19.
新型冠状病毒肺炎（COVID-19）在全球范围内的传播极大地动摇了人类社会，因此，有效且不干扰日常生活的快速消毒方法变得极为重要。在这项工作中，通过充分利用高质量的氮化铝（AlN）模板（位错密度低至≈6×10/cm）以及出色的深紫外（UVC，波长小于280nm）发光二极管（LED）结构设计和外延优化，实现了高功率UVC LED和超高功率消毒辐照源。此外，首次通过几乎覆盖整个产业链的产品实现了在仅1秒内快速且完全消除严重急性呼吸综合征冠状病毒2（SARS-CoV-2，引发COVID-19的病毒）的结果。这些成果提升了UVC-LED消毒的潜在应用前景，特别是在COVID-19的背景下。
