2020-09-21

Hiroshima University in Japan Proves 222 nm UVC Light Effectively Deactivate SARS-CoV-2 Virus

Researchers at Hiroshima University offered first proof that UVC light with a 222 nm wavelength, which many claim to be safer for human and animals, can effectively kills the SARS-CoV-2 virus, pathogen of COVID-19. The study was published in the American Journal of Infection Control on September 4, 2020, titled “Effectiveness of 222-nm ultraviolet light on disinfecting SARS-CoV-2 surface contamination.” The article demonstrated the results of an in vitro experiment of the research team which showed that 99.7% of the SARS-CoV-2 viral culture...
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2015-06-08

Japanese Researchers Develop Silicon QD-based White-blue LED

A Si quantum dot (QD)-based hybrid inorganic/organic light-emitting diode (LED) that exhibits white-blue electroluminescence has been fabricated by Professor Ken-ichi SAITOW (Natural Science Center for Basic Research and Development, Hiroshima University), Graduate student Yunzi XIN (Graduate School of Science, Hiroshima University), and their collaborators. A hybrid LED is expected to be a next-generation illumination device for producing flexible lighting and display, and this is achieved for the Si QD-based white-blue LED. For details, refer to "White-blue electroluminescence from a Si quantum dot hybrid light-emitting diode," in Applied Physics Letters; DOI: 10.1063/1.4921415.
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Aledia, the leader in nanowire and 3D silicon-based microLED display technology, is proud to announce it is a winner in the Computing, Chips, and Foundational Technology category in Fast Company’s Next Big Things in Tech list. This prest... READ MORE

Wearables are evolving into everyday health companions. To reliably capture vital signs such as blood oxygen saturation (SpO₂) with in-ear or other compact wearable devices, optical components are required that take minimal space while deliver... READ MORE