Industrial gas major Taiyo Nippon Sanso Corporation (TNSC) and Japan-based scientific research institute RIKEN have tested new LED technology to be used across a wide range of fields including sterilisation, disinfection, and medicinal applications.

The companies – which have conducted joint research in the sector – demonstrated AlGaN (aluminium gallium nitride) deep ultraviolet LED electroluminescence (EL) at a short wavelength of 226 nm (nanometre) using TNSC’s MOCVD (metalorganic vapour-phase epitaxy) technology. 

MOCVD is a process used for creating high purity crystalline compound semiconducting thin films and micro/nano structures. 

Having previously conducted tests with a 280 nm emission wavelength, the new test reported EL emission with a 226 nm with the TNSC SR4000HT in 2-inch x 3 wafers configuration. 

According to a study from the University of California – Santa Barbara, UTV LEDs have also proven effective in eliminating coronavirus from surfaces, with the potential for also decontaminating air and water that has come into contact with the SARS-CoV-2 virus. 

A major application for the technology is the disinfection of personal protective equipment (PPE), surfaces, floors, and within HVAC systems.