Silanna UV Announces Patented Approach in UV-C LED Technology

Newly-developed ultraviolet LEDs from Silanna UV, based in Brisbane, Australia, are ready to take nitrate sensing applications into a new era, promising cleaner and safer drinking water that is free from nitrate contamination. Silanna’s SF1 series of LEDs leverage the company’s patented short period superlattice (SPSL) technology that provides industry-leading performance and power output in the challenging 230nm-260nm UV range (Far UV-C and Deep UV-C). Silanna now provides a complete reference design for a nitrate detector based on this technology.

As well as nitrate detection, Silanna’s SF1 and SN3 UV LEDs are ideal for sterilization, water and gas sensing, instrumentation, and medical analyzers.

Nitrate contamination of drinking water is a growing threat around the world, with nitrates from agricultural, industrial and natural biological processes increasingly contaminating water supplies as populations grow and expand. Detection of nitrates traditionally relied on an expensive process in which broadband light generated by a UV lamp is passed through spectroscopy to extract the far UV-C wavelength needed for sensing.

Silanna’s SF1 series LEDs provide a cost-effective, compact, reliable and low-power alternative to traditional methods of nitrate detection – and, thanks to patented technology, now lead the industry. In particular, SF1 series UV-C emitters with a peak wavelength under 235nm and a Full-Width-Half-Max (FWHM) of 10nm are an ideal candidate for nitrate sensing applications.

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