Congratulations to the UCSB UV LED research group for being featured in Compound Semiconductor Magazine!
A team from the University of California, Santa Barbara (UCSB), is claiming to have produced the most comprehensive study on the performance of deep-UV devices with differing dimensions and emission wavelengths.
“What's interesting about our work is that we saw an external quantum efficiency in microLEDs at least as good as in big LEDs, which is not so typically seen,” remarks team spokesman Yfian Yao.
This is a promising finding for deep-UV LEDs, which have the potential to provide a more environmentally friendly alternative to mercury lamps for deactivating all known microorganisms and viral pathogens, including SARS-CoV-2, MERS and SARS.
<for more details click on the link>
Based on conversations with UV LED vendors, the team expects that the introduction of full packaging will roughly double the output power of their devices.
As well as reporting their better, more recent bare-wafer results, the team plans to incorporate additional structures into their deep-UV emitters, such as array of microLEDs with common contact. This will enable devices to combine a high external quantum efficiency with a high absolute power.
Reference: Y. Yao. et al. Appl. Phys. Express 15 064003 (2022)