As an alternative to MCPs and PMTs, it is proposed to use AlGaN-based UV detectors. These detectors are based on ultra-wide bandgap AlGaN, which allows for solar blind detection of light with wavelength 10, 000 hrs), large detection area (>1 mm2), wide operating temperature window (-50 400C), and radiation hardness.
Benefit: The detectors developed in this project and those already commercialized by Adroit Materials for slightly longer wavelength (240-280 nm APDs) can address current market when operated in the linear range and at low voltages. As the only detector that is not sensitive to sunlight, the AlGaN-based detectors from Adroit Materials occupy a unique market position. On the other hand, this also means that UVA and UVB detection is currently not possible with these detectors. This reduces the application space (in the area of wearables UVA and UVB detection is important). The resulting market size is likely more in the range of $1.2-1.5B mostly driven by UV printing and curing (https://www.credenceresearch.com/report/uv-cured-resins-market).
Keywords: APD, APD, radiation hard, AlGaN, Vacuum UV, Solar blind
