We report on solar-blind ultraviolet, AlxGa1-xN- based, p-i-n, focal plane array (FPA) with 92% operability. At the peak detection wavelength of 278 nm, 320 × 256 -FPA-pixel showed unbiased peak external quantum efficiency and responsivity of 49% and 109 mA/W, respectively, increasing to 66% under 5 V of reverse bias. Electrical measurements yielded a low-dark current density: <7 × 10-9 A/cm2 , at FPA operating voltage of 2 V of reverse bias.
- aluminum gallium nitride
- focal plane array
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering