• • Dark current as low as 30.9 fA at the lowest oxygen vacancy content enables ultra-low-noise operation, critical for photon-starved astronomical and medical imaging where signal-to-noise ratio dictates detection limits.
• • SBUV responsivity of 237 A W−1 and photo-to-dark current ratio of 8.7 × 10^8 under 254 nm illumination demonstrate high sensitivity and strong solar-blind/visible rejection, essential for flame detection and UV astronomy.
• • X-ray sensitivity of 10,736 μC cm−2 Gy_air−1 is 477 times higher than conventional a-Se detectors, offering a pathway to lower patient dose in medical radiography and improved contrast in non-destructive testing.
• • Response speed (τr1/τd1) of 155/34 ms under SBUV and stable performance under long-term X-ray irradiation indicate sufficient temporal resolution for imaging applications and robust operational lifetime.