Marco Girolami, Fabio Matteocci, Sara Pettinato, Valerio Serpente, Eleonora Bolli, Barbara Paci, Amanda Generosi, Stefano Salvatori, Aldo Di Carlo, Daniele M Trucchi
Metal-halide perovskites are revolutionizing the world of X-ray detectors, due to the development of sensitive, fast, and cost-effective devices. Self-powered operation, ensuring portability and low power consumption, has also been recently demonstrated in both bulk materials and thin films. However, the signal stability and repeatability under continuous X-ray exposure has only been tested up to a few hours, often reporting degradation of the detection performance. Here it is shown that self-powered direct X-ray detectors, fabricated starting from a FAPbBr3 submicrometer-thick film deposition onto a mesoporous TiO2 scaffold, can withstand a 26-day uninterrupted X-ray exposure with negligible signal loss, demonstrating ultra-high operational stability and excellent repeatability...
April 26, 2024: Nano-Micro Letters