Magnetic micro- and nanodisks represent a peculiar class of systems that combines the benefits of both thin films and nanoparticles, thus representing a bridge between them. The progress in designing, fabricating, and manipulating micro- and nanodisk systems is continuously enhancing the ability to tailor their properties, opening new opportunities to use them in fundamental studies and to explore new frontiers in materials science, physics, and other related fields.

In this paper, published on Nano-Micro Letters, we show that self-powered X-ray detectors, based on FAPbBr₃ 255-nm-thick films deposited onto mesoporous TiO₂ scaffolds, can withstand a 26-day X-ray exposure with no signal loss, demonstrating ultra-high operational stability. Sensitivity is evaluated to be 7.28 C Gy⁻¹ cm⁻³, an unprecedented value for thin-film-based photoconductors and photodiodes for “hard” X-rays. Response of submicrometer-thick perovskite films to the X-rays produced by a medical linear accelerator used for cancer treatment is here demonstrated for the first time.