• Self-powered direct X-ray detectors, based on FAPbBr₃ 255-nm-thick films deposited onto mesoporous TiO₂ scaffolds, can withstand a 26-day uninterrupted X-ray exposure with negligible signal loss, demonstrating ultra-high operational stability.

• Bulk specific sensitivity is evaluated to be 7.28 C Gy⁻¹ cm⁻³ at 0 V, an unprecedented value in the field of thin-film-based photoconductors and photodiodes for “hard” X-rays.

• Sensitivity 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.

中文翻译：

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用于超稳定自供电直接 X 射线探测器的金属卤化物钙钛矿亚微米厚薄膜

• 自供电直接X射线探测器基于沉积在介孔TiO _{2支架上的FAPbBr 3} 255 nm厚薄膜，可以承受26天不间断的X射线照射，信号损失可以忽略不计，表现出超高的操作稳定性。

• 0 V 时的体比灵敏度为 7.28 C Gy ^-1  cm ^-3，这在基于薄膜的光电导体和“硬”X 射线光电二极管领域是前所未有的值。

• 这里首次证明了亚微米厚的钙钛矿薄膜对用于癌症治疗的医用直线加速器产生的 X 射线的敏感性。