To realize the potential of artificial intelligence in medical imaging, improvements in imaging capabilities are required, as well as advances in computing power and algorithms. Hybrid inorganic–organic metal halide perovskites, such as methylammonium lead triiodide (MAPbI₃), offer strong X-ray absorption, high carrier mobilities (µ) and long carrier lifetimes (τ), and they are promising materials for use in X-ray imaging. However, their incorporation into pixelated sensing arrays remains challenging. Here we show that X-ray flat-panel detector arrays based on microcrystalline MAPbI₃ can be created using a two-step manufacturing process. Our approach is based on the mechanical soft sintering of a freestanding absorber layer and the subsequent integration of this layer on a pixelated backplane. Freestanding microcrystalline MAPbI₃ wafers exhibit a sensitivity of 9,300 µC Gy_air^–1 cm^–2 with a μτ product of 4 × 10^–4 cm² V^–1, and the resulting X-ray imaging detector, which has 508 pixels per inch, combines a high spatial resolution of 6 line pairs per millimetre with a low detection limit of 0.22 nGy_air per frame.

要实现人工智能在医学成像中的潜力，需要提高成像能力，以及计算能力和算法的进步。混合无机-有机金属卤化物钙钛矿，例如甲基三碘化铅 (MAPbI ₃ )，具有强 X 射线吸收、高载流子迁移率 ( µ ) 和长载流子寿命 ( τ )，它们是用于 X 射线的有前途的材料成像。然而，将它们整合到像素化传感阵列中仍然具有挑战性。_{在这里，我们展示了基于微晶 MAPbI 3}的 X 射线平板探测器阵列可以使用两步制造过程创建。我们的方法基于独立吸收层的机械软烧结以及随后将该层集成到像素化背板上。独立式微晶 MAPbI ₃晶圆表现出 9,300 µC Gy _air ^{– 1}  cm ^–2的灵敏度， μτ积为 4 × 10 ^–4  cm ²  V ^–1，由此产生的 X 射线成像探测器每英寸有 508 个像素，结合了每毫米 6 线对的高空间分辨率和 每帧0.22 nGy_{空气的低检测限。}