Fig. 4: X-ray imaging properties of MAPbI3 detector at RQA5.
From: High-sensitivity high-resolution X-ray imaging with soft-sintered metal halide perovskites
a, X-ray response of the pixelated MAPbI3 imager under an electrical field of 0.03 V μm−1 at different doses. b, Linearity plot of the extracted charges versus dose in the RQA5 (blue) and 15 mm Al-filtered RQA5 (red) spectrum. c, MTF curves of the pixelated MAPbI3 imager for two different doses (blue and green) and MTF of commercial indirect-conversion detector based on the complementary metal–oxide–semiconductor technology (red). d, X-ray image with the resolution of phantom structures taken by the indirect-conversion (left) and MAPbI3 detector (MAPI; right). e, Photograph of part of a hearing aid (left) and a metallic coronary stent (right). f, X-ray image of the hearing aid (left) and coronary stent (right) taken by the pixelated MAPbI3 detector at a dose of 4.17 µGyair per frame. Even the mesh of the stent with a cross-section size of 100 μm × 200 μm can be resolved.
