A team of researchers has demonstrated the use of solution-processed lead halide perovskites, specifically methylammonium lead iodide (MAPbI3), for the direct detection of X-ray photons. This material offers a high absorption cross-section for X-rays due to the heavy Pb and I atoms, along with fast photoresponse. The study presents both photovoltaic and photoconductive devices based on MAPbI3, achieving high X-ray sensitivity and responsivity, comparable to conventional solid-state technology. The photovoltaic devices, such as p-i-n photodiodes, exhibit a specific X-ray sensitivity of 25 μC mGy⁻¹ cm⁻³ and a responsivity of 1.9×10⁴ carriers/photon. Photoconductive devices, with thicker layers, also show high sensitivity, with up to 2×10⁴ charge carriers generated per 8 keV photon. The results indicate that MAPbI3 is a promising material for X-ray detection due to its high sensitivity and fast response time. The study also highlights the potential of solution-processed perovskites for low-cost, large-area X-ray detectors, suitable for medical and security applications. The research demonstrates that MAPbI3 can be used in both photovoltaic and photoconductive configurations, with the latter showing improved performance in the X-ray regime. The devices were fabricated using solution-processing techniques, enabling low-temperature, non-vacuum deposition. The study also shows that MAPbI3-based detectors can produce high-contrast X-ray images with good spatial resolution, revealing internal details of objects. The findings suggest that solution-processed perovskites could replace conventional X-ray detectors in various applications, offering advantages in cost, scalability, and performance. The research underscores the potential of lead halide perovskites for X-ray detection, with further improvements needed in mobility and lifetime to enhance sensitivity. The study provides a foundation for future developments in X-ray detection technology using solution-processed perovskites.A team of researchers has demonstrated the use of solution-processed lead halide perovskites, specifically methylammonium lead iodide (MAPbI3), for the direct detection of X-ray photons. This material offers a high absorption cross-section for X-rays due to the heavy Pb and I atoms, along with fast photoresponse. The study presents both photovoltaic and photoconductive devices based on MAPbI3, achieving high X-ray sensitivity and responsivity, comparable to conventional solid-state technology. The photovoltaic devices, such as p-i-n photodiodes, exhibit a specific X-ray sensitivity of 25 μC mGy⁻¹ cm⁻³ and a responsivity of 1.9×10⁴ carriers/photon. Photoconductive devices, with thicker layers, also show high sensitivity, with up to 2×10⁴ charge carriers generated per 8 keV photon. The results indicate that MAPbI3 is a promising material for X-ray detection due to its high sensitivity and fast response time. The study also highlights the potential of solution-processed perovskites for low-cost, large-area X-ray detectors, suitable for medical and security applications. The research demonstrates that MAPbI3 can be used in both photovoltaic and photoconductive configurations, with the latter showing improved performance in the X-ray regime. The devices were fabricated using solution-processing techniques, enabling low-temperature, non-vacuum deposition. The study also shows that MAPbI3-based detectors can produce high-contrast X-ray images with good spatial resolution, revealing internal details of objects. The findings suggest that solution-processed perovskites could replace conventional X-ray detectors in various applications, offering advantages in cost, scalability, and performance. The research underscores the potential of lead halide perovskites for X-ray detection, with further improvements needed in mobility and lifetime to enhance sensitivity. The study provides a foundation for future developments in X-ray detection technology using solution-processed perovskites.