The article "Detection of X-ray photons by solution-processed lead halide perovskites" by Yakunin et al. (2015) explores the use of solution-processed organic-inorganic perovskites, specifically methylammonium lead iodide (MAPbI₃), for sensitive detection of X-ray photons. The authors demonstrate that these materials can be used for direct photon-to-current conversion, offering high X-ray sensitivity (up to 25 μC mGyair⁻¹ cm⁻³) and responsivity (1.9×10⁴ carriers/photon), comparable to current solid-state technology. The study includes both photovoltaic and photoconductive device architectures, showing that MAPbI₃ exhibits excellent performance in the visible and near-infrared spectral regions, as well as under X-ray illumination. The fast response times and high dynamic range of the devices make them promising for applications such as medical diagnostics and security imaging. The low-temperature, solution-processed nature of MAPbI₃ also enables flexible integration into industrial read-out electronics, making it a potentially cost-effective and versatile material for X-ray detection.The article "Detection of X-ray photons by solution-processed lead halide perovskites" by Yakunin et al. (2015) explores the use of solution-processed organic-inorganic perovskites, specifically methylammonium lead iodide (MAPbI₃), for sensitive detection of X-ray photons. The authors demonstrate that these materials can be used for direct photon-to-current conversion, offering high X-ray sensitivity (up to 25 μC mGyair⁻¹ cm⁻³) and responsivity (1.9×10⁴ carriers/photon), comparable to current solid-state technology. The study includes both photovoltaic and photoconductive device architectures, showing that MAPbI₃ exhibits excellent performance in the visible and near-infrared spectral regions, as well as under X-ray illumination. The fast response times and high dynamic range of the devices make them promising for applications such as medical diagnostics and security imaging. The low-temperature, solution-processed nature of MAPbI₃ also enables flexible integration into industrial read-out electronics, making it a potentially cost-effective and versatile material for X-ray detection.