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@article{faucris.116365084,
abstract = {The evolution of real-time medical diagnostic tools such as angiography and computer tomography from radiography based on photographic plates was enabled by the development of integrated solid-state X-ray photon detectors made from conventional solid-state semiconductors. Recently, for optoelectronic devices operating in the visible and near-infrared spectral regions, solution-processed organic and inorganic semiconductors have also attracted a great deal of attention. Here, we demonstrate a possibility to use such inexpensive semiconductors for the sensitive detection of X-ray photons by direct photon-to-current conversion. In particular, methylammonium lead iodide perovskite (CH3NH3PbI3) offers a compelling combination of fast photoresponse and a high absorption cross-section for X-rays, owing to the heavy Pb and I atoms. Solution-processed photodiodes as well as photoconductors are presented, exhibiting high values of X-ray sensitivity (up to 25 μC mGyair-1 cm-3) and responsivity (1.9 × 104 carriers/photon), which are commensurate with those obtained by the current solid-state technology.},
author = {Yakunin, Sergii and Sytnyk, Mykhailo and Kriegner, Dominik and Shrestha, Shreetu and Richter, Moses and Matt, Gebhard and Azimi, Hamed and Brabec, Christoph and Stangl, Julian and Kovalenko, Maksym V. and Heiß, Wolfgang},
doi = {10.1038/nphoton.2015.82},
faupublication = {yes},
journal = {Nature Photonics},
keywords = {Engineering controlled terms: Chemical detection; Diagnosis; Diagnostic radiography; Infrared devices; Lead; Optoelectronic devices; Perovskite; Photons; Single crystals; Solid state device structures Absorption cross sections; Inorganic semiconductors; Medical diagnostic tools; Sensitive detection; Solid state semiconductors; Solid state technology; Solution-processed; Visible and near infrared Engineering main heading: X ray radiography},
pages = {444-449},
peerreviewed = {Yes},
title = {{Detection} of {X}-ray photons by solution-processed lead halide perovskites},
volume = {9},
year = {2015}
}