August 2018: Prof Tom Wu: "All-inorganic perovskite nanocrystal scintillators”
“Colorful visualization of X-ray images using light-emitting nanocrystals”
In this work, an all-inorganic perovskite nanocrystal scintillator was fabricated, which can absorb high-energy X-ray photons and convert them into low-energy visible photons. Compared with conventional scintillators, these perovskite nanomaterials are solution-processable at a relatively low temperature and can generate emissions that are easily tunable across the visible spectrum by tailoring the anionic component of colloidal precursors during synthesis. The highly sensitive X-ray detector was used for X-ray radiography and inspection of electronic circuit boards.
Read the full paper, as published in Nature (Volume 561, pp 88–93, 2018).