Single-atom Pt sites stabilized by aniline stacked on graphene exhibit excellent electrocatalytic activity and durability for the hydrogen evolution reaction.

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A zero-dimensional all-inorganic CsPbBr3 nanocrystal embedded Cs4PbBr6 scintillator has been achieved. Owing to the low dimensional quantum effect, this all-inorganic scintillator exhibits desirable scintillation performance.

Hybrid methylammonium lead tribromide (MAPbBr 3 ) perovskite has attracted great attention in ionization radiation detection. However, the charge collection remains a challenge. Here, fast response and high-sensitivity Xray detection based on MAPbBr 3 single crystals with a surface barrier Schottky diode has been achieved at room temperature. The Schottky surface barrier can overcome the large leakage current at a high electrical field, enabling us to reduce the noise and increase the charge collection efficiency. This surface barrier device has been demonstrated a 3 times improvement over the photoconductor based X-ray detector, which enables usage in nuclear medicine, especially for X-ray imaging technology.