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Lead‐Free Cesium Manganese Halide Nanocrystals Embedded Glasses for X‐Ray Imaging
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Lead‐Free Cesium Manganese Halide Nanocrystals Embedded Glasses for X‐Ray Imaging
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Journal Article
Lead‐Free Cesium Manganese Halide Nanocrystals Embedded Glasses for X‐Ray Imaging
2023
Overview
The toxicity of heavy‐metal Pb and instability of lead‐based halide perovskite nanomaterials are main factors to impede their practical applications in the fields of solar cells, LEDs and scintillators. In this paper, all inorganic lead‐free cesium manganese halide nanocrystals are synthesized in glass for the first time. Red photoluminescence with broad PL band, negligible self‐absorption and a high photoluminescence quantum yield of 41.8% is obtained. In addition, modulating halide component can change the Mn2+ ions coordination environment to obtain tunable photoluminescence from red to green. More importantly, cesium manganese halide nanocrystals embedded glasses exhibit outstanding long‐term stabilities. Theses cesium manganese halide nanocrystals embedded glasses are also highly stable against high energy irradiation and exhibit highly efficient radioluminescence, making them promising for high‐resolution X‐ray imaging. These results demonstrate that cesium manganese halide nanocrystals embedded glasses are promising eco‐friendly candidates for applications in light‐emitting diodes and scintillators. Lead‐free cesium manganese halide NCs embedded glasses exhibit negligible self‐absorption, long‐term stability, and high PL QY as well as excellent X‐ray scintillation performance and highly resolved X‐ray imaging.
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,Wiley
