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Metal–organic frameworks (MOFs) hold great promise as porous matrixes for the incorporation of Au nanoparticles (NPs) because of their rationally designed framework structures. Unfortunately, the as‐synthesized bulk MOFs usually vary in the range of micrometer or sub‐micrometer size, rendering extremely longer molecular diffusion distance of chemical species. 2D MOF nanosheets with extended lateral...
Here we report an active microresonator by integrating a thin layer of all-inorganic CsPbBr3 nanocrystals (NCs) to a silica microsphere. We also demonstrate the transition from spontaneous emission to stimulated emission (SE) of CsPbBr3 with varying pump power. Further lasing is expected by improving the fabrication technology. Our configuration may provide a route to low threshold and compact lasers,...
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