Abstract
Flexible luminescent films have great potential for development in various industries and are therefore attracting much attention. Cesium halide lead perovskites still face many problems in terms of stability and toxicity. In this work, Eu3+ ions were used as dopant to synthesize CsPbCl3:Eu3+ perovskite nanocrystals (NCs), and their structure and properties were studied to achieve a reduction in toxicity to the CsPbCl3 nanocrystalline heavy element lead. CsPbCl3:Eu3+ NCs demonstrated improved luminescence performance as well as stable performance. Further, the CsPbCl3:Eu3+ NCs prepared by the heat injection method coated with a layer of TPU film on its surface, showing excellent tensile properties, waterproof properties. CsPbCl3:Eu3+ NCs show a bright purple under the illumination of ultraviolet, providing a new idea matrix for the luminescent film.
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