The Luminescent Properties and Applications of Lead-Free Halide Perovskites Doped With Different Ion Strategies
The luminescent properties of lead-free halide perovskites in visible and near infrared region doped with different ion doping strategies and their application research progress were analyzed.Lead-free halide perovskites are widely used in lighting,display,anti-counterfeiting and bio-imaging due to their unique optical properties.The regulation of luminous properties of fluorescent materials is beneficial to expand its application in temperature sensing,anti-counterfeiting recognition,venous imaging and other technical fields.Ordinary lead-free halide per-ovskites have low luminous efficiency and single luminous properties,which limits their practical application.Therefore,different types of ion doping strategies are used to achieve luminescence regulation in various visible and near-infrared regions and expand the application scenarios of lead-free halide perovskites.Lead-free halide per-ovskites based on different ion doping strategies have been widely used in the field of visible and near-infrared light,and fluorescent materials with high fluorescence quantum yields have been continuously developed.However,most of the reports at this stage only focus on the study of luminous efficiency.Current research tasks should focus on the improvement of luminescent heat/water stability,synthetic raw material price and synthetic process complexi-ty so that the commercial value of high-efficiency luminescent materials is explored.
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