| abstract |
The invention belongs to the technical field of electroluminescent materials, and discloses a FAX-modified metal halide perovskite quantum dot, a preparation method and an application thereof. Dissolve the metal halide BX y and formamidine hydrohalide FAX in the long-chain ligand to obtain a precursor solution, then inject rubidium source and/or cesium source for reaction, add a precipitant to precipitate and separate the product, and disperse it in the organic Solvent to obtain FAX-modified metal halide perovskite quantum dot solution. The perovskite quantum dots prepared by the invention have the advantages of small particle size, controllable particle size, narrow size distribution, high fluorescence quantum yield of solid-state thin film, etc., and have great application prospects in high-efficiency blue light and white light electroluminescence. |