| abstract |
The invention relates to a preparation method of a hybrid perovskite quantum dot material, which belongs to the technical field of preparation of nanometer materials and photoelectric materials. The hybrid perovskite quantum dot material is composed of inner core and surface ligands, and the structural formula of the inner core is: R 1 NH 3 AB 3 or (R 2 NH 3 ) 2 AB 4 . The surface of the organic-inorganic hybrid perovskite quantum dots synthesized by this method is covered with surface ligands, which can be stably dispersed in various organic solvents such as toluene and chloroform, providing a good source for the processing and application of hybrid perovskite quantum dot materials. Great convenience. The quantum dot material prepared by the method has a fluorescence quantum yield as high as 60%, a half-peak width of about 20nm, and high luminous color purity, and has great advantages in electroluminescence, high-performance display devices, lasers, and nonlinear optical devices. The method controls the particle size and components of the quantum dots by adjusting the synthesis process, and can obtain a hybrid perovskite quantum dot material whose emission wavelength covers the entire visible light region, and has broad application prospects in high color gamut LEDs, flat panel displays, and other fields. |