| abstract |
The present invention provides a kind of preparation method of perovskite Nanoflake luminescent material, it include: to prepare reaction precursor liquid solution, the reaction precursor liquid solution includes methylamine halide salt solution and inorganic metal hal ide solution, wherein, the molar concentration of the methylamine halide salt solution is in 0.5mol/L between its saturated concentration；Methylamine halide salt solution and inorganic metal hal ide solution are added in emulsion solvent respectively, obtain forerunner's precursor emulsion, in forerunner's precursor emulsion, the molar ratio of the inorganic metal hal ide and the methylamine halogen is 1:(0.6-0.8)；Demulsification obtains perovskite quanta point material；The perovskite quanta point material self assembly is controlled, to obtain the perovskite Nanoflake luminescent material.The present invention also provides a kind of perovskite Nanoflake luminescent material, a kind of perovskite nanometer sheet membrane material, a kind of backlight and a kind of display devices.The coloured polarised light of tool can be issued using backlight made of the perovskite Nanoflake luminescent material, so as to simplify the structure of display device. |