| abstract |
The present invention relates to a kind of one-dimensional ultra-fine CsPbBr that shines 3 The preparation method of perovskite nano wire, it is as follows that the method comprising the steps of：Under certain temperature water-bath, surfactant A, surfactant B and solvent are mixed, clear solution is stirred evenly to obtain, adds reactant PbBr 2 And CsBr, it reacts under certain rotating speed, centrifuges after reaction, obtained lower sediment, as CsPbBr 3 Perovskite nano wire.This method can be not required in the case where room temperature does not have any gas shield by later-period purification, and a step has prepared the CsPbBr of the very high controlled diameter of purity 3 Nano wire.Nano wire prepared by the present invention has many advantages, such as that surface is more complete, defect is few, electrons and holes can effectively direct combination shine, show excellent luminosity, with higher quantum yield, it is hopeful to be applied in the optical devices such as next-generation full-inorganic perovskite LED, fluorescence detector, laser. |