| abstract |
The present application provides a blue-light perovskite ink, a preparation method thereof, and a perovskite light-emitting device. The blue-light perovskite ink includes a main solvent, perovskite nanocrystals and a polymer, and the polymer is dissolved in the main solvent. In the solvent, the perovskite nanocrystals are dispersed in the main solvent, the perovskite nanocrystals include a nanocrystal body and a passivation layer, the passivation layer coats the nanocrystal body, and the nanocrystals The chemical formula of the crystal host is APbX 3 . In the present application, the nanocrystalline body is coated with a passivation layer, the defects of the nanocrystalline body are passivated, the stability of the nanocrystalline body is improved, and the perovskite nanocrystal is applied to the perovskite light-emitting device, thereby improving the perovskite The stability and luminous efficiency of mineral light-emitting devices. |