| abstract |
The invention discloses a quantum dot light-emitting diode capable of improving charge injection balance and a preparation method thereof. The present invention uses a composite material structure system composed of inorganic semiconductor materials and/or organic materials to prepare charge injection layers and/or charge transport layers and/or heterogeneous charge blocking layer material systems respectively, and adjust the inorganic semiconductor materials in each layer The ratio of materials and organic materials and the composition phase distribution state make the injection efficiency of electrons and holes injected into the quantum dot light-emitting layer consistent, the injected charge is equal, and the charge injection balance on the quantum dot light-emitting layer realizes the electrons and holes in the quantum dot light-emitting layer. The hole recombination efficiency is maximized, and the luminous efficiency of the quantum dot light-emitting diode is effectively improved. |