| abstract |
The invention discloses a quantum dot electroluminescent device, a display panel and a display device, so as to improve the quantum dot light-emitting device in the prior art, there is a possibility that after the voltage is raised to a certain level, when the voltage is raised again, the luminous efficiency will be reduced. falling problem. The quantum dot electroluminescence device includes a stacked anode layer, a composite light-emitting layer and a cathode layer, wherein the composite light-emitting layer includes at least two stacked quantum dot light-emitting layers, and every two adjacent layers of the quantum dots There is an intermediate layer between the light emission; the intermediate layer is configured to transport holes and block electrons. |