Light-emitting devices, preparation method thereof, and display panels
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorXuebin Chen
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Abstract
Disclosed is a light-emitting device, a preparation method, and a display panel. The light-emitting device includes an anode layer and a cathode layer disposed opposite to each other, a light-emitting layer disposed between the anode layer and the cathode layer, and a first interface-modifying layer disposed between the light-emitting layer and the anode layer. The first interface-modifying layer includes a thiophene-based polymer and a graphyne doped in the thiophene-based polymer and includes a first sub-layer close to the light-emitting layer and a second sub-layer close to the anode layer, and a doping ratio of the graphyne in the first sub-layer is greater than a doping ratio of the graphyne in the second sub-layer.
Claims16
A light-emitting device comprising an anode layer and a cathode layer disposed opposite to each other, a light-emitting layer disposed between the anode layer and the cathode layer, and a first interface-modifying layer disposed between the light-emitting layer and the anode layer,
- wherein the first interface-modifying layer comprises a thiophene-based polymer and a graphyne doped in the thiophene-based polymer, and the first interface-modifying layer comprises a first sub-layer disposed on the light-emitting layer and a second sub-layer disposed between the first sub-layer and the anode layer, and a doping ratio of the graphyne in the first sub-layer is greater than a doping ratio of the graphyne in the second sub-layer.
A method for preparing a light-emitting device, comprising:
- S10:
- providing a substrate;
- and
- S20:
- sequentially forming an anode layer, a first interface-modifying layer, a light-emitting layer, and a cathode layer on the substrate, or sequentially forming a cathode layer, a light-emitting layer, a first interface-modifying layer, and an anode layer on the substrate, wherein the first interface-modifying layer comprises a thiophene-based polymer and a graphyne doped in the thiophene-based polymer, and the first interface-modifying layer comprises a first sub-layer disposed on the light-emitting layer and a second sub-layer disposed between the first sub-layer and the anode layer, and a doping ratio of the graphyne in the first sub-layer is greater than a doping ratio of the graphyne in the second sub-layer.
A display panel comprising a light-emitting device, wherein the light-emitting device comprises an anode layer and a cathode layer disposed opposite to each other, a light-emitting layer disposed between the anode layer and the cathode layer, and a first interface-modifying layer disposed between the light-emitting layer and the anode layer, and
- the first interface-modifying layer comprises a thiophene-based polymer and a graphyne doped in the thiophene-based polymer, and the first interface-modifying layer comprises a first sub-layer disposed on the light-emitting layer and a second sub-layer disposed between the first sub-layer and the anode layer, and a doping ratio of the graphyne in the first sub-layer is greater than a doping ratio of the graphyne in the second sub-layer.
Dependencies are inferred from the claim text.