Laminated organic electroluminescence device and manufacturing method thereof
A technology of electroluminescent devices and manufacturing methods, which is applied to organic light-emitting devices, organic light-emitting device manufacturing/processing, organic light-emitting device structures, etc., and can solve problems such as a large number of functional layers and reduced luminous efficiency of light-emitting devices
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Embodiment 1
[0058] In this embodiment, the structure of the connection layer in the stacked organic electroluminescent device is N-type gradiently doped layer / P-type non-doped layer, and the structure of each functional layer is shown in Table 1.
[0059]Table 1. Laminate structure of embodiment 1
[0060]
[0061] Among them, the ITO glass substrate is transparent glass with an indium tin oxide thin film; the host material of the light-emitting layer is MAND, and the doped guest material is DSA-Ph; the host material of the N-type gradient doped connection layer is Bphen, and the doped guest material is Bphen. Choose metal Li. Concrete preparation process is as follows:
[0062] On a transparent glass substrate with ITO (its surface resistance2 Blow dry and perform O 2 Plasma treatment; the processed substrate is placed in the evaporation chamber, and the air pressure in the evaporation chamber is adjusted to be lower than 5×10 -4 After Pa, the functional layers in Table 1 were sequ...
Embodiment 2
[0065] In this embodiment, the connection layer structure of the stacked organic electroluminescent device is N-type uniformly doped layer / P-type gradiently doped layer, and the structure of each functional layer is shown in Table 2. The manufacturing process of the device refers to the implementation example 1.
[0066] Table 2. Laminate structure of embodiment 2
[0067]
[0068]
[0069] The stacked organic electroluminescence device is a blue light device, and its light emitting area is 3mm×3mm. The main peak of luminescence is located at 470nm, and the shoulder peak is located at 496nm.
Embodiment 3
[0071] In this embodiment, the connection layer structure of the stacked organic electroluminescent device is N-type gradient doped layer / P-type gradient doped layer, and the structure of each functional layer is shown in Table 3. The manufacturing process of the device refers to the implementation example 1.
[0072] Laminate structure of table 3 embodiment 3
[0073]
[0074] The stacked organic electroluminescence device is a blue light device, and its light emitting area is 3mm×3mm. The main peak of luminescence is located at 470nm, and the shoulder peak is located at 496nm.
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