An organic electroluminescent diode and an organic electroluminescent apparatus
A luminescence and diode technology, applied in circuits, electrical components, electric solid devices, etc., can solve the problems of low luminous efficiency of blue light devices, achieve the effects of increased injection difficulty, improved blue light luminous efficiency, and high luminous efficiency
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Embodiment 1
[0062] This embodiment provides a specific example of an organic electroluminescent diode, including a first electrode 11, a third carrier functional layer 12, a first carrier functional layer 13, two blue light emitting layers 14, The second carrier functional layer 15 , the fourth carrier functional layer 16 and the second electrode 17 .
[0063] Wherein, the first electrode 11 is an anode, the third carrier functional layer 12 is a stacked hole injection layer and a hole transport layer, the first carrier functional layer 13 is an electron blocking layer, and two blue light emitting layers 14 They are the phosphorescent light-emitting layer 141 close to the first electrode 11 and the fluorescent light-emitting layer 142 close to the second electrode 17, the second carrier functional layer 15 is a hole blocking layer, and the fourth carrier functional layer 16 is an electron transport layer and an electron injection layer, and the second electrode 17 is a cathode.
[0064] ...
Embodiment 2
[0067] This embodiment provides an organic electroluminescent diode, which is basically the same as the organic electroluminescent diode described in Example 1, the only difference being:
[0068] In organic electroluminescent diodes, ΔE h1 0eV, ΔE e1 is 0.2eV; the phosphorescent light-emitting layer 141 is made of a phosphorescent material, specifically TCTA:FIrpic (5%, 20nm), and its hole mobility is 5.2eV -4 cm 2 / V / s; the fluorescent light-emitting layer 142 is made of a fluorescent material, specifically TPBi:DSA-Ph (5%, 20nm), and its electron mobility is 8.2e -4 cm 2 / V / s.
[0069] The device structure of the organic electroluminescent diode in the present embodiment is: ITO (10nm) / Ag (100nm) / ITO (10nm) / HATCN (5nm) / m-MTDATA (20nm) / TCTA (200nm) / TCTA:FIrpic( 5%, 20nm) / TPBi:DSA-Ph(5%, 20nm) / BPhen(5nm) / TmPyPb(40nm) / LiF(1nm) / Mg:Ag(20%, 15nm) / NPB(60nm).
Embodiment 3
[0071] This embodiment provides an organic electroluminescent diode, which is basically the same as the organic electroluminescent diode described in Example 1, the only difference being:
[0072] The third carrier functional layer 12 is not provided, and the fourth carrier functional layer 16 is an electron injection layer.
[0073] The device structure of the organic electroluminescent diode in the present embodiment is: ITO (10nm) / Ag (100nm) / ITO (10nm) / TCTA (300nm) / TCTA:FIrpic (5%, 20nm) / TmPyPb:DSA-Ph( 5%, 20nm) / BPhen(5nm) / TmPyPb(40nm) / Mg:Ag(20%, 15nm) / NPB(60nm).
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