ORGANIC ELECTROLUMINESCENT DEVICE AND PREPARATION METHOD THEREOF

摘要

Disclosed are an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device is a top-emitting organic electroluminescent device having a reversed structure, and the preparation method is: dissolving zinc oxide with acetic acid to obtain a zinc oxide solution with a concentration of 0.3 g/ml-0.6 g/ml, adding a phthalocyanine substance in a mass of 1%-10% of the mass of the zinc oxide to obtain a mixture, spin-coating the mixture on a glass substrate (1) and then drying to obtain a cathode (2), and then preparing by vapor deposition, an electron injection layer (3), an electron transport layer (4), a luminescent layer (5), a hole transport layer (6), a hole injection layer (7) and an anode (8), successively, so as to obtain the organic electroluminescent device.

主权项

1. A method for preparing organic electroluminescent device, comprising:
providing a clean glass substrate and then preparing a cathode on the glass substrate by the following steps:
dissolving zinc oxide with acetic acid to obtain a zinc oxide solution with a concentration of 0.3 g/ml-0.6 g/ml, followed by adding a phthalocyanine substance in an amount of 1%-10% by weight of the zinc oxide to obtain a mixture;spin-coating the mixture on the glass substrate and then drying to obtain a cathode; the phthalocyanine substance is selected from a group consisting of copper phthalocyanine (CuPc), zinc phthalocyanine (ZnPc), magnesium phthalocyanine (MgPc) and vanadium phthalocyanine (V2Pc5); preparing by vapor deposition, an electron injection layer, an electron transport layer, a luminescent layer, a hole transport layer, a hole injection layer and an anode being successively stacked on the cathode to obtain the organic electroluminescent device.