Preparation method of electroluminescent device rare earth nano luminescent layer with conductivity

Abstract

The invention discloses a preparation method of an electroluminescent device rare earth nano luminescent layer with conductivity. According to the preparation method, a rare earth complex, PEO and PVKare dissolved in a mixed solvent of chloroform and DMF; after stirring, an efficient nano conductive material is added for continuous stirring so as to obtain turbid liquid with uniform viscosity, and the turbid liquid is spinning solution; by utilizing a stable jet electrospinning technique, the rotation direction of a fiber collection electrode is controlled, and a nanocomposite luminescent fiber layer, with an ultrahigh orientation structure, of the rare earth complex and the conductive material; and the rare earth complex is selected from Eu (DBM) 3phen and Tb (TTA) 3bath. The preparationmethod is simple in preparation process and free of expensive film evaporation equipment. By adoption of the stable jet technique, an approximately imporous conductive luminescent nano film layer canbe obtained, and the film layer has luminescent performance rival to evaporation films and favorable electronic transmission ability, and is capable of making electroluminescent devices more light-minded and miniaturized, thereby reducing the production cost of the electroluminescent devices and being suitable for industrial production.

Description

technical field [0001] The invention relates to a preparation method of a rare-earth nano-luminescent layer of an electroluminescent device with conductivity. Background technique [0002] With the continuous deepening of various electroluminescence display research, rare earth luminescent materials occupy an increasingly important position in the field of electroluminescence. At the same time, people are gradually turning their attention to OLED, a new type of organic electroluminescent device with better performance. Because of its advantages of high brightness, energy saving and low cost, the product has been successfully and widely used in smart phones, TVs, lighting and other fields. [0003] However, in the current market, electroluminescent devices generally have disadvantages such as poor stability, low efficiency, fast aging, impure chromaticity, and large size and volume. Therefore, miniaturized and ultra-thin electroluminescent devices with excellent luminescent ...

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Problems solved by technology

[0003] However, in the current market, electroluminescent devices generally have disadvantages such as poor stability, low efficiency, fast aging, impure chromaticity, and large size.

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