ELECTRON TRANSPORT MATERIAL AND PREPARATION METHOD THEREFOR, AND MANUFACTURING METHOD FOR DISPLAY DEVICE

WIPO Patent Application WO/2022/242178

A1

The present application discloses an electronic transport material and a preparation method therefor, and a manufacturing method for a display device. The preparation method for the electron transport material comprises the steps of: obtaining a metal salt solution and an alkaline solution; and after the metal salt solution and the alkaline solution are mixed, adding a capping agent in a reaction process of a metal salt and an alkaline substance to continue to react to obtain a metal oxide electron transport material having the surface thereof bonded with the capping agent, the capping agent being selected from at least one of N atom- or halogen atom-containing alkanes, N atom- or halogen atom-containing cycloalkanes, and N atom- or halogen atom-containing polymers. According to the preparation method of the present application, a metal oxide having the surface thereof bonded with a capping agent is prepared, the aggregation phenomenon of nanoparticles is reduced, and the uniformity and dispersion stability of the metal oxide nanoparticles are ensured, such that the film forming property of the electron transport material is improved, a film layer is more compact, and the carrier transport and migration efficiency is improved.

YAO ZHENLEI (CN)

PCT/CN2021/141736

November 24, 2022

December 27, 2021

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TCL TECH GROUP CORP (CN)

H01L51/54

CN109980099A	2019-07-05
CN109962179A	2019-07-02
US20200259110A1	2020-08-13

SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)

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