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    COATED QUANTUM DOT MATERIAL AND PREPARATION METHOD THEREFOR, AND QUANTUM DOT OPTICAL DEVICE
    5.
    发明公开
    COATED QUANTUM DOT MATERIAL AND PREPARATION METHOD THEREFOR, AND QUANTUM DOT OPTICAL DEVICE 审中-实审

    公开(公告)号：EP4400557A1

    公开(公告)日：2024-07-17

    申请号：EP22863331.9

    申请日：2022-08-26

    申请人： Zhu, Xiaobo ,  Cannano Jiayuan (Guangzhou) Science & Technology Co., Ltd.

    发明人： ZHU, Xiaobo

    IPC分类号： C09K11/02 ,  C09K11/88 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00

    摘要： The disclosure belongs to the technical field of quantum dot materials, and particularly relates to a quantum dot coating material and a preparation method therefor, and a quantum dot optical device. The quantum dot coating material includes a quantum dot core material and an inorganic salt coating agent, where the quantum dot core material includes an oil-soluble quantum dot, the inorganic salt coating agent has solubility less than 0.01 g per 100g of water and a thermal decomposition temperature higher than 300°C, and a ratio of mass of the quantum dot core material to moles of the inorganic salt coating agent in the quantum dot coating material is 1 :0.001 g/mol-1:0.05 g/mol. The preparation method includes: S1: mixing a quantum dot core material, an organic solvent, and an oil-soluble cation precursor to obtain a first mixed solution; S2: heating the first mixed solution at a heating temperature higher than 90°C; and S3: dropwise adding an anion aqueous solution into a first heated mixed solution. The quantum dot coating material provided by the disclosure has high-temperature processability, desirable light resistance, water resistance, and oxygen resistance, and high stability.