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    • 92. 发明公开
    • METHOD FOR PREPARING QUANTUM DOTS OF LEAD SELENIDE
    • VERFAHREN ZUR ERZEUGUNG VON BLEISELENID-QUANTENPUNKTEN
    • EP2570383A1
    • 2013-03-20
    • EP10851207.0
    • 2010-05-11
    • Ocean's King Lighting Science&Technology Co., Ltd.
    • ZHOU, MingjieWANG, Chun
    • C01B19/04C01G21/00
    • C01B19/007B82Y30/00C01G21/06C01P2004/03C01P2004/30C01P2004/64
    • Provided is a method for preparing quantum dots of lead selenide, comprising the following steps: 1) mixing selenium powder with octadecene, heating with stirring to dissolve the selenium powder fully, maintaining the temperature, then cooling to room temperature to obtain a stock solution of selenium; 2) mixing lead compound, oleic acid, octadecene and benzophenone together, and dissolving to obtain a stock solution of lead, then maintaining the temperature at 130-190°C; 3) adding the stock solution of selenium into the stock solution of lead rapidly, and maintaining the temperature at 100-160°C, after cooling, quantum dots of lead selenide are initially prepared; 4) adding the initially prepared quantum dots of lead selenide into a mixture of toluene and methanol, centrifugating and the supernatant to obtain a precipitate, then redissolving the precipitate with toluene to obtain a transparent solution of quantum dots of pure lead selenide. The method is safe in operation, simple, good in reproducibility and low in cost.
    • 提供了一种制备硒化铅量子点的方法,包括以下步骤:1)将硒粉与十八碳烯混合,搅拌加热,充分溶解硒粉,保持温度,然后冷却至室温,得到 硒; 2)将铅化合物,油酸,十八碳烯和二苯甲酮混合在一起,溶解得到铅原液,然后保持温度在130-190℃; 3)将硒原液快速添加到铅储备溶液中,保持温度在100-160℃,冷却后,首先制备硒化铅的量子点; 4)将最初制备的硒化铅量子点添加到甲苯和甲醇的混合物中,离心分离上清液,得到沉淀物,然后用甲苯再溶解沉淀物,得到纯硒化铅量子点的透明溶液。 该方法操作安全,简单,重现性好,成本低。