SURFACE TREATMENT FOR COLLOIDAL STABILITY OF IN-SOLUTION LIGAND EXCHANGED QUANTUM DOTS

    公开(公告)号:US20230082643A1

    公开(公告)日:2023-03-16

    申请号:US17473712

    申请日:2021-09-13

    Abstract: A product includes a solution comprising Ag2Se quantum dots in a solvent. The solution is colloidally stable for at least one week. A product includes a solid layer formed of Ag2Se quantum dots. The layer is at least 100 nm thick. The layer is physically characterized by a substantial absence of defects therein. A process includes forming a solution of Ag2Se quantum dots and adding at least acetonitrile to the solution. The process further includes separating the Ag2Se quantum dots from the solution and washing the Ag2Se quantum dots at least two times in a solution comprising at least acetonitrile. The process further includes redispersing the washed Ag2Se quantum dots in a nonpolar solvent to create a colloidal suspension.

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