Patents Assigned to QustomDot B.V.
  • Patent number: 12037527
    Abstract: The disclosure relates to a method to prepare surface stabilized quantum dots by dispersing quantum dots having at least a first type of ligands bonded to their surface in a solvent having at least one multifunctional compound. The multifunctional compound includes at least a first functional group and at least a second functional group. The first functional group of the multifunctional compound is able to bind to the outer surface of the quantum dots and the second functional group of the multifunctional compound is able to interact with a first functional group of the first type of ligands provided on the outer surface of the quantum dots. The disclosure further relates to surface stabilized quantum dots obtainable by this method, to articles including such quantum dots and to the use of such quantum dots for use in on-chip color conversion applications.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: July 16, 2024
    Assignee: QustomDot B.V.
    Inventors: Dorian Dupont, Zeger Hens, Mickael Tessier
  • Patent number: 11939502
    Abstract: The present disclosure relates to quantum dots with a core of III-V material, a first layer of II-VI material and an external shell of II-VI material to be used, for example, in downconverters. The external shell is preferably made of an alloy of Zn and Cd with Se or S. Introducing a small amount of Cd in the external shell provides excellent absorbance performance in blue, violet and UV wavelengths. The amount of Cd needed for this increase in absorbance can be very low. Further, the emitted light can be nearly monochromatic, which is especially interesting in electronic applications.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: March 26, 2024
    Assignee: QustomDot B.V.
    Inventors: Zeger Hens, Mickael Tessier, Dorian Dupont
  • Publication number: 20220306934
    Abstract: The disclosure relates to a method to prepare surface stabilized quantum dots by dispersing quantum dots having at least a first type of ligands bonded to their surface in a solvent having at least one multifunctional compound. The multifunctional compound includes at least a first functional group and at least a second functional group. The first functional group of the multifunctional compound is able to bind to the outer surface of the quantum dots and the second functional group of the multifunctional compound is able to interact with a first functional group of the first type of ligands provided on the outer surface of the quantum dots. The disclosure further relates to surface stabilized quantum dots obtainable by this method, to articles including such quantum dots and to the use of such quantum dots for use in on-chip color conversion applications.
    Type: Application
    Filed: August 31, 2020
    Publication date: September 29, 2022
    Applicant: QustomDot B.V.
    Inventors: Dorian Dupont, Zeger Hens, Mickael Tessier
  • Publication number: 20220089944
    Abstract: The present disclosure relates to quantum dots with a core of III-V material, a first layer of II-VI material and an external shell of II-VI material to be used, for example, in downconverters. The external shell is preferably made of an alloy of Zn and Cd with Se or S. Introducing a small amount of Cd in the external shell provides excellent absorbance performance in blue, violet and UV wavelengths. The amount of Cd needed for this increase in absorbance can be very low. Further, the emitted light can be nearly monochromatic, which is especially interesting in electronic applications.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Applicant: QustomDot B.V.
    Inventors: Zeger Hens, Mickael Tessier, Dorian Dupont
  • Patent number: 11220630
    Abstract: This disclosure relates to quantum dots with a core of III-V material, a first layer of II-VI material and an external shell of II-VI material to be used, for example, in downconverters. The external shell is preferably made of an alloy of Zn and Cd with Se or S. The inventors have demonstrated that introducing a small amount of Cd in the external shell provides excellent absorbance performance in blue, violet and UV wavelengths. The amount of Cd needed for this increase in absorbance can be very low. The inventors have shown that the emitted light can be nearly monochromatic, which is especially interesting in electronic applications.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: January 11, 2022
    Assignee: QustomDot B.V.
    Inventors: Zeger Hens, Mickael Tessier, Dorian Dupont