公开(公告)号：US12291661B2

公开(公告)日：2025-05-06

申请号：US17560083

申请日：2021-12-22

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Peter Chen ,  Brian Theobald ,  Joseph Treadway

IPC: C09K11/02 ,  C09K11/08 ,  H10H20/851

Abstract: A quantum dot structure is provided, the quantum dot structure comprising: a nanocrystalline core from a first semiconductor material, a nanocrystalline shell from a second semiconductor material on the nanocrystalline core, at least one encapsulation layer on the nanocrystalline shell, wherein functional groups are present within the at least one encapsulation layer and/or on the surface of the at least one encapsulation layer facing away from the nanocrystalline shell, the functional groups being able to chemically react in a reversible manner. Further, a method for producing a quantum dot structure and a light emitting device are provided.

公开(公告)号：US20230193121A1

公开(公告)日：2023-06-22

申请号：US17560083

申请日：2021-12-22

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Peter Chen ,  Brian Theobald ,  Joseph Treadway

IPC: C09K11/02 ,  H01L33/50 ,  C09K11/06

CPC classification number: C09K11/025 ,  H01L33/502 ,  C09K11/06 ,  C09K2211/1018

Abstract: A quantum dot structure is provided, the quantum dot structure comprising: a nanocrystalline core from a first semiconductor material, a nanocrystalline shell from a second semiconductor material on the nanocrystalline core, at least one encapsulation layer on the nanocrystalline shell, wherein functional groups are present within the at least one encapsulation layer and/or on the surface of the at least one encapsulation layer facing away from the nanocrystalline shell, the functional groups being able to chemically react in a reversible manner. Further, a method for producing a quantum dot structure and a light emitting device are provided.

公开(公告)号：US11795384B2

公开(公告)日：2023-10-24

申请号：US17541148

申请日：2021-12-02

Applicant: OSRAM Opto Semiconductors GmbH

Inventor： Erik Johansson ,  Robert Fitzmorris ,  Peter Chen

IPC: C09K11/02 ,  H01L33/50

CPC classification number: C09K11/025 ,  C09K11/02 ,  H01L33/502 ,  C01P2004/50 ,  C01P2004/64 ,  C01P2004/80

Abstract: A nanoparticle is specified. The nanoparticle comprises a nanocrystal configured to convert electromagnetic radiation of a first wavelength range into electromagnetic radiation of a second wavelength range, a first encapsulation comprising pores which reach into or through the first encapsulation, and a second encapsulation which is different from the first encapsulation, wherein the second encapsulation abuts at least one of the pores. Furthermore, a structure comprising a plurality of nanoparticles and a method for producing nanoparticle is specified.