US 12,291,661 B2
Quantum dot structure, method for producing a quantum dot structure, and light emitting device
Peter Chen, New Haven, CT (US); Brian Theobald, Gladstone, OR (US); and Joseph Treadway, Portland, OR (US)
Assigned to OSRAM Opto Semiconductors GmbH, Regensburg (DE)
Filed by OSRAM Opto Semiconductors GmbH, Regensburg (DE)
Filed on Dec. 22, 2021, as Appl. No. 17/560,083.
Prior Publication US 2023/0193121 A1, Jun. 22, 2023
Int. Cl. C09K 11/02 (2006.01); C09K 11/08 (2006.01); H10H 20/851 (2025.01)
CPC C09K 11/025 (2013.01) [C09K 11/08 (2013.01); H10H 20/8512 (2025.01)] 20 Claims
OG exemplary drawing
 
1. A 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 a 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.