Cadmium-free quantum dots, tunable quantum dots, quantum dot containing polymer, articles, films, and 3d structure containing them and methods of making and using them
AssigneeTectus Corporation
InventorsLianhua QU, Hunaid NULWALA
Life of this patent
Estimating the term…
Abstract
Quantum dots that are cadmium-free and/or stoichiometncally tuned are disclosed, as are methods of making them. Inclusion of the quantum dots and others in a stabilizing polymer matrix is also disclosed. The polymers are chosen for their strong binding affinity to the outer layers of the quantum dots such that the bond dissociation energy between the polymer material and the quantum dot is greater than the energy required to reach the melt temperature of the cross-linked polymer.
Claims22
1-54. (canceled)
A nanocrystal polymer composite comprising a plurality of capped II-IV-VI semiconductor nanocrystal dispersed in a polymer resin;
- wherein,
- the capped II-IV-VI semiconductor nanocrystals comprise:
- a core comprising a II-VI-VI semiconductor nanocrystal;
- a first cap layer overlying the cores, wherein the first cap layer comprises ZnS;
- and
- a second cap layer overlying the first cap layer, wherein the second cap layer comprises Al2O3.
Dependencies are inferred from the claim text.