Quantum dot, preparation method therefor and use thereof
US11499095B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 25, 2018 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Aug 9, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y40/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A quantum dot and its preparation method and application. The method includes the steps of forming a compound quantum dot core first, then adding a precursor of a metal element M2 to be alloyed into the reaction system containing the compound quantum dot core. The metal element M2 undergoes cation exchange with a metal element M1 in the existing compound quantum dot core, thereby forming a quantum dot with an alloy core. In this method, the distribution of alloyed components is not only adjusted by changing the feeding ratio of the metal elements and the non-metal elements, but also by a more real-time, more direct, and more precise adjustments through various reaction condition parameters of the actual reaction process, thereby achieving a more precise composition and energy level distribution control for alloyed quantum dots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.