Quantum dot and preparation method thereof

US11312898B2 · kind B2 · utility

Assignee

• TCL TECHNOLOGY GROUP CORPORATION · CN

Inventors

• Yixing Yang · Huizhou, CN
• Zhiwen NIE · Huizhou, CN
• Jielong Qiu · Huizhou, CN
• Chengyu YANG · Hangzhou City, CN

Key dates

• Filing date: Mar 20, 2018
• Grant date: Apr 26, 2022
• Expiry date: Dec 8, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B82Y40/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present disclosure discloses a quantum dot and a preparation method thereof, the method comprises a plurality of following steps: preparing a quantum dot solution; preparing an ion-containing organic ligand precursor; adding the ion-containing organic ligand precursor into the quantum dot solution, and making a surface-modification to the quantum dots, before obtaining the quantum dots having the surfaces modified; or providing a quantum dot solution; providing an ion-containing organic ligand precursor; mixing the ion-containing organic ligand precursor and the quantum dot solution, to make a ligand exchanging, before centrifuging and obtaining the quantum dots having the ligand exchanged.