Tcl Technology Group Corporation

Jielong Qiu

Yixing Yang

Zhiwen Nie

Chengyu Yang

Lei Qian

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 Mto be alloyed into the reaction system containing the compound quantum dot core. The metal element Mundergoes cation exchange with a metal element Min 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.

Quantum dot, preparation method therefor and use thereof

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.

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Huizhou, China

Jielong Qiu