LIGAND-MODIFIED QUANTUM DOT COMPOSITION, LIGAND-MODIFIED QUANTUM DOT LAYER, PREPARATION METHOD THEREFOR, AND QUANTUM DOT LIGHT-EMITTING DIODE

Title:

LIGAND-MODIFIED QUANTUM DOT COMPOSITION, LIGAND-MODIFIED QUANTUM DOT LAYER, PREPARATION METHOD THEREFOR, AND QUANTUM DOT LIGHT-EMITTING DIODE

Document Type and Number:

WIPO Patent Application WO/2019/015345

Kind Code:

A1

Abstract:

The present disclosure provides a ligand-modified quantum dot composition, a ligand-modified quantum dot layer, a preparation method therefor, and a quantum dot light-emitting diode. A chain segment B of a ligand modifier in the ligand-modified quantum dot composition is a breakable chain segment. That is, the chain segment B is a relatively long molecular chain, such that a material has good solubility and stability. The ligand-modified quantum dot composition exists in the form of a solution, ink, or the like. The chain segment B itself is not quite stable and can be broken under certain conditions. In specific applications, groups in the chain segment B can be broken by heating or illumination, such that the ligand modifier becomes a short molecular chain ligand, thereby allowing quantum dots to be densely packed, and improving carrier transport performance.

Inventors:

ZHANG ZHENQI (CN)

Application Number:

PCT/CN2018/079221

Publication Date:

January 24, 2019

Filing Date:

March 16, 2018

Export Citation:

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Assignee:

BOE TECHNOLOGY GROUP CO LTD (CN)

International Classes:

C09K11/02; C09K19/52; G02F1/1337

Foreign References:

CN105733557A	2016-07-06
CN105278155A	2016-01-27

Other References: