Compound, preparation method thereof and quantum dot light-emitting diode

A technology for quantum dot luminescence and compound, which is applied in chemical instruments and methods, luminescent materials, semiconductor/solid-state device manufacturing, etc. And other issues
CN112341606AActive Publication Date: 2021-02-09GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
Publication Date
2021-02-09

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Abstract

The invention relates to a compound, a preparation method thereof and a quantum dot light-emitting diode. The compound has a structure shown as a formula I, wherein X < + > is a metal cation; Y<-> isan anion connected with an alkyl side chain; wherein n is a positive integer ranging from 100 to 300. The compound is used as an interface modification material, hole injection and transmission efficiency can be improved, or electron transmission is hindered, charge balance can be promoted, the service life of a QLED can be prolonged, and excellent luminous efficiency of quantum dots can be maintained.
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Description

technical field

[0001] The invention relates to the field of light-emitting devices, in particular to a compound, a preparation method thereof and a quantum dot light-emitting diode. Background technique

[0002] Due to the unique optoelectronic properties of quantum dots, such as continuously adjustable emission wavelength with size and composition, narrow emission spectrum, high fluorescence efficiency, and good stability, quantum dot-based light-emitting diodes (QLEDs) have received extensive attention and research in the field of display. In addition, QLED display also has many advantages that LCD cannot achieve, such as large viewing angle, high contrast ratio, fast response speed, and flexibility, so it is expected to become the next generation of display technology.

[0003] After decades of development, the performance of QLED has made great progress. For example, under the premise of no special light extraction layer, the highest reported external quantum efficiency...

Claims

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