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2d TMDs-conducting polymer composites, their preparation methods and applications

A technology of conductive polymers and composite materials, applied in semiconductor/solid-state device manufacturing, circuits, electrical components, etc., can solve problems such as affecting hole injection ability, easy agglomeration, etc., to promote fast transport, prevent agglomeration, and excellent electrochemical performance. performance effect

Active Publication Date: 2020-11-20
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a 2D TMDs-conductive polymer composite material and its preparation method, aiming to solve the problem that 2D TMDs are easy to agglomerate when used as hole injection materials in the prior art and affect the hole injection ability

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  • 2d TMDs-conducting polymer composites, their preparation methods and applications
  • 2d TMDs-conducting polymer composites, their preparation methods and applications

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preparation example Construction

[0028] Correspondingly, an embodiment of the present invention provides a method for preparing a 2D TMDs-conductive polymer composite material, comprising the following steps:

[0029] S01. dispersing 2D TMDs and conductive polymers in an organic solvent to form a dispersion;

[0030] S02. ultrasonically treating the dispersion to prepare a 2D TMDs-conductive polymer composite.

[0031]The preparation method of the 2D TMDs-conductive polymer composite material provided by the embodiment of the present invention uses the ultrasonic exfoliation-intercalation method. The strong Π-Π stacking and electrostatic repulsion between the conductive polymer and the 2D TMDs basal surface can simultaneously realize the peeling and dispersion of 2D TMDs and the intercalation of conductive polymers between the 2D TMDs sheets. The 2D TMDs-conducting polymer composite prepared by ultrasonic exfoliation-intercalation method is conducive to better exerting the intrinsic properties of 2D TMDs and...

Embodiment 1

[0078] A kind of MoS 2 The preparation method of / SPAN nanocomposite material, comprises the following steps:

[0079] MoS 2 -Preparation of SPAN nanocomposites: 0.5mg MoS 2 and 0.5mg SPAN were dispersed in 100mL N,N-dimethylformamide (DMF), fully stirred, ultrasonically treated for 8h, and the upper layer suspension was centrifuged at 1500rpm for 20min to remove unstripped MoS 2 , the obtained homogeneous suspension is MoS 2 - SPAN nanocomposites.

Embodiment 2

[0081] A method for preparing a QLED device, comprising the following steps:

[0082] The patterned ITO substrate was sequentially placed in acetone, washing solution, deionized water and isopropanol for ultrasonic cleaning, each time for 15 minutes. After the ultrasound is completed, place the ITO in a clean oven to dry for later use. After the ITO substrate was dried, the ITO surface was treated with UV-ozone for 5 minutes.

[0083] MoS at a concentration of 0.1 mg / ml 2 The / SPAN nanocomposite solution was deposited on the surface of the treated ITO substrate with a thickness of 30nm, and the substrate was placed on a heating stage at 150°C for 30 minutes to remove the solvent.

[0084] The substrate deposited with the hole injection layer was placed in a nitrogen atmosphere, a layer of TFB hole transport layer with a thickness of 30 nm was deposited, and the substrate was placed on a heating stage at 150° C. for 30 minutes to remove the solvent.

[0085] After the sheet ...

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Abstract

The present invention provides a 2D TMDs-conductive polymer composite material, the 2D TMDs-conductive polymer composite material is an intercalation composite material, including 2D TMDs and a conductive polymer, and the conductive polymer is embedded in the Between the sheets of 2D TMDs. The 2D TMDs-conductive polymer composite material provided by the present invention is obtained by intercalating conductive polymers between the sheets of 2D TMDs. On the one hand, the intercalation of the conductive polymers increases the interlayer spacing of 2D TMDs, preventing TMDs On the one hand, after the dispersed conductive polymer is intercalated between the flexible 2D TMDs sheets, it can effectively prevent the agglomeration of the conductive polymer itself, so as to achieve better dispersion and coordination of 2D TMDs and conductive polymers. complex.

Description

technical field [0001] The invention belongs to the technical field of flat panel display, and in particular relates to a 2D TMDs-conductive polymer composite material, its preparation method and application. Background technique [0002] Quantum dots have the advantages of high light color purity, high luminous quantum efficiency, adjustable luminous color, and high quantum yield. In addition, they can be prepared by printing technology, so quantum dot-based light-emitting diodes (ie, quantum dot light-emitting diodes: QLED) have recently received a lot of attention. People's general concern, its device performance indicators are also developing rapidly. However, due to the deep energy level and high ionization potential of quantum dot materials, there is still a large hole injection barrier between the existing hole transport layer and the quantum dot light-emitting layer, which in turn leads to the gap between the anode and the light-emitting layer. The hole injection is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/02C08K3/30C08K5/42H01L51/50H01L51/56
CPCC08K3/30C08K5/42C08K2003/3009H10K50/17H10K71/00C08L79/02
Inventor 李龙基曹蔚然王宇
Owner TCL CORPORATION
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