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Electroluminescent devices based on nanocellulose-silver nanowires and their applications

An electroluminescent device and nanocellulose technology, applied in nonlinear optics, instruments, optics, etc., to solve oxidation problems, improve dispersion, and reduce roughness

Active Publication Date: 2022-05-10
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, there is no good water-based silver nanowire solution on the market, which can be directly sprayed on the surface of polydimethylsiloxane after hydrophilic treatment to obtain a uniform and stable conductive film, providing a uniform and stable solution for stretchable electroluminescent devices. stable electrode

Method used

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  • Electroluminescent devices based on nanocellulose-silver nanowires and their applications
  • Electroluminescent devices based on nanocellulose-silver nanowires and their applications
  • Electroluminescent devices based on nanocellulose-silver nanowires and their applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Step 1, the preparation of polydimethylsiloxane film, its concrete method step comprises:

[0055] (1) Weigh 1 g of polydimethylsiloxane solution, add 0.1 g of curing agent, and fully stir the above mixture with a magnetic stirrer. Weigh 1.1 g of the mixed solution and spread it on a glass sheet, cure it in an oven at 80°C for 2 hours, and peel it off from the glass sheet; in the same way, prepare another polydimethylsiloxane film.

[0056] Step 2, the preparation of hydrophilic polydimethylsiloxane film, its concrete method step comprises:

[0057] (1) Place the polydimethylsiloxane film in H 2 O, HCl and H 2 o 2 The oxidizing solution prepared by mixing at a volume ratio of 2:1:1 was soaked for 5 minutes to react, oxidized the surface of the polydimethylsiloxane film, then rinsed with deionized water for 1 min, then rinsed with ethanol for 1 min, and dried with nitrogen; (2) Put the polydimethylsiloxane film into the 10:1 mixed solution of ethanol and water, add 2...

Embodiment 2

[0067] Step 1, the preparation of polydimethylsiloxane film, its concrete method step comprises:

[0068] (1) Weigh 2 g of polydimethylsiloxane solution, add 0.2 g of curing agent, and fully stir the above mixture with a magnetic stirrer. Weigh 1.1 g of the mixed solution and spread it on a glass sheet, cure it in an oven at 80°C for 2 hours, and peel it off from the glass sheet; in the same way, prepare another polydimethylsiloxane film.

[0069] Step 2, the preparation of hydrophilic polydimethylsiloxane film, its concrete method step comprises:

[0070] (1) Place the polydimethylsiloxane film in H 2 O, HCl and H 2 o 2 The oxidation solution prepared by mixing at a volume ratio of 5:1:1 was soaked for 5 minutes to react, and the surface of the polydimethylsiloxane film was oxidized, then rinsed with deionized water for 10 minutes, then rinsed with ethanol for 5 minutes, and dried with nitrogen; (2) Put the polydimethylsiloxane film into a 19:1 mixed solution of ethanol a...

Embodiment 3

[0080] Step 1, the preparation of polydimethylsiloxane film, its concrete method step comprises:

[0081] (1) Weigh 2 g of polydimethylsiloxane solution, add 0.2 g of curing agent, and fully stir the above mixture with a magnetic stirrer. Weigh 1.1 g of the mixed solution and spread it on a glass sheet, cure it in an oven at 80°C for 2 hours, and peel it off from the glass sheet; in the same way, prepare another polydimethylsiloxane film.

[0082] Step 2, the preparation of hydrophilic polydimethylsiloxane film, its concrete method step comprises:

[0083] (1) Place the polydimethylsiloxane film in H 2 O, HCl and H 2 o 2 The oxidation solution prepared by mixing at a volume ratio of 5:1:1 was soaked for 5 minutes to react, and the surface of the polydimethylsiloxane film was oxidized, then rinsed with deionized water for 10 minutes, then rinsed with ethanol for 5 minutes, and dried with nitrogen; (2) Put the polydimethylsiloxane film into a 19:1 mixed solution of ethanol a...

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Abstract

The invention discloses an electroluminescent device based on nanocellulose-silver nanowires, which is prepared through the following steps: a, using polydimethylsiloxane as a raw material to prepare a polydimethylsiloxane film; b 1. Using polydimethylsiloxane film as raw material to prepare hydrophilic polydimethylsiloxane film; c. Using polydimethylsiloxane, luminescent powder and barium titanate as raw material to prepare light-emitting layer solution d, using bleached wood pulp fibers as raw materials to prepare nanocellulose suspension; e, preparing a mixed solution of nanocellulose suspension and aqueous silver nanowire dispersion; f, spraying the mixed solution on hydrophilic polydimethylformaldehyde Spin-coat the light-emitting layer solution on the surface of the siloxane film, and laminate a layer of electrodes on the top. The electroluminescent device provided by the invention has very stable conductivity, strong adhesion to the substrate and stable luminance.

Description

technical field [0001] The invention belongs to the field of macromolecule photoelectric materials, and in particular relates to an electroluminescent device based on nanocellulose-silver nanowires and its application. Background technique [0002] Polydimethylsiloxane (Polydimethylsiloxane, PDMS) has good optics, stretchability, viscoelasticity, mechanical stability, light transmission, easy molding, biocompatibility and chemical properties, as well as simple process and low price. Cheap and other advantages, has been widely used in the field of flexible electronics research. However, the high hydrophobicity of polydimethylsiloxane, the tendency of hydrophobic recovery after the surface hydrophilization treatment, and the strong surface adsorption characteristics of biological macromolecules limit its application range. [0003] Silver nanowires have the advantages of high transparency and electrical conductivity, inherent good mechanical strength, and low-cost production ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1516G02F1/153
CPCG02F1/15G02F1/153
Inventor 韩景泉陈媛媛岳一莹梅长彤徐信武郑春晓朱赛玲
Owner NANJING FORESTRY UNIV
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