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Full-flexible transparent film electrode as well as preparation method and application thereof

A transparent thin-film, fully flexible technology, applied in cable/conductor manufacturing, hybrid capacitor electrode, hybrid/electric double-layer capacitor manufacturing, etc., can solve the problems of complex processing and inhomogeneity hindering applications, and achieve good properties, The effect of good mechanical properties and good application prospects

Pending Publication Date: 2021-11-05
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In summary, although existing technologies have proposed some solutions, such as embedding conductive networks into elastomers to improve their roughness, the complexity and inhomogeneity of the processing process still hinder its further application.

Method used

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  • Full-flexible transparent film electrode as well as preparation method and application thereof
  • Full-flexible transparent film electrode as well as preparation method and application thereof
  • Full-flexible transparent film electrode as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Dissolve poly(ethylene oxide) (PEO) solid powder in N,N-dimethylformamide (DMF) solution and stir at 500rpm / min at 60°C until a uniform and transparent solution is obtained a. The molecular weight of the PEO is 5,000,000.

[0057] (2) Select PH1000 as the PEDOT-PSS solution, in which the solid phase content of PEDOT is 1.3%, and the mass ratio of PEDOT to PSS is 1:6. Before use, filter with a 0.45 μm water-based glass fiber filter to remove large particles in the solution.

[0058] (3) the PEDOT-PSS solution obtained in the solution A in the step (1) and the step (2) is mixed, so that the PEO doping amount is 3wt%, 13wt%, 23wt%, 33wt%, 43wt%, 53wt%, Stir at a speed of 1000 rpm / min for 2-4 hours until a uniformly mixed liquid B is obtained.

[0059] (4) Use a pipette gun to pipette 200 μL of the mixed solution B in step (3) and drop-coat it on the UV-treated glass substrate, spin-coat at a speed of 3000 rpm / min for 40 s, and anneal and dry at 110 °C for 10 minutes...

Embodiment 2

[0067] Same as Example 1, the difference is that the molecular weights of PEO in step (1) are 2,500, 1,000,000, and 8,000,000, respectively.

[0068] Conduct conductivity and light transmittance performance verification on the fully flexible transparent thin film electrode (before acid treatment), the results are shown in Figure 8-10 .

Embodiment 3

[0069] Embodiment 3 Preparation of flexible wearable sensor

[0070] (1) Dissolve poly(ethylene oxide) (PEO) solid powder in N,N-dimethylformamide (DMF) solution, and stir at 300rpm / min~500rpm / min at 60°C until Homogeneous and transparent solution A. The molecular weight of the PEO is 5,000,000.

[0071] (2) Mix a certain amount of A solution and PEDOT:PSS solution in the step (1) (PEO doping amount 33wt%), and stir at a speed of 1000rpm / min for 4 hours until a well-mixed mixed solution B is obtained ;

[0072] (3) Obtain ultra-thin PDMS film: mix PDMS prepolymer (Sylgard 184, Dow Corning) and PDMS curing agent at a weight ratio of 10:1.

[0073] (4) The step (3) mixture was degassed in vacuum for 30 min to eliminate air and form a PDMS prepolymer. The prepolymer was poured onto a 3×3 cm silicon wafer treated with octadecyltrimethoxysilane (OTMS), then rotated at 1500 rpm for 1 minute, and finally cured at 75°C for 1 hour .

[0074] (5) Use a pipette gun to pipette the m...

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Abstract

The invention relates to the technical field of flexible electrodes, and relates to a full-flexible transparent film electrode as well as a preparation method and application thereof. The full-flexible transparent film electrode and is formed by blending a water-soluble polymer serving as a dopant and a conductive polymer. The preparation method comprises the following steps of: dissolving a water-soluble polymer in a polar organic solvent, heating and stirring the water-soluble polymer and the polar organic solvent, uniformly stirring and mixing an obtained mixed solution with a PEDOT: PSS solution to obtain a full-flexible transparent film solution, dispensing the full-flexible transparent film solution on a substrate, and preparing a full-flexible transparent film on the substrate through spin coating, blade coating or screen printing; and annealing and drying the full-flexible transparent film and the substrate, then transferring the full-flexible transparent film and the substrate into water, separating the full-flexible transparent film from the substrate through ultrasonic treatment, thereby obtaining the full-flexible transparent film electrode. According to the full-flexible transparent film electrode provided by the invention, the prepared full-flexible transparent film electrode has good conductivity and transparency, also has good mechanical properties, and can bear a certain degree of strain.

Description

technical field [0001] The invention relates to the technical field of flexible electrodes, in particular to a fully flexible transparent film electrode and its preparation method and application. Background technique [0002] Flexible electronic products have developed rapidly in the past decade, and the development trend of flexible and lightweight electronic devices has made flexible electronic devices closer to practical applications. Transparent conductive electrodes (TCEs), as basic components in flexible electronics, have been widely used in flexible electronics such as organic light-emitting diodes (OLEDs), organic solar cells (OSCs), and flexible touch panels. For traditional electronic devices, indium tin oxide (ITO) is usually used to prepare TCEs, but the material's brittle texture and high production cost limit its further application in flexible electronic devices. Aiming at the above problems, conductive materials with bending resistance (such as single-walle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/12H01B1/20H01B5/16H01B13/00H01G11/30H01G11/48H01G11/86H01L51/52
CPCH01B1/127H01B1/122H01B1/20H01B5/16H01B13/0026H01G11/48H01G11/30H01G11/86H10K50/81H10K50/805
Inventor 赖文勇牛坚李冠军
Owner NANJING UNIV OF POSTS & TELECOMM
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