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Preparation method of high-flexible light W18O49 electrochromic film

An electrochromic and thin-film technology, applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the limitations of electrochromic high-flexible devices, not having good bendability, and unfavorable flexible substrates Problems such as film formation, to achieve good optical properties, fast transition rate, simple preparation method

Active Publication Date: 2015-10-28
DONGHUA UNIV
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  • Summary
  • Abstract
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Problems solved by technology

[0004] However, the multilayer complex structure of traditional electrochromic devices limits the development of highly flexible electrochromic devices, especially the traditional ITO transparent conductive layer does not have good bendability, and the traditional method of preparing the color-changing layer is not conducive to the development of electrochromic devices. Films are formed on flexible substrates, and thicker polymer substrate materials greatly increase the weight of the overall device

Method used

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  • Preparation method of high-flexible light W18O49 electrochromic film
  • Preparation method of high-flexible light W18O49 electrochromic film
  • Preparation method of high-flexible light W18O49 electrochromic film

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Embodiment 1

[0030] Add the polydopamine / alginic acid compound and the silver nanowire successively to a water-ethanol mixed solution with a volume fraction of 50% of water to prepare a spray solution A, wherein the concentration of the compound is 0.08 mg / ml, and the concentration of the silver nanowire is 0.65 mg / ml, mix commercially available PEDOT:PSS aqueous solution with absolute ethanol to obtain PEDOT:PSS dilution, wherein the volume fraction of commercially available PEDOT:PSS aqueous solution is 20%, polydopamine / alginic acid complex and W 18 o 49 The nanowires are successively added to a water-ethanol mixed solution with a volume fraction of 50% of water to configure a spray solution B, wherein the concentration of the compound is 0.025mg / ml, W 18 o 49 The nanowire concentration was 0.2 mg / ml. Place the PET film with a thickness of 0.15mm horizontally on a hot stage with a temperature of 50°C, then place the airbrush vertically at a height of 20cm from the PET film, and spray ...

Embodiment 2

[0032] Add the polydopamine / alginic acid compound and the silver nanowire successively to a water-ethanol mixed solution with a volume fraction of 70% of water to prepare a spray solution A, wherein the concentration of the compound is 0.08 mg / ml, and the concentration of the silver nanowire is 0.9 mg / ml, mix commercially available PEDOT:PSS aqueous solution with absolute ethanol to obtain PEDOT:PSS dilution, wherein the volume fraction of commercially available PEDOT:PSS aqueous solution is 10%, polydopamine / alginic acid complex and W 18 o 49 The nanowires are successively added to a water-ethanol mixed solution with a volume fraction of 50% of water to configure a spray solution B, wherein the concentration of the compound is 0.01mg / ml, W 18 o 49 The nanowire concentration was 0.3 mg / ml. Place the PET film with a thickness of 0.3mm horizontally on a hot stage with a temperature of 60°C, then place the airbrush vertically at a height of 30cm from the PET film, and spray the...

Embodiment 3

[0034] Add the polydopamine / alginic acid compound and the silver nanowire successively to a water-ethanol mixed solution with a volume fraction of 90% of water to prepare a spray solution A, wherein the concentration of the compound is 0.12 mg / ml, and the concentration of the silver nanowire is 0.65 mg / ml, mix commercially available PEDOT:PSS aqueous solution with absolute ethanol to obtain PEDOT:PSS dilution, wherein the volume fraction of commercially available PEDOT:PSS aqueous solution is 50%, polydopamine / alginic acid complex and W 18 o 49 The nanowires are successively added to a water-ethanol mixed solution with a volume fraction of 70% of water to configure a spray solution B, wherein the concentration of the compound is 0.05mg / ml, W 18 o 49 The nanowire concentration was 0.1 mg / ml. Place the PET film with a thickness of 0.5mm horizontally on a hot stage at a temperature of 70°C, then place the airbrush vertically at a height of 20cm from the PET film, and spray the ...

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Abstract

The invention relates to a preparation method of a high-flexible light W18O49 electrochromic film. The method includes: dissolving a polydopamine / alginic acid compound in a water / ethanol mixed solution to obtain a mixed solution, dispersing silver nanowires and W18O49 nanowires in the mixed solution respectively to obtain a spraying liquid A containing silver nanowires and polydopamine / alginic acid and a spraying liquid B containing W18O49 nanowires and polydopamine / alginic acid; mixing PEDOT:PSS water solution with anhydrous ethanol to obtain a PEDOT:PSS diluent; placing a PET film on a hot stage, arranging an airbrush above the PET film vertically, and under nitrogen pressure, spraying the spraying liquid A, the PEDOT:PSS diluent and the spraying liquid B to the PET film in order, thus obtaining the high-flexible light W18O49 electrochromic film. The method provided by the invention is simple and is suitable for large area preparation, realizes high bendability and light weight of an electrochromic film electrode, and enlarges the range of application.

Description

technical field [0001] The invention belongs to the field of preparation of electrochromic thin films, in particular to a highly flexible and light W 18 o 49 Preparation method of electrochromic thin film. Background technique [0002] With the development of society, people have higher and higher requirements for food, clothing, housing, transportation, etc., which are closely related to themselves. Highly portable, intelligent, and multi-functional equipment has become the mainstream of development. Traditional rigid equipment can no longer Meet people's higher needs. Especially in recent years, with the emergence of a series of products such as Iwatch and Google Glass, wearable devices have become a new hot spot. People have higher and higher requirements for the flexibility and even stretchability of devices and devices. How to realize the existing The bendability of optoelectronic devices and devices has become the focus of a series of research. [0003] As an impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L79/02C08L5/04C08K7/08C08K7/06B32B27/06B32B27/08B32B27/18
Inventor 王宏志李克睿李耀刚张青红
Owner DONGHUA UNIV
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