Core-shell structure photonic crystal electrochromic composite film and preparation method thereof

A photonic crystal and electrochromic technology, applied in the coating and other directions, can solve the problems of short life and poor cycle stability of color-changing films, and achieve the effects of low cost, enhanced optical contrast and response rate, and improved conductivity and transparency.

Pending Publication Date: 2022-02-11
NANJING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current core-shell inverse opal electrochromic film stil

Method used

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  • Core-shell structure photonic crystal electrochromic composite film and preparation method thereof
  • Core-shell structure photonic crystal electrochromic composite film and preparation method thereof
  • Core-shell structure photonic crystal electrochromic composite film and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0032] Example 1

[0033] Step 1, a parent-treated FTO glass is used as a substrate, and the concentration of 0.1% by weight of the concentration of 0.1% by weight is inserted into a PS microspheres, and the oil is filled with water to obtain a regular PS colloidal crystal template.

[0034] Step 2, 1.06 g of sodium dihydrate, 0.6 ml of hydrogenated, 16.6 ml of hydrolic acid and 0.22 g of structural guides and 240 ml of deionized water, prepared to WO 3 Forward fluid, ultrasonic stirring was 18 min to give the desired electrolyte.

[0035] Step three, the step 1, the PS colloidal crystal template is used as the working electrode, silver / silver chloride as the reference electrode, and the platinum sheet is deposited in the void of the PS microsphere under the three-electrode system of the electrode. WO 3 Electrodeposition 300s. After the end of the fill, flush 4 times with ethanol and deionized water, N 2 Get wo after drying in the atmosphere 3 / PS photonic crystal film.

[0036...

Example Embodiment

[0044] Example 2

[0045] Step 1, a parent-treated FTO glass is used as a substrate, and the concentration of 0.14 wt% of the concentration of 0.14 wt% is perpendicular to the PS microspheres, and the oil is arranged in a 53 ° C oven to obtain a PS colloidal crystal crystal template arranged in the rule.

[0046] Step 2, 1.05 g of sodium dihydrate, 0.6 ml of oxygen, 16.7 ml of hydrolic acid and 0.23 g of structural guides and 260 ml of deionized water, prepared to WO 3 Forward fluid, ultrasonic stirring was 20 min to give the desired electrolyte.

[0047] Step three, the PS colloidal crystal template (1) as the working electrode, silver / silver chloride as the reference electrode, the platinum sheet is deposited in the void of the PS microsphere as the three-electrode system of the electrode. WO 3 Electrodeposition 270s. After the end of the fill, flush 5 times with ethanol and deionized water, N 2 Get wo after drying in the atmosphere 3 / PS photonic crystal film.

[0048] Step ...

Example Embodiment

[0051] Example 3

[0052] Step 1, a parent-treated FTO glass is used as a substrate, and the concentration of 0.13 wt% of the concentration of 0.13 wt% is perpendicular to the PS microspheres, and the oven is filled with water volatilization to obtain a PS colloidal crystal crystal template arranged in the rule.

[0053] Step 2, 1 g of sodium dihydrate, 0.65 ml of hydrogenated, 16.8 ml of hydrica chloric acid and 0.23 g of the guide agent were mixed with 260 ml of deionized water, prepared to WO 3 Forward fluid, ultrasonic stirring was 25 min to give the desired electrolyte.

[0054] Step three, the PS colloidal crystal template (1) as the working electrode, silver / silver chloride as the reference electrode, the platinum sheet is deposited in the void of the PS microsphere as the three-electrode system of the electrode. WO 3 Electrodeposition 320S. After the end of the fill, flush 4 times with ethanol and deionized water, N 2 Get wo after drying in the atmosphere 3 / PS photonic...

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Abstract

The invention discloses a core-shell structure photonic crystal electrochromic composite film, wherein the electrochromic composite film is formed by electrically polymerizing WO3 inverse opal with a conductive polymer PEDOT, the WO3 inverse opal is a core skeleton, and the conductive polymer PEDOT is a shell layer. The WO3 inverse opal structure is a porous hexagonal array, the aperture of the WO3 inverse opal is 700-800 nm, after the PEDOT is electrically polymerized, the inner diameter of the inverse opal is 500-600 nm, and the thickness of the PEDOT layer is 100-300 nm. The invention further discloses a preparation method of the core-shell structure photonic crystal electrochromic composite film. According to the core-shell structure photonic crystal electrochromic composite film and the preparation method thereof, the preparation method is simple and easy to implement and low in preparation cost, and the prepared electrochromic composite film is stable in structure, excellent in performance and long in cycle life.

Description

technical field [0001] The invention relates to a photonic crystal electrochromic composite film with a core-shell structure and a preparation method thereof, belonging to the technical field of electrochromic composite materials. Background technique [0002] Electrochromic (EC) materials have been widely used in the field of smart window building energy conservation because of their ability to reversibly adjust the optical properties of windows only by applying a very low voltage. About 45% of the energy radiated from the sun to the earth comes from visible light (390-760nm), and 50% comes from the near-infrared band (760-2500nm). However, the regulation of most electrochromic smart windows is limited to the visible light band, and there are not many researches and developments on near-infrared light. Therefore, how to use the full-band energy of solar energy to reduce energy consumption in temperature control and lighting has become the key to building energy management ...

Claims

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Application Information

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IPC IPC(8): C03C17/42
CPCC03C17/42C03C2217/425C03C2217/445C03C2217/475C03C2218/115C03C2218/355
Inventor 卜小海翟文超冯明鑫钱唯唯张泽武闫家清刘艳梅蒋晓明
Owner NANJING INST OF TECH
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