High-performance dual-frequency independent modulation electrochromic film and production method thereof
A technology of modulating electricity and high performance, applied in coating and other directions, can solve the problems of nanoparticle agglomeration and low discoloration ability, and achieve the effect of enhanced coupling effect, controllable process, and strong dual-frequency independent modulation ability.
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[0029] The present invention also provides a preparation method of a high-performance dual-frequency independently modulated electrochromic film, such as figure 1 As shown, the specific steps are as follows:
[0030] Step 1: Mix indium chloride / nitrate, tin chloride, alcohols and chemical modifiers, stir at 50-70°C for 1-2 hours to obtain ITO photosensitive sol; then mix the ITO photosensitive sol Plating on ITO substrate, drying at 70-90℃ to form ITO photosensitive gel film;
[0031] In step 1, the chloride and nitrate of indium are InCl 3 4H 2 O, InCl 3 , In(NO 3 ) 3 or In(NO 3 ) 3 4.5H 2 One of O, or a mixture in any proportion; the chloride salt of tin is SnCl 4 ·5H 2 O or SnCl 2 2H 2 One of O, or a mixture of two in any proportion;
[0032] In step 1, the alcohols are one of methanol, industrial ethanol, absolute methanol, absolute ethanol, isopropanol or n-butanol or a mixture formed in any proportion; the chemical modifier is acetylacetone or phenylacetone;...
Embodiment 1
[0046] A method for preparing a high-performance dual-frequency independent modulation electrochromic film, the specific steps are as follows:
[0047] 10g of In(NO 3 ) 3 4.5H 2 O, 0.83g of SnCl 4 ·5H 2 O. Mix with 16ml of AcAcH and 20ml of absolute ethanol and stir at 50°C for about 1 hour to obtain an ITO photosensitive sol. Wherein the molar ratio of In, Sn, AcAcH is 1:0.09:6.
[0048] The sol was plated on an ITO substrate by a sol-gel process, dried in an oven at 70°C to form an ITO photosensitive gel film, and then exposed to a double-beam interference system capable of obtaining a 150nm periodic lattice for 15 minutes to obtain the corresponding Gel film after exposure. Finally, the gel film was dissolved and washed in ethanol to obtain a patterned nano-ITO gel film. Subsequently, heat treatment was performed in an oxygen furnace at 400° C. for 1 h to obtain inorganic nano-ITO lattices with a period of 150 nm.
[0049] 5g of WCl 6 Dissolved in 30ml of ethanol, ...
Embodiment 2
[0052] A method for preparing a high-performance dual-frequency independent modulation electrochromic film, the specific steps are as follows:
[0053] 15g of In(NO 3 ) 3 4.5H 2 O, 1.51g of SnCl 4 ·5H 2 O. Mix with 32ml of AcAcH and 30ml of absolute ethanol and stir at 70°C for about 2h to obtain an ITO photosensitive sol. Wherein the molar ratio of In, Sn, AcAcH is 1:0.11:8.
[0054] The sol was plated on the ITO substrate by the sol-gel process, dried in an oven at 90°C to form an ITO photosensitive gel film, and then exposed to a double-beam interference system that can obtain a 600nm periodic grating for 20 minutes to obtain the corresponding exposure post gel film. Finally, the gel film was dissolved and washed in ethanol to obtain a patterned nano-ITO gel film. Subsequently, it was placed in a common muffle furnace at 400° C. for 1.5 h of heat treatment to obtain an inorganic nano-ITO grating with a period of 600 nm.
[0055] 10g of WCl 6 Dissolved in 50ml of et...
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