Improved electrochromic device and mobile terminal comprising same
An electrochromic device and mobile terminal technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of low contrast, poor cycle stability, slow response speed, etc., achieve high contrast, improve comprehensive performance, and improve durability Effect of Aging Properties
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Embodiment 1
[0033] The improved electrochromic device of this embodiment, its preparation method comprises the following steps:
[0034] S1 surface treatment: place the conductive substrate cleaned with deionized water in a mixed solvent composed of ammonia water and hydrogen peroxide, and perform hydroxylation treatment on the surface of the conductive substrate; the volume ratio of ammonia water and hydrogen peroxide is 3:1;
[0035] S2 hydrothermal reaction: dissolve the organic ligand of chemical formula I in DMF solvent, add it to the reaction tank, then add sodium hydroxide solution according to the molar ratio of organic ligand to sodium hydroxide 1:2, heat the temperature of the reaction solution to 50°C, Then immerse the conductive substrate treated in step S1 in the reaction solution, after immersion for 15 minutes, add a zinc nitrate solution with a mass concentration of 20 wt%, adjust the pH value to 6, and raise the reaction temperature to 120°C, continue The reaction time is...
Embodiment 2
[0045] The improved electrochromic device of this embodiment, its preparation method comprises the following steps:
[0046] S1 surface treatment: place the conductive substrate cleaned with deionized water in a mixed solvent composed of ammonia water and hydrogen peroxide, and perform hydroxylation treatment on the surface of the conductive substrate; the volume ratio of the ammonia water and hydrogen peroxide is 1:1;
[0047]S2 hydrothermal reaction: dissolve the organic ligand of chemical formula I in DMF solvent, add it to the reaction tank, then add sodium hydroxide solution according to the molar ratio of organic ligand to sodium hydroxide 1:2, heat the temperature of the reaction solution to 40°C, Then immerse the conductive substrate treated in step S1 in the reaction solution, after immersion for 30min, add a zinc nitrate solution with a mass concentration of 20wt%, adjust the pH value to 4, and raise the reaction temperature to 100°C, continue The reaction time is 5h...
Embodiment 3
[0057] The improved electrochromic device of this embodiment, its preparation method comprises the following steps:
[0058] S1 surface treatment: place the conductive substrate cleaned with deionized water in a mixed solvent composed of ammonia water and hydrogen peroxide, and perform hydroxylation treatment on the surface of the conductive substrate; the volume ratio of the ammonia water and hydrogen peroxide is 2:1;
[0059] S2 hydrothermal reaction: dissolve the organic ligand of chemical formula I in DMF solvent, add it to the reaction tank, then add sodium hydroxide solution according to the molar ratio of organic ligand to sodium hydroxide 1:2, heat the temperature of the reaction solution to 60°C, Then immerse the conductive substrate treated in step S1 in the reaction solution, after immersion for 5 minutes, add a zinc nitrate solution with a mass concentration of 20 wt%, adjust the pH value to 5, and raise the reaction temperature to 150°C, continue The reaction time...
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