Preparation method for nanocrystal-doped tungsten oxide electrochromic film pattern
A thin-film patterning and electrochromic technology, applied in the fields of optoelectronics and microelectronics, can solve the problems of easily corroded substrates, low efficiency, and inability to prepare thin-film patterns, and achieve the effects of good electrochromic performance, high quality, and clear quality.
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Embodiment 1
[0029] Step 1, the tin dichloride SnCl of 0.386g 2 2H 2 O was dissolved in 4 mL of absolute ethanol, and dry nitrogen was passed into the reaction chamber, and refluxed alternately at 75 ° C and 45 ° C (every 2 hours) for 24 hours to obtain a clear and transparent yellow sol A. Add 0.032g of trifluoroacetic acid to the solution, and continue to reflux at 45°C for 5 hours under nitrogen atmosphere to obtain FTO sol B. The room temperature was 0°C, and after uniform stirring for 2 hours under a dry nitrogen atmosphere, a clear and transparent cyan sol C was obtained; then, B and C were mixed, and stirred at room temperature under a dry nitrogen atmosphere for 0.5 hours to obtain a cyan-yellow composite sol D; Next, add 20.82g of phenylacetone to 378mL of absolute ethanol, stir at room temperature for 2 hours under a dry nitrogen atmosphere, and obtain solution E; finally, mix sol D with solution E, and reflux at 60°C under a dry nitrogen atmosphere After 2 hours, sol F was pre...
Embodiment 2
[0033] Step 1, the tin dichloride SnCl of 0.386g 2 2H 2 O was dissolved in 4 mL of absolute ethanol, and dry nitrogen was passed into the reaction chamber, and refluxed alternately at 75 ° C and 45 ° C (every 2 hours) for 24 hours to obtain a clear and transparent yellow sol A. Add 0.032g of trifluoroacetic acid to the solution, and continue to reflux at 45°C for 5 hours under nitrogen atmosphere to obtain FTO sol B. At the same time, dissolve 16.93g of tungsten chloride in 75mL of absolute ethanol, and use a sufficient amount of ice water The room temperature was 0°C, and after uniform stirring for 2 hours under a dry nitrogen atmosphere, a clear and transparent cyan sol C was obtained; then, B and C were mixed, and stirred at room temperature under a dry nitrogen atmosphere for 0.5 hours to obtain a cyan-yellow composite sol D; Next, add 4.471g of phenylacetone into 50mL of absolute ethanol, stir at room temperature for 2 hours under a dry nitrogen atmosphere, and obtain so...
Embodiment 3
[0037] Step 1, the tin dichloride SnCl of 0.386g 2 2H 2O was dissolved in 4 mL of absolute ethanol, and dry nitrogen was passed into the reaction chamber, and refluxed alternately at 75 ° C and 45 ° C (every 2 hours) for 24 hours to obtain a clear and transparent yellow sol A. Add 0.032g of trifluoroacetic acid to the solution, and continue to reflux at 45°C for 5 hours under a nitrogen atmosphere to obtain FTO sol B. The temperature was 0°C, and after uniform stirring for 2 hours under a dry nitrogen atmosphere, a clear and transparent cyan sol C was obtained; then, B and C were mixed, and after stirring at room temperature under a dry nitrogen atmosphere for 0.5 hours, a cyan-yellow composite sol D was obtained; then , add 13.89g of phenylacetone to 22mL of absolute ethanol, stir at room temperature under a dry nitrogen atmosphere for 2h to obtain solution E; finally, mix sol D with solution E, and reflux at 60°C for 4h under a dry nitrogen atmosphere , the sol F was prepa...
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