Preparation method of photonic crystal with inverse opal structure
An anti-opal structure and photonic crystal technology, applied in crystal growth, chemical instruments and methods, single crystal growth, etc., can solve the problems that colloids are difficult to fill gaps, opal structures are easy to fall off and destroy, and consume a lot of manpower, material resources and financial resources. , to achieve the effect of low cost, simple method and convenient operation
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[0034] Take 0.1 ml 10% polystyrene microsphere suspension emulsion (weight percentage, particle size: 330nm) and 0.05 ml 10% TEOS aqueous solution (weight percentage, SiO 2 Calculate) Put it into a 4ml cuvette, and add 3ml of mill-Q water to the cuvette, ultrasonically disperse for 10 minutes, and mix the above solution evenly. Then put a clean glass substrate vertically into the cuvette. Put the cuvette on the heating table, at 75℃, the polystyrene microsphere template and SiO 2 The colloidal matrix was assembled and grown on a glass substrate, kept for 48 hours, and then taken out to obtain polystyrene microspheres and SiO 2 Compound structure of colloid. Put the above composite structure on a high-temperature heating table, heat it in air at 375 ℃ for 10 hours, and then take it out, thereby obtaining high-quality, defect-free SiO 2 Inverse opal structure.
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