Organic-inorganic hybrid material, hybrid film derived therefrom, and method for preparing the same

A method of preparing an organic-inorganic hybrid film, in sequence consisting essentially the steps of:

• dissolving an organically modified Si-alkoxide and an acid aqueous solution in a first solvent having a dielectric constant smaller than 10 to independently form a first solution, and
• dissolving a metal alkoxide in a second solvent having a dielectric constant smaller than 10 to form a second solution free of a chelating agent, wherein the metal alkoxide is formulated as M(OR)x, M represents a metal atom, x is valence of M, and R is a C1-C12 alkyl group;
• mixing the first solution and the second solution to form a mixture solution;
• and
• heating the mixture solution to react the metal alkoxide with the organically modified Si-alkoxide to form organic-inorganic hybrid material, which stably disperse in the mixture solution without aggregation, and wherein the mixture solution has a solid content of about 15-48 wt %;
• transferring the heated mixture solution into a third solvent to form a third solution, wherein a boiling point of the third solvent is higher than boiling points of the first solution and the second solution, and the amount of the third solvent is less than the total amount of the first solvent and the second solvent;
• removing the first and the second solvents of the third solution by heating to increase the solid content of the heated third solution to about 37-73 wt % without aggregation;
• coating the heated third solution onto a substrate;
• and
• baking the substrate to obtain an organic-inorganic hybrid film.

A method for preparing a dispersion solution of an organic-inorganic hybrid material, in sequence consisting essentially of the steps of:

• dissolving an organically modified Si-alkoxide and an acid aqueous solution in a first solvent having a dielectric constant smaller than 10 to form a first solution, and
• dissolving a metal alkoxide in a second solvent having a dielectric constant smaller than 10 to independently form a second solution free of a chelating agent, wherein the metal alkoxide is formulated as M(OR)x, M represents a metal atom, x is valence of M, and R is a C1-C12 alkyl group;
• mixing the first solution and the second solution to form a mixture solution;
• heating the mixture solution to react the metal alkoxide with the organically modified Si-alkoxide to form organic-inorganic hybrid material, which stably disperse in the mixture solution without aggregation, and wherein the mixture solution has a solid content of about 15-48 wt %;
• transferring the heated mixture solution into a third solvent to form a third solution, wherein a boiling point of the third solvent is higher than boiling points of the first solution and the second solution, and the amount of the third solvent is less than the total amount of the first solvent and the second solvent;
• and
• removing the first and the second solvents of the third solution by heating to increase the solid content of the heated third solution to about 37-73 wt % without aggregation.