TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The weight ratio of the zeolite nanocrystals to the zeolite precursor is 3:7 to 7:3. The concentrations of the zeolite nanocrystals, the zeolite precursor, and the wetting agent are respectively 0.3-4 wt.%, 0.3-4 wt.%, and 0.03-0.2 wt.%. The zeolite nanocrystals are selected from silica zeolite, aluminum silicate zeolite, or titanium silicate zeolite having MFI or BEA zeolite structure. The zeolite nanocrystals have a particle size of 40-100 nm.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Solvent: The solvent is a combination of water and an alcohol having less than 4 carbons. Preferred Components: The tetraalkylammonium hydroxide is tetrapropyl ammonium hydroxide.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The anti-reflection coating composition further comprises a wetting agent. Preferred Components: The molar ratio of tetraalkylammonium hydroxide to tetraalkoxysilanes is 0.17-0.6. The tetraalkoxysilane is tetraethylorthosilicate. Preferred Method: The method of preparing the anti-reflection coating composition further involves adding a solvent into the coating mixture after the mixing step; concentrating the zeolite precursor sol to a solid content of 20-40 wt.% after the step of preparing the zeolite precursor sol; heating the concentrated zeolite precursor sol at 40-100 degrees C after the concentrating step; and diluting the concentrated zeolite precursor sol after the concentrating step. The zeolite precursor sol is prepared by adding tetraalkoxysilanes to an aqueous solution of tetraalkylammonium hydroxide. The step of preparing the zeolite nanocrystals colloid involves a heating process 150-250 degrees C. EXAMPLE - A composition (test) comprising zeolite precursors combined with zeolite nanocrystals; and Tween 20 (RTM: wetting agent) was prepared, where the weight ratio of zeolite nanocrystal to the sum of zeolite nanocrystal and zeolite precursor was 0.8. Similarly a control composition was also prepared by diluting the zeolite precursor sol with 95% ethanol to an equivalent silica content of 4 wt.%. Anti-reflection coatings on glass substrates were prepared using the test and control compositions and the reflection of the coated glass was measured. The results showed that the test/control composition showed wavelength at minimum reflection (nm) of 687/450; minimum reflection (%) of 0.09/4.8; thickness (nm) of 136/91; refractive index of 1.251/1.43; porosity of 0.588/0.24; and hardness of 2H/3H, respectively.