A study of antireflective and antistatic coating with ultrafine particles

Abstract A new antireflective and antistatic coating with ultrafine particles is developed. The coating consisted of two layers based on an antireflective layer of SiO 2 ultrafine particles that is uniformly a single particle thick and a conductive layer composed of multiple SnO 2 ultrafine particles. The outer surface of the antireflective layer is alternately concave convex, owing to the arrangement of SiO 2 particles. The refractive index of this layer therefore decreases gradually from its inner to its outer surface. Thus, the total reflectivity can be reduced. The coating provides low reflectivity and electrical resistance in addition to high resolution and contrast.