Molecular-Assembly Mediated Crystallization as a Novel Synthetic Route for Ceramics

摘要

We have succeeded in fabricating micropattemed TiO_2 films on self assembled monolayers (SAM) of phenytrichlorosilane (TCS) through the precipitation from an aqueous solution containing TiF_6~(2-) ions. A PTCS monolayer was first formed on a silicon wafer and UV light was irradiated onto the masked monolayer to obtain the SAM with two-dimensionally patterned hydrophilic/hydrophobic surfaces. This patterned substrate was immersed in an aqueous solution to directly deposit TiO_2, (anatase). Sonication treatment after the deposition resulted in a micropattemed TiO_2, thin film.