Site-Selective Deposition and Micropatterning of Visible-Light-Emitting Europium-Doped Yttrium Oxide Thin Film on Self-Assembled Monolayers

We have developed a novel process for preparing a micropattern of europium-doped yttrium oxide thin films using a patterned self-assembled monolayer. The thin film was transformed into the crystalline phase by annealing at 800 °C for 1 h. Europium-doped yttrium oxide films showed red emission (611 nm) due to photoluminescence excited by 266 nm. The deposition and micropatterning of visible-light-emitting europium-doped yttrium oxide was successfully realized in an aqueous solution under environmentally friendly conditions.