Synthesis and luminescence property of Eu 3+/ZrO 2 thin film by the liquid phase deposition method

Abstract

Transparent Eu 3+-doped metal oxide thin films have been directly fabricated on various kinds of substrates by the liquid phase deposition (LPD) method. The stabilization of Eu 3+ ion in the LPD reaction solution, containing F − anions, was successfully achieved by using diethylenetriaminepentaacetic acid (DTPA) as a masking regent. The structural and luminescence properties for the deposited films were analyzed. The deposited films consisted of nano-sized spherical particles. The formation of solid-solution was confirmed from the film after annealing above 800 °C. The strong excitation peak due to charge transfer (CT) band was observed. After being annealed at 900 °C, the deposited film shows characteristic strong emission from Eu 3+, 5D 0 → 7F 2, under CT band excitation.