Synthesis and luminescence property of Eu 3+/ZrO2 thin film by the liquid phase deposition method

Transparent Eu3+-doped metal oxide thin films have been directly fabricated on various kinds of substrates by the liquid phase deposition (LPD) method. The stabilization of Eu3+ 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 degrees C. The strong excitation peak due to charge transfer (CT) band was observed. After being annealed at 900 degrees C, the deposited film shows characteristic strong emission from Eu3+, D-5(0) -> F-7(2), under CT band excitation. (c) 2005 Elsevier B.V. All rights reserved.