Synthesis of ZrO2:Tb3+ from Zr(C5H7O2)4 in photoluminescent film form by UPS technique

Abstract

This research consisted of obtaining photoluminescent films of ZrO2:Tb³⁺ as a product of the synthesis of Zr(C5H7O2)4, which were deposited using the Ultrasonic Spray Pyrolitic (UPS) technique on Corning 7059 glass substrates. In a methanol (CH3OH) and dimethylformamide [HCON(CH3)2] dissolution in a 4:1 ratio, adding to the precursor Zr(C5H7O2)4 in 3, 5 and 7M and Tb³⁺ ion as a dopant of 3 to 11% with 2% increments concerning precursor mass, deposition was at a temperature in the substrate of 450°C. Chemical analyses by EDS and IR check the synthesis of ZrO2 in film form. On the other hand, the characterization by DRX of the films of ZrO2 and ZrO2:Tb³⁺ have a compact Tetragonal structure, and a homogeneous coverage was observed using MEB, with spherical particles dispersed on the surface. Furthermore, excitation spectra were performed at λex=336nm, obtaining photoluminescence emission and identifying the electronic transitions associated with the Tb³⁺ ion given in ⁵D4→⁷F6, ⁵D4→⁷F5 (being the main band and of greater intensity), ⁵D4→⁷F4, ⁵D4→⁷F3 with a green emission characteristic of the doping ion. All studies were conducted at room temperature.