Polymetallic citric complexes as precursors for spray-pyrolysis deposition of thin ferrite films

Thin Films for Immobilization of Complexes with Optical Properties

“…The method is used for deposition of thin ferrite films [50], thin films of the perovskite LaFeO 3 [51], thin films of TiO 2 (pure or modified) [52][53][54][55], films of poly-(methyl)methacrylate [28], and thin films of cerium-doped yttrium-iron garnet [56], each of them with potential applications in water purification, oxygen sensing, thermosensors, for deposition of thin yttria-stabilized zirconia films [1,57,58], for crystalline and non-crystalline iron oxide (α-Fe 2 O 3 ) thin films onto glass substrates at different temperatures [59,60], highly structured ZnO layers [61], transparent conducting zinc oxide thin films [62], lead(II) oxide thin films [63], nanoporous aluminum oxide [64], europium doped lanthanum oxide films [65], and UV excited green emitting Eu(II) activated BaAl 2 O 4 and SrAl 2 O 4 [66] and etc. Typical spray pyrolysis equipment consists of an atomizer, precursor solution, substrate heater, and temperature controller.…”

“…The device used [69] is suitable for film deposition. The suspension was passed through a pneumatic nebulizer with a 1 mm nozzle diameter using pressurized O 2 [5,54] or N 2 [50] as a carrier gas. A nebulizer with nozzle of 0.7 mm in diameter was also used [50].…”

“…The suspension was passed through a pneumatic nebulizer with a 1 mm nozzle diameter using pressurized O 2 [5,54] or N 2 [50] as a carrier gas. A nebulizer with nozzle of 0.7 mm in diameter was also used [50]. Microscope slides and optical grade glass of various shapes and sizes were used [51].…”

“…The prepared films had a very good adhesion to the substrate as demonstrated by the standard tests with scotch tape and brass edge. The film thickness was controlled by the number of spraying cycles [50]. Typically, 10 cycles can be applied to produce 0.5 mg/cm 2 layers of TiO 2 that were approximately 1.5 µm thick [54].…”

“…The suspension was sprayed for 30 s periods, separated by intervals of 5 min. The deposited films were heated at 300-500°C for 1 h [54] or 480-750°C for 0.5-3 h [50] in static air. The prepared films had a very good adhesion to the substrate as demonstrated by the standard tests with scotch tape and brass edge.…”