The synthesis and properties of CaCu₃ Ti₄ O₁₂ thin films

Abstract

The CaCu 3 Ti 4 O 12 (CCTO) thin films were synthesized via a metal-organic solution containing stoichiometric amounts of the metal cations at 700°C for 1 h. The stable metal-organic solution was prepared by dissolving calcium nitrate, copper nitrate, and tetrabuty titanate in grain alcohol. The phases, microstructures, and electric properties of CCTO thin films were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscope, and electric measurements. The results show that the CCTO thin films have homogeneous microstructure, smooth surface, low leakage current, and high values of dielectric constant. The low leakage current can be attributed to the small surface roughness. The high value of dielectric constant can be attributed to the internal barrier layer capacitor mechanism and metal-insulator-semiconductor junction of CCTO thin films.

Fabrication of SrAl2O4:Eu2+ films on Si substrates via metal–organic solution

“…Moreover, films deposited by metal-organic solution deposition method (MOSD) are of great and increasing interest for a wide number of materials ranging from metals to insulators because of advantages of large area deposition with good thickness uniformity, precise control of the stoichiometry, and simple equipment [17]. In the present work, we report on the fabrication and optical properties of SrAl 2 O 4 :Eu 2?…”