Alkaline earth fluoride and Eu3+ doped thin films obtained by electrochemical processing

• Published in: Journal of solid state electrochemistry 2023-08, Vol.27 (8), p.2115-2125
• Main Authors: Bustamante, A., Barranco, J., Calixto, M. E., López-Cruz, E., Aguilar-Zárate, P.
• Format: Article
• Language: English
• Subjects: Analytical Chemistry; Characterization and Evaluation of Materials; Chemical composition; Chemistry; Chemistry and Materials Science; Chromaticity; Condensed Matter Physics; Electrochemistry; Electrodeposition; Energy Storage; Europium; Light emission; Optical properties; Original Paper; Photoluminescence; Physical Chemistry; Thin films
• ISSN: 1432-8488; 1433-0768
• DOI: 10.1007/s10008-023-05481-2

In this study, alkaline earth fluorides (MF 2 ) and MF 2 :Eu 3+ doped (M = Mg, Ca, Sr) thin films were obtained by electrochemical processing. In order to figure out the optimized deposition conditions, several experiments were performed within specific electrodeposition potential ranges for each MF 2 system. Results on the morphology, chemical composition, structural, and optical properties of MF 2 and MF 2 :Eu 3+ doped thin films are presented in this work. All samples were subjected to a thermal annealing process at 550 °C for 2 h in an N 2 atmosphere to improve the samples’ crystallinity and to promote an increase in the photoluminescence response in MF 2 :Eu 3+ (16.66 mol %) thin films. Photoluminescence studies were performed by using an excitation wavelength of 280 nm, and the CIE chromaticity diagram for MF 2 :Eu 3+ (16.66 mol %) exhibits the expected red-light emission.