Growth mechanism and vibrational and optical properties of SrMoO4: Tb3+, Sm3+ particles: green–orange tunable color

• Published in: Journal of materials science Vol. 55; no. 20; pp. 8610 - 8629
• Main Authors: Dos Santos, D. F., Lovisa, L. X., Santiago, A. A. G., Li, M. Siu, Longo, E., Bomio, M. R. D., Motta, F. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.07.2020; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemical composition; Chemistry and Materials Science; Classical Mechanics; Crystallography and Scattering Methods; Electronic Materials; Field emission microscopy; Field emission spectroscopy; Light emission; Materials Science; Morphology; Optical properties; Photoluminescence; Polymer Sciences; Raman spectroscopy; Solid Mechanics; Sonochemical reactions; Spectrum analysis; White light
• ISSN: 0022-2461; 1573-4803
• DOI: 10.1007/s10853-020-04623-5

A SrMoO 4 series co-doped with Tb 3+ and Sm 3+ was successfully prepared by the sonochemical method. The particles were characterized by X-ray diffraction, Raman spectroscopy, field emission gun scanning electron microscopy, UV–Vis spectroscopy and photoluminescence. Changes in SrMoO 4 : Tb 3+ , Sm 3+ morphologies were observed from an orderly growth of the particles. The mechanism of particle growth was proposed, indicating a hierarchical evolution of SrMoO 4 : Tb 3+ , Sm 3+ morphologies. The changes in emissions were evaluated by the effect of the dopants and their concentrations. Emissions were observed in white, green and orange according to the chemical composition of the samples. The SrMoO 4 and SrMoO 4 : 1% Sm samples showed excellent results for CRI (79%) and LE (> 310 lm/W opt ), thus indicating a material with potential for efficient white light emission.