XVII-ICSMV

EVALUATION OF LUMINESCENT PROPERTIES OF CERAMIC POWDERS OF THE CEO2:EU2O3 SYSTEM

Not scheduled

1h 30m

Museo Caracol (Ensenada, México)

Oral Luminescence Phenomena: Materials and Applications LUMINESCENCE PHENOMENA

Speaker

Ms María del Rosario González García (Instituto Politécnico Nacional-Centro de Investigación e Innovación Tecnológica)

Description

In recent years, materials based on rare earth oxides have gained great importance in modern technology, due to the innovative properties they have. For application in different scientific-technological branches, ranging from the synthesis of hybrid materials to the development of new ceramic materials. The study of nanoparticles based on cerium oxides using the sol-gel method has become of great interest, because this method allows control through various parameters (lower temperatures than in other methodologies) such as: crystalline structures of materials, morphologies, sizes and obtaining products with a high degree of purity. This allows us to undertake a more complete study of the properties that this matrix has. In addition to the possible applications that can be developed, due to its unique properties. The focus of this work is the synthesis of undoped ceramic powders, with doping and mixtures with europium oxide using the sol-gel method, to obtain gels with molar concentrations (Ce:Eu= 100:0, 98 :2, 95:5, 92:8, 90:10, 70:30). The gels will be thermally treated at a temperature of 700 °C for 24 hours, to promote their crystallization and subsequently reveal the crystalline structure. Finally, the products obtained will be characterized structurally and morphologically. Its luminescent properties will be studied using infrared spectroscopy (IR), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and photoluminescence. These studies will allow establishing a correlation between their properties, revealing their structural and luminescent properties to understand the behavior of these materials and thus expand their field of application.

Reference

E. Anne, D'Achille, R. Wallace, J. Coffer, Morphology-dependent fluorescence of europium-doped cerium oxide nanomaterials, Department of Chemistry and Biochemistry, Texas Christian University, (2021) , 3, 3563-3572, doi:0.1039/d1na00096a

This work was supported by

By CONACYT for the financial support of the scholarship. By the support of the CNMN-IPN and CREA CIITEC materials characterization laboratories. By the National Polytechnic Institute through the SIP with project 20241489.