Pyrochlore luminescent nano-pigments

Abstract

Pyrochlores are widely studied for their variety of properties according to their composition, hence their versatility. In this bibliographic work, the study of nanopigments with pyrochlore structure with luminescent properties is shown. It focuses on a wide range of theoretically based introductions of pigments, pyrochlore structure and luminescence. Specifically, Eu 3+ doped Gd2Ti2O7 is studied, comparing three methods of synthesis: sol-gel, Pechini and solid state. Finally, the experimental results are proposed through the application of X-Ray diffraction (XRD), Thermogravimetry/Differential Thermal Analysis (TG/DTA), Scanning Electron Microscopy (SEM) and Photoluminescence spectrocopy. Detailed description of each procedure step and discussion of the obtained results have been performed along the project. Additionally, a bibliographic search and description of main theoretical concept on pigments, together with analysis of State of art of inorganic pigments have been performed. Some possible application of the developed materials is proposed.