The Laboratory of Spectroscopy of Functional Materials (LEMAF) in the São Carlos Institute of Physics (IFSC), University of São Paulo (USP), devotes to the research of optical and luminescent functional materials. The research is based on the design, synthesis and structural/photophysical characterization of glasses, ceramics and nanostructured crystals doped with trivalent rare-earth ions and/or highly efficient luminescent species such as organometallic complexes, dyes and quantum dots. These materials find applications in numerous technological devices such as laser active media, amplifiers, sensors, electroluminescent cells, solar concentrators, etc.
The standout of LEMAF lies in the combination of expertise to establish correlations between the photophysical properties and the structural organization of the materials, so as to feedback the synthesis processes and to optimize compositions. To that end, besides the conventional solid-state characterization methods, we employ and develop modern techniques of Nuclear Magnetic Resonance (NMR) and Electronic Paramagnetic Resonance (EPR) and Photoluminescence (PL) spectroscopy. Furthermore, in the search for fundamental understandings, we also include theoretical approaches to our studies.
Glasses and Glass-ceramics doped with RE3+ ions
For over 15 years we have been developing and characterizing glasses and glass-ceramics doped with trivalent rare-earth ions (RE3+), aiming at technological applications such as lasers, amplifiers, converters, solar concentrators, sensors, etc.
Composites, Mesoporous Hybrids and Nanoparticles
Inorganic or hybrid inorganic-organic materials synthesized by sol-gel methodology or other chemical routes, and loaded with luminescent species, as coordination complexes, dyes and quantum dots, are studied aiming at lighting, sensing and theranostic applications.
Structural studies via solid-state NMR and EPR
Development of modern solid-state NMR techniques and employment of magnetic resonance methods for structural and dynamical characterization of disordered materials, focusing on the correlation of functional and structural properties in glasses and inorganic-organic hybrids.
Avenida Trabalhador São-carlense, nº 400 Parque Arnold Schimidt – CEP 13566-590 São Carlos – São Paulo -Brasil
Optical and Luminescent Materials
Avenida João Dagnone, nº 1100 Jardim Santa Angelina – CEP 13563-120 São Carlos – São Paulo – Brasil