Research Interest/Area of Expertise
Inorganic, Materials & Solid-State Chemistry, Luminescence
Our research interests and expertise focus on the synthesis and structural characterization of functional inorganic materials and nanomaterials employed in optical energy conversion. Our goals are to synthesize new classes of functional materials and nanomaterials, to understand compositional control of structure-function relationships, and to enlarge the toolkit of synthetic and spectroscopic techniques that enable such understanding.
We seek to achieve precise control over the stoichiometry, morphology, structure, and functionality of the materials we synthesize. Synthetic approaches employed in our group include, but are not restricted to, colloidal synthesis, solvothermal synthesis, thermal evaporation, and high-temperature solid state reactions. Once in hand, these materials are characterized using multiple and complementary analytical techniques to achieve a comprehensive description of composition-structure-function relationships. This information is critical to develop materials by design as it enables understanding of the effect of chemical composition on the behavior of functional chemical units. Characterization techniques include elemental analysis (ICP), thermogravimetric and calorimetric analysis (TGA/DSC), powder X-ray diffraction (Rietveld analysis), X-ray total scattering (pair distribution function analysis), X-ray absorption (XANES/EXAFS), electron microscopy (SEM/TEM), vibrational spectroscopy (Raman/IR), and UV-vis diffuse reflectance, and fluorescence spectroscopy (steady-state and time-resolved). Structural studies are an integral part of our research and systematically guide synthetic efforts.
Education – Degrees, Licenses, Certifications
- Ph.D. Chemistry, Northwestern University 2010
- M.Sc. Chemistry, Universidad de la Republica (Uruguay) 2004
- B. Sc. Chemistry, Universidad de la Republica (Uruguay) 2001
Perera, S.S. and Rabuffetti, F.A. "NIR-to-NIR and NIR-to-Blue Light Upconversion in Stoichiometric NaYb(MO4)2 (M = Mo, W)". CrystEngComm2016 in press, doi: 10.1039/c6ce01118g.
Dissanayake, K.T. and Rabuffetti, F.A. "Infrared-to-Visible Upconversion Luminescence in Er:Yb:SrFBr Nanocrystals". Journal of Materials Chemistry C 2016, 4, 2447-2451.
Dissanayake, K.T.; Mendoza, L.M.; Martin, P.D.; Suescun, L.; and Rabuffetti, F.A. "Open-Framework Structures of Anhydrous Sr(CF3COO)2 and Ba(CF3COO)2". Inorganic Chemistry 2016, 55(1), 170-176.
CHM 3020 Intermediate Inorganic Chemistry I, 3 credit hours W2016
CHM 6060/7060 Solid State Materials Chemistry, 3 credit hours F2016