ROBERTO MATASSA
Nationality Italian
Date of birth 09/06/1969
MAIN ACTIVITIES and RESPONSIBILITIES: Research activity; Management of the EDXD lab;
Education and Training:
2005–2007 Post-Doctoral Research Fellow, Materials Science, Chemistry Department, Università degli studi di Roma "La Sapienza", Italy.
2001–2004 Ph.D. Materials Science, Physics & Chemistry Department, Università degli studi di Roma "La Sapienza", Italy.
Supervisor: Prof R. Caminiti.
Dissertation title: "Amorphous Phase Structural Studies in the Solid State and Third Order Non-linear Optics Studies in Solution of the Phtalocyanines Derivatives".
May 2000 Msc. Physics, Physics Department, Università degli studi di Roma "La Sapienza", Italy.
Supervisor: Prof. R. Caminiti.
Dissertation title: "Structural Studies of Disordered Systems by Energy Dispersive X-ray Diffraction (E.D.X.D.)".
RESEARCH EXPERIENCE
2007–2008 Centro Grandi Apparecchiature. University of Palermo, Italy.
Supervisor: Prof. E. Caponetti.
- Morphology and structural aspects of nano-materials in amorphous phases.
- Oversaw installation of HR-TEM, SAXS, Ultra- and Cryo-Ultramicrotome instruments in new research institute. Supervisor of each facilities for sample preparation, performance analysis, implementation of quality controls procedure and equipment maintenance.
- The high resolution transmission electron microscopy, a JEOL JEM-2100 80-200kV LaB6, is equipped with EDS analysis, SemiSTEM for X-ray mapping, and with CCD camera. The small angle X-ray diffraction scattering facility, a Bruker AXS NANOSTAR U, incorporates a Gobel Mirrors X-ray Optics, real time 2-dimensional detector, Nanography analysis, and a sample chamber that also supports a WAXS configuration. The Ultramicrotome, a Leica EM UC6, is equipped with the Leica EM FC6 cryo chamber and with Leica IC D camera.
2007 Section of Electron Microscopic, Department of Human Anatomy. University of Rome "Sapienza", Italy.
Supervisor: Prof. S. Correr.
- Ultrastructure studies on the ovarian endometriosis by light microscopy and transmission electron microscopy. The samples were embedded in Araldite and post-fixed in osmium tetroxide. Semi-thin and thin sections were cut by Leica UM-UC6 ultramicrotome. Semi-thin samples of about 1 µm were stained by Toluidine blue for LM observation with ZEISS FOMI 2. Thin sections of about 50 nm were stained by uranyl acetate and lead citrate for morphology examination with a ZEISS EM10 TEM.
2005–2007 Chemistry Department, Università degli studi di Roma "La Sapienza", Italy.
Supervisor: Prof. R. Caminiti.
- Characterization of quasi-crystalline materials using a new method of X-ray diffraction investigation for nanostructured materials. By comparison of experimental and theoretical data of two diffraction patterns of different resolution, we study the intramolecular interactions by Energy Dispersive X-ray Diffraction (EDXD) and the molecular packing by Angular Dispersive X-ray Diffraction (ADXD).
- Characterization of amorphous materials in solid and liquid state is performed by EDXD analysis only because of the poor crystalline character of the aggregates. In this case the sample show very large X-ray experimental peak broadening arising from the lower dimensions of the grains.
2003–2004 Physics Department, "Trinity College", Dublin, Ireland.
Supervisor: Prof. W. Blau.
- Third order nonlinear optics studies of Metal-Bis-Phthalocyanines as thin film.
- Z-scan measurements by light source of 6 ns pulses from Q-switched Nd:YAG laser operating at 532 nm, pulse repetition rate of 10 Hz.
- Thin films were prepared by vapour vacuum deposition and by spin-coating on glass substrates.
2003–2004 ISC, CNR, Sezione di Torvergata, Roma, Italy.
Supervisor: Dr. M. Righini.
- Third order nonlinear optics studies of "stapled" bis-phthalocyanine complexes via metal substitution in solution phases.
- Z-scan measurements by light source consisting of an Ar+-pumped, self-mode-locked Ti:Sapphire laser operating at 800-900 nm, ~120 fs temporal pulse width, 76 MHz repetition rate.
2002–2004 ISM, CNR, Sezione di Montelibretti, Roma, Italy.
Supervisor: Dr. G. Rossi.
- Synthesis, Films deposition by sublimation under vacuum and exposure to NO2 gas.
Chemistry Department, Università degli studi di Roma "La Sapienza", Italy.
Supervisor: Prof. C. Caminiti.
- Structural studies of NO2 interaction with Ruthenium phtalocyanines film by Energy Dispersive X-ray Diffraction.
2000–2001 I.N.F.M. Boursary Università degli studi di Roma "La Sapienza", Italy.
Supervisor: Prof. R. Caminiti.