Mihail Secu , Ph. D
Scientific Researcher 1-st degree

phone: +40-21369 0170 / 161
Fax    : +40-21369 0177
E-mail: msecu@infim.ro
http://www.infim.ro/~secu/

EDUCATION :

1999 - PhD in Physics at the University of Bucharest

1994 - Enrolled for a PhD at University of Bucharest

1992 - Physicist diploma -Optics, Spectroscopy, Plasma and Lasers

1987- 1992 - University of Bucharest, Faculty of Physics,

 

AWARDS:

- Romanian Academy Award (2005) for the group of papers Optical materials with applications for the radiation detection

- Excellence award for oral presentation at the 15th International Conference on defects in Insulating materials ICDIM-2004, Riga LATVIA

 

CURENT RESEARCH FIELD

-Optical characterisation of rare-earth doped materials and radiation induced defects

- Synthesis (sol-gel, melt-quenching) and characterisation of rare-earth doped glass and glass-ceramics

- Up-and down-conversion in the glass ceramics for high-eficiency solar cells

- Nanoparticles size effects in rare-earth doped oxyfluoride glass-ceramics

 

WORKING STAGES ABROAD:

Sept.-Oct. 2008 Visiting scientist at the Fraunhoffer Center Silizium-Photovoltaik, (CSP), Halle Germany, within the project Up- and down-conversion in the glass ceramics for high-eficiency solar cells

 

June-October 2005 Visiting scientist at the University of Groningen, The Nederland in the frame of the project: "Thermoluminescence and Optically Stimulated Luminescence (OSL) dating for geochronometry of samples from the Quaternary", granted by the Neederlandse Organisatie voor Wettenschappelijk Onderzoek (NWO)

 

Jan. 2000-Oct. 2003 Post-doc scholarship at the University of Paderborn Germany, in the frame of the project Photostimulated luminescence of glass-ceramics as X-ray storage phosphors granted by the Deutsche Forschungsgemeinschaft (DFG)

 

INTERNATIONAL PROJECTS:

2011-2012 Capacities (Module 3)-bilateral cooperation between National Institute of Materials Physics, Bucharest-Magurele, ROMANIA and East China University of Science and Technology, Shanghai CHINA entitled Study of Down-Conversion Quantum Cutting Effects on Doped Glasses for Better Exploitation of the Solar Spectrum (head of the romanian research team)

 

2006-2008 Joint research project between ENEA Frascati Rome, Italy and National Institute of Materials Physics, Bucharest-Magurele, Romania entitled Optical Spectroscopy of point defects in heavy doped LiF for photonic applications; (head of the romanian research team)

 

 

COOPERATIONS AGREEMENTS:

- PD Dr. S. Schweizer (Centre for Innovation Competence SiLi-nano, Martin Luther University of Halle-Wittenberg, Halle (Saale), GERMANY

- Prof. Dr. U. Rogulis (Institute of Solid State Physics, University of Latvia, Riga, LATVIA)


LIST OF PUBLICATIONS (selection)

 

1. Nanoparticles size effects in thermoluminescence of oxyfluoride glass-ceramics containing Sm3+-doped CaF2 nanocrystals, M. Secu, Journal of Nanoparticles Research (2010) DOI: 10.1007/s11051-010-0181-2, J Nanopart Res (2011) 13:2727-2732

 

2.Rare-earth doped sol-gel derived oxyfluoride glass-ceramics: Structural and optical characterization, C.E. Secu, M. Secu, C. Ghica, L. Mihut, Optical Materials, Volume 33, Issue 11, Pages 1770-1774 (2011)

 

3. Eu3+-doped CaF2 nanocrystals in sol-gel derived glass-ceramics, M. Secu, C.E. Secu and C. Ghica, Optical Materials 33 (4)  613-617 (2011)

 

4. Structural characterization and photoluminescence of nanocrystalline Ho-doped BaTiO3 derived from sol-gel method, M. Secu, M. Cernea, C.E. Secu, B.S. Vasile J Nanopart Res (2011) 13:3123-3128

 

5. Magneto-optical investigations of rare earth doped sol-gel derived silicate xerogels,C.E. Secu, S. Polosan, M. Secu ,Journal of Luminescence, Volume 131, Issue 8, Pages 1747-1752 (2011)



6. Investigations of the non-isothermal crystallization of CaF2 nanoparticles in Sm-doped oxy-fluoride glasses, Aldica G, Secu M, Journal of Non-Crystalline Solids, vol. 356   Issue: 33-34,1631-1636   (2010)

 

7. Crystallization and spectroscopic properties of Eu-doped CaF2 nanocrystals in transparent oxyfluoride glass-ceramics, M. Secu, C.E. Secu, S. Polosan, G. Aldica and C. Ghica J Non-Cryst. Solids 355, 1869 (2009).

 

8. Structural investigations of sol-gel derived silicate gels using Eu3+ ion-probe luminescence, C.E. Secu, D. Predoi, M. Secu, M. Cernea, G. Aldica, Optical Materials 31 (11), pp. 1745-1748 (2009)

 

9. Photostimulated Luminescence from Fluorochlorozirconate Glass-Ceramics and the Effect of Crystalline Size, S. Schweizer, L.W.Hobbs, M. Secu, J. -M. Spaeth, A. Edgar, G. V. M. Williams and J. Hamli, Journal of Applied Physics 97, 083522 (2005)

 

10. Photostimulated Luminescence in Eu-Doped Fluorochlorozirconate Glass Ceramics,S. Schweizer, L. W. Hobbs, M. Secu, J. -M. Spaeth, A. Edgar, G. V. M. Williams, Appl. Phys. Letters 83 (3), 449-451 (2003)