Postdoctoral Research Associate &
Phone: 765-494-6984 (o);
E mail : firstname.lastname@example.org
304A Potter Bldg, 500 Central Drive,
West Lafayette, Indiana 47907
Dr. El-Atwani research is focused on materials under extreme environments and in particular, ion beam/laser irradiation of hard materials surfaces including tungsten as a plasma material interface (PMI) and semiconductors. One of his current research topics focuses on the irradiation tolerance of tungsten materials for future nuclear fusion reactors with an emphasis on understanding how helium irradiation affects ultrafine and multimodal tungsten materials formed by spark plasma sintering and severe plastic deformation techniques. He tries to understand the early stages of bubbles and nanostructures formation on these materials at low and high temperatures by performing ion beam irradiation at low energies with in-situ surface erosion measurement or in-situ transmission electron microscopy. He is also working on simulating the performance of high Z materials (such as tungsten) as a plasma facing component using high power lasers ranges from nanosecond to millisecond pulsed lasers.
His other research topic focuses on nanopatterning of semiconductor surfaces (III-V semiconductors and silicon) via ion beam irradiation at energies near sputtering threshold. He is running the Particle and Radiation Interaction of Hard and Soft Matter (PRIHSM) facility.
Ph.D. Materials Science Engineering (Purdue University)
M.S. Material Engineering (Sabanci University)
B.S. Chemistry (Middle East Technical University)
BS Chemical Engineering (Middle East Technical University)
Research and academic interests
Ion beam nanostrucuring, Radiation and particle transport in materials, Ion beam implantation, Ion beam mixing, In-situ techniques (such as TDS, XPS, EDS, PL, TEM, GISAXS) and ex-situ techniques (like AFM, PL, FIB, SQUID, HRTEM, STEM).
Professional Service distinctions and awards
Gursel Sonmez research award, Sabanci University (2008)
Yousef Jameel Fellowship Award, Sabanci University (2005-08)
First in Rank in Chemistry Department, METU (2001-2004)
Second in Rank in Chemical Engineering Department, METU (2002,2003)
Third in Rank in Chemical Engineering Department, METU (2002-2003)
Third in Rank in the Official Exams- South of Lebanon (2000)
Farid, N, Harilal S.S., O. El-Atwani, Ding H., and Hassanein A. (2014)
Experimental simulation of materials degradation of plasma facing components using lasers
Nuclear Fusion 54 Art. No. 012002 PDF
M. Efe, O. El-Atwani, Y. Guo, and D. R. Klenosky, (2014)
Microstructure refinement of tungsten by surface deformation for irradiation damage resistance
Scripta Materialia 70, 31-34
O. El-Atwani, S. Gonderman, A. DeMasi, A. Suslova, J. Fowler, M. El-Atwani, K. Ludwig, and J. P. Allain, (2013) Nanopatterning of metal-coated silicon surfaces via ion beam irradiation: Real time x-ray studies reveal the effect of silicide bonding
" Journal of Applied Physics 113, 124305
O. El-Atwani, S. Gonderman, and J. P. Allain (2013)
Near sputter-threshold GaSb nanopatterning,
Journal of Applied Physics 114, 104308 (2013)
O. El-Atwani, M. Efe, B. Heim, and J. P. Allain (2013) Surface damage in ultrafine and multimodal grained tungsten materials induced by low energy helium irradiation,
Journal of Nuclear Materials 434, 170-177 .
O. El-Atwani, A. Suslova, A. DeMasi, S. Gonderman, J. Fowler, M. El-Atwani, K. Ludwig, and J. P. Allain (2012) Real time x-ray studies during nanostructure formation on silicon via low energy ion beam irradiation using ultrathin iron films
Applied Physics Letters 101, 263104
O. El-Atwani, J. P. Allain, and A. Suslova (2012) The effect of native oxide on ion-sputtering-induced nanostructure formation on GaSb surfaces
Applied Physics Letters 101, 251606
O. El-Atwani, J. P. Allain, and S. Ortoleva (2012)
In-situ probing of near and below sputter-threshold ion-induced nanopatterning on GaSb(100)
Nuclear Instruments & Methods in Physics Research Section B 272, 210-213
O. El-Atwani, D. V. Quach, M. Efe, P. R. Cantwell, B. Heim, B. Schultz, E. A. Stach, J. R. Groza, and J. P. Allain (2011), Multimodal grain size distribution and high hardness in fine grained tungsten fabricated by spark plasma sintering, Materials Science and Engineering A 528, 5670-5677 .
O. El-Atwani, S. Ortoleva, A. Cimaroli, and J. P. Allain (2011)
Formation of silicon nanodots via ion beam sputtering of ultrathin gold thin film coatings on Si Nanoscale Research Letters 6, 403.
Jean Paul Allain, Osman El-Atwani, Alex Cimaroli, Daniel L. Rokusek, Sami Ortoleva, Anastassiya Suslova, “Study of scalable IBS nanopatterning mechanisms for III-V semiconductors using in-situ surface characterization” Mater. Res. Soc. Symp. Proc. Vol. 1354, 2011
O. El-Atwani, J. P. Allain, A. Cimaroli, A. Suslova, and S. Ortoleva (2011)
The significance of in situ conditions in the characterization of GaSb nanopatterned surfaces via ion beam sputtering, Journal of Applied Physics 110, 074301
O. El-Atwani, T. Aytun, O. F. Mutaf, V. Srot, P. A. van Aken, and C. W. Ow-Yang (2010) Determining the Morphology of Polystyrene-block-poly(2-y=vinylpyridine) Micellar Reactors for ZnO Nanoparticle Synthesis, Langmuir 26, 7431-7436
O. El-Atwani, T. Aytun, O. F. Mutaf, V. Srot, P. A. van Aken, and C. W. Ow-Yang (2010) Correction to Determining the Morphology of Polystyrene-block-poly(2-vinylpyridine) Micellar Reactors for ZnO Nanoparticle Synthesis (vol 26, pg 7431, 2010), Langmuir 26, 14389-14389
T. Aytun, O. F. Mutaf, O. J. el-Atwani, and C. W. Ow-Yang (2008)
Nanoscale Composition Mapping of Segregation in Micelles with Tapping-Mode AFM
Langmuir 24, 14183-14187
O. El-Atwani, C. Baristiran, A. Erden, and G. Sonmez (2008)
A stable, low band gap electroactive polymer: Poly(4,7-dithien-2-yl-2,1,3-benzothiadiazole)
Synthetic Metals 158, 83-89 .
O. Albayrak, O. El-Atwani, and S. Altintas (2008), Hydroxyapatite coating on titanium substrate by electrophoretic deposition method: Effects of titanium dioxide inner layer on adhesion strength and hydroxyapatite decomposition, Surface & Coatings Technology 202, 2482-2487.
A. Erden, C. Baristiran, O. El-Atwani, and G. Sonmez (2006), POLY 144-A new highly stable polymer for solar cells and near-infrared applications, Abstracts of Papers of the American Chemical Society 232. .