Dresden 2009 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
SYSO: Symposium Self-organizing Surfaces and Interfaces
SYSO 4: Self-Organizing Surfaces and Interfaces III
SYSO 4.4: Vortrag
Donnerstag, 26. März 2009, 10:15–10:30, GÖR 226
GISAXS and AFM investigation of Cobalt sputtering onto a polymer template — •Adeline Buffet1, Gerd Herzog1,2, Sebastien Couet1, Rainer Gehrke1, Ralf Roehlsberger1, Andre Rothkirch1, Kai Schlage1, Wilfried Wurth2, Gunar Kaune3, Volker Koerstgens3, Robert Meier3, Ezzeldin Metwalli3, Peter Mueller-Buschbaum3, and Stephan V. Roth1 — 1HASYLAB at DESY, Hamburg, Germany — 2Inst. f. Exp.Phys., Univ. Hamburg, Hamburg, Germany — 3TU Muenchen, Physik-Department Lehrstuhl E13, Garching, Germany
Polymeric nanocomposite materials are outstanding materials for basic research and technological applications such as optical coating, solar cell technology and magnetic recording. Comprehension of their growth process is mandatory to improve the tailoring of the material final properties. Stop-sputter [1] experiments (Cobalt (Co) onto a polystyrene nanoparticle spin coated Si substrate) were performed at the beamline BW4 of the DORIS III storage ring at HASYLAB (DESY, Hamburg). The growth process was investigated using grazing incidence small-angle X-ray scattering (GISAXS [2]). The surface topography of the sputtered samples was then investigated by atomic force microscopy (AFM). We present the GISAXS and AFM measurements, which highlight a two-step growth process. In the initial stages, Co grows on polystyrene colloids. Afterwards, a percolated Co layer is formed, which replicates the full substrate morphology. [1] A. Metwalli et al., Langmuir 24, 4265-4272 (2008) [2] P. Mueller-Buschbaum, Anal. Bioanal. Chem. 376, 3-10 (2003)