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IRTG / Soft Matter Science
Stefan-Meier-Str. 21
79104 Freiburg, Germany

+49 761 203 678 34
softmattergraduate[at]uni-freiburg.de


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You are here: Home Events Prof. Marcus Müller "Kinetics of structure formation and defects in block copolymers"

Prof. Marcus Müller "Kinetics of structure formation and defects in block copolymers"

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Institute for Theoretical Physics, Soft Matter/Biophysics, University of Göttingen, Germany

What
  • Seminar
When Jul 26, 2017
from 02:15 PM to 03:00 PM
Where Seminarraum A, FMF, Stefan-Meier-Str. 21, Freiburg
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The self-assembly of copolymers into spatially modulated phases on the length scale of tens of nanometers offers opportunities for fabricating e.g., microelectronic structures. Applications often require extremely low density of defects and the alignment and registration of the copolymer morphology with external boundaries.  Since the free-energy landscape of copolymer materials exhibits a multitude of metastable minima that correspond, e.g., to local defects, external guiding fields are required to direct the self-assembly.

Using computer simulation we illustrate different processing protocols, e.g., thermal annealing, electric fields, roll-casting or spray coating and discuss how these influence the kinetics of structure formation and determine defect density and alignment of the morphology.

Li W.H., Nealey P.F., de Pablo J.J., Müller M. Phys. Rev. Lett. 113:168301, 2014
Müller M., Tang J. Phys. Rev. Lett. 115:228301, 2015
Tang Q., Tang J., Müller, M. Eur. Phys. J. Special Topics 225:1785, 2016
Li W.H., Müller, M. Macromolecules 49:6126, 2016
Li W.H., Müller, M. Prog. Polym. Sci. 54-55:47, 2016
Welling U., M. Müller, M. Soft Matter 13:486, 2017
 

invited by Maxim Dolgushev

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