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Personen: Horvat, A. (Autor) 
Knoll, A. (Autor) 
Krausch, Georg (Autor) 
Tsarkova, L. (Autor) 
Lyakhova, K. S. (Autor) 
Sevink, G. J. A. (Autor) 
Zvelindovsky, A. V. (Autor) 
Magerle, R. (Autor) 
Titel: Time evolution of surface relief structures in thin block copolymer Films
Quelle: Macromolecules. Bd. 40. H. 19. Washington : American Chemical Society. S. 6930 - 6939
Erscheinungsjahr:    2007
ISBN / ISSN: 0024-9297
URL der Originalveröffentlichung doi:10.1021/ma071107a
Zeitschriftenaufsatz Zeitschriftenaufsatz
Sprache: Englisch
Open Access:
Person der Universität:    Krausch, Georg  In UnivIS suchen 
Einrichtung: Universitätsleitung
DDC-Sachgruppe:    Physik
ID: 11466  Universitätsbibliothek Mainz
Informationen zu den Nutzungsrechten unserer Inhalte Informationen zu den Nutzungsrechten unserer Inhalte
Abstract: The dynamics of early stage of terrace formation in thin supported films of cylinder forming triblock copolymers was studied both theoretically using self-consistent-field theory (DSCFT) and experimentally by in-situ scanning force microscopy (SFM). In experiment, an initially flat film of incommensurable thickness was imaged continuously, and the evolution of a vertical orientation of cylinders into a parallel one as well as the respective development of thickness gradient (terrace formation) was captured in detail. On the grounds of these experimental observations, the parameters of the computational model A(3)B(12)A(3) were determined to match the structures in experiment. Both systems show excellent agreement in details of structural phase transitions and in the dynamics of the step development, suggesting that the underlying transport mechanisms are governed by diffusion. The early stage of terrace formation is characterized by the development of the step height up to 80% of its equilibrium value and associated reorientation of cylindrical domains.
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