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Template-controlled mineralization: Determining film granularity and structure by surface functionality patterns

Blumenstein, N. J.; Berson, J. 1,2,3; Walheim, S. 1,2,3; Atanasova, P.; Baier, J.; Bill, J.; Schimmel, T. 1,2,3
1 Institut für Angewandte Physik (APH), Karlsruher Institut für Technologie (KIT)
2 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
3 Center for Functional Nanostructures (CFN), Karlsruher Institut für Technologie (KIT)

Abstract:

We present a promising first example towards controlling the properties of a self-assembling mineral film by means of the functionality and polarity of a substrate template. In the presented case, a zinc oxide film is deposited by chemical bath deposition on a nearly topography-free template structure composed of a pattern of two self-assembled monolayers with different chemical functionality. We demonstrate the template-modulated morphological properties of the growing film, as the surface functionality dictates the granularity of the growing film. This, in turn, is a key property influencing other film properties such as conductivity, piezoelectric activity and the mechanical properties. A very pronounced contrast is observed between areas with an underlying fluorinated, low energy template surface, showing a much more (almost two orders of magnitude) coarse-grained film with a typical agglomerate size of around 75 nm. In contrast, amino-functionalized surface areas induce the growth of a very smooth, fine-grained surface with a roughness of around 1 nm. The observed influence of the template on the resulting clear contrast in morphology of the growing film could be explained by a contrast in surface adhesion energies and surface diffusion rates of the nanoparticles, which nucleate in solution and subsequently deposit on the functionalized substrate.


Verlagsausgabe §
DOI: 10.5445/IR/110102800
Originalveröffentlichung
DOI: 10.3762/bjnano.6.180
Scopus
Zitationen: 3
Dimensions
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2015
Sprache Englisch
Identifikator ISSN: 2190-4286
urn:nbn:de:swb:90-AAA1101028009
KITopen-ID: 110102800
HGF-Programm 43.22.01 (POF III, LK 01) Functionality by Design
Erschienen in Beilstein journal of nanotechnology
Verlag Beilstein-Institut
Band 6
Seiten 1763-1768
Nachgewiesen in Web of Science
Scopus
Dimensions
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