Chemical bath deposition of textured and compact zinc oxide thin films on vinyl-terminated polystyrene brushes

Autor: Nina J. Blumenstein, Caroline G. Hofmeister, Peter Lindemann, Cheng Huang, Johannes Baier, Andreas Leineweber, Stefan Walheim, Christof Wöll, Thomas Schimmel, Joachim Bill
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Beilstein Journal of Nanotechnology, Vol 7, Iss 1, Pp 102-110 (2016)
Druh dokumentu: article
ISSN: 2190-4286
DOI: 10.3762/bjnano.7.12
Popis: In this study we investigated the influence of an organic polystyrene brush on the deposition of ZnO thin films under moderate conditions. On a non-modified SiOx surface, island growth is observed, whereas the polymer brush induces homogeneous film growth. A chemical modification of the polystyrene brushes during the mineralization process occurs, which enables stronger interaction between the then polar template and polar ZnO crystallites in solution. This may lead to oriented attachment of the crystallites so that the observed (002) texture arises. Characterization of the templates and the resulting ZnO films were performed with ζ-potential and contact angle measurements as well as scanning electron microscopy (SEM), atomic force microscopy (AFM) and X-ray diffraction (XRD). Infrared spectroscopy (IR) measurements were used to investigate the polystyrene brushes before and after modification.
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