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Oriented growth of Sr {sub n} {sub +1}Ti {sub n} O{sub 3} {sub n} {sub +1} Ruddlesden-Popper phases in chemical solution deposited thin films

Journal Article · · Journal of Solid State Chemistry
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  1. Institut fuer Strukturphysik, Fachrichtung Physik der Technischen Universitaet, D-01062 Dresden (Germany)
Oriented thin films of perovskite-related Sr {sub n} {sub +1}Ti {sub n} O{sub 3} {sub n} {sub +1} Ruddlesden-Popper phases (n=1, 2, 3) were grown on (001) single-crystalline SrTiO{sub 3} substrates. Preparation of the films was carried out by wet chemical deposition from metalorganic Sr-Ti solutions (rich in Sr) and subsequent conversion into the crystalline state by thermal treatment in air atmosphere at a maximum temperature of 700 deg. C. Solutions were prepared by a modified Pechini method. The films were investigated by wide-angle X-ray scattering and high-resolution transmission electron microscopy. The phase content of powders prepared from the dried solutions and annealed under similar conditions differed from that present in the films, i.e. only polycrystalline SrTiO{sub 3} was detected together with oxides of Ti and Sr. - Graphical abstract: Cross-sectional image of an oriented chemical solution deposited thin film obtained by high-resolution transmission electron microscopy. Periodical spacings corresponding to SrTiO{sub 3} substrate (right) and Sr{sub 2}TiO{sub 4} Ruddlesden-Popper phase (n=1) film region (left) are marked.
OSTI ID:
20905322
Journal Information:
Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 6 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
Country of Publication:
United States
Language:
English