title: Molecular Design for Tailoring a Single-Source Precursor for Bismuth Ferrite.
abstract: Nearly phase-pure bismuth ferrite particles were formed by thermolysis of the single-source precursor [Cp(CO)2FeBi(OAc)2] (1) in octadecene at 245 °C, followed by subsequent calcination at 600 °C for 3 h. In contrast, the slightly modified compound [Cp(CO)2FeBi(O2C(t)Bu)2] (2) yielded only mixtures of different bismuth oxide phases, revealing the distinctive influence of molecular design in material synthesis. The chemical composition, morphology, and crystallinity of the resulting materials were investigated by X-ray diffraction, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. In addition, the optical properties were investigated by Fourier transform infrared and UV-vis spectroscopies, showing a strong band gap absorption in the visible range at 590 nm (2.2 eV). The magnetic behavior was probed by vibrating-sample and superconducting quantum interference device magnetometry, as well as (57)Fe Mössbauer spectroscopy.
authors.affiliation: Faculty of Chemistry, Inorganic Chemistry, and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Universitätsstrasse 7, 45114 Essen, Germany.
authors.forename: Georg
authors.initials: G
authors.lastname: Bendt
authors.affiliation: Institut für Chemie, Humboldt-Universität zu Berlin , Brook-Taylor-Straße 2, 12489 Berlin, Germany.
authors.forename: Rafael
authors.initials: R
authors.lastname: Schiwon
authors.affiliation: Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Lotharstrasse 1, 47048 Duisburg, Germany.
authors.forename: Soma
authors.initials: S
authors.lastname: Salamon
authors.affiliation: Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Lotharstrasse 1, 47048 Duisburg, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Landers
authors.affiliation: Interdisciplinary Center for Analytics on the Nanoscale, Nano Energie Technik Zentrum , Carl-Benz-Strasse 199, 47047 Duisburg, Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Hagemann
authors.affiliation: Institut für Chemie, Humboldt-Universität zu Berlin , Brook-Taylor-Straße 2, 12489 Berlin, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Limberg
authors.affiliation: Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Lotharstrasse 1, 47048 Duisburg, Germany.
authors.forename: Heiko
authors.initials: H
authors.lastname: Wende
authors.affiliation: Faculty of Chemistry, Inorganic Chemistry, and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen , Universitätsstrasse 7, 45114 Essen, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Schulz