Perovskite-Structured
PbTiO<sub>3</sub> Thin Films Grown from a Single-Source Precursor
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Abstract
Perovskite-structured
lead titanate thin films have been grown on FTO-coated glass substrates
from a single-source heterometallic molecular complex, [PbTi(μ<sub>2</sub>-O<sub>2</sub>CCF<sub>3</sub>)<sub>4</sub>(THF)<sub>3</sub>(μ<sub>3</sub>-O)]<sub>2</sub> (<b>1</b>), which was
isolated in quantitative yield from the reaction of tetraacetatolead(IV),
tetrabutoxytitanium(IV), and trifluoroacetic acid from a tetrahydrofuran
solution. Complex <b>1</b> has been characterized by physicochemical
methods such as melting point, microanalysis, FTIR, <sup>1</sup>H
and <sup>19</sup>F NMR, thermal analysis, and single-crystal X-ray
diffraction (XRD) analysis. Thin films of lead titanate having spherical
particles of various sizes have been grown from <b>1</b> by
aerosol-assisted chemical vapor deposition at 550 °C. The thin
films have been characterized by powder XRD, scanning electron microscopy,
and energy-dispersive X-ray analysis. An optical band gap of 3.69
eV has been estimated by UV–visible spectrophotometry
