Influence of heteroligands on the composition, structure and properties of homo- and heterometallic zirconium alkoxides. Decisive role of thermodynamic factors in their self-assembly

Perovskite thin films grown by direct liquid injection MOCVD

“…Found, %: C 52. 8 (2) It was obtained in a previous work [9] using modification of a solution of isopropoxides (Sr:Zr = 1:1) in toluene with two equations Hthd. The solubility at room temperature was 30 wt.% (isopropanol) and 10 wt.% (toluene).…”

“…Tetramethylheptanedion, Hthd, was purchased from Aldrich and used without further purification. Synthesis of Sr 2 Zr 2 (thd) 4 (O i Pr) 8 has been described earlier [9]. IR spectra of nujol mulls were registered with a Perkin Elmer FT-IR spectrometer Spectrum 100.…”

“…Single-source precursors, containing all required elements in an already precombined state, may provide a response for the control of the films stoichiometry and a significant lowering of the deposition temperature. Lately, new heterometallic complexes have been proposed as possible single-source precursors of spinels [7] or perovskite compounds such as Sr 2 Zr 2 (thd) 4 (O i Pr) 8 (so called iso-propoxide: i-Pr) [8,9]. This already known precursor was first tested in the MOCVD reactor.…”

“…This already known precursor was first tested in the MOCVD reactor. Another original source precursor was developed with a specific volatility and extended chemical and thermal stabilities, Sr 2 Zr 2 (O n Pr) 8 (thd) 4 ( n PrOH) 2 (so called n-propoxide: n-Pr). In this paper, SZO layers were obtained by MOCVD from these original single-source precursors at www.elsevier.com/locate/apsusc Applied Surface Science 253 (2007) 9091-9098 various substrate temperatures.…”

Alkaline Earth Metal Zirconate Perovskites MZrO3 (M=Ba2+, Sr2+, Ca2+) Derived from Molecular Precursors and Doped with Eu3+ Ions

“…[12] We recently showed that reactions of multimetal components and their transformation into ac omplex product by as ingle-step synthesis route are very attractive for preparing binary oxide nanomaterials. [13][14][15][16][17][18] Such heterometallic compounds with atypical combinations of elements have af ixed metal stoichiometry at the molecular level. [15] Thus, the composition of the oxide products after thermolysis can be easily predicted from the ratio of the metals.…”