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Influence of aqueous precursor chemistry on the growth process of epitaxial SrTiO3 buffer layers

Glenn Pollefeyt (UGent) , Sander Clerick (UGent) , Pieter Vermeir (UGent) , Petra Lommens (UGent) , Klaartje De Buysser (UGent) and Isabel Van Driessche (UGent)
(2014) INORGANIC CHEMISTRY. 53(10). p.4913-4921
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Abstract
In this Article, epitaxial thin films of SrTiO3 were prepared on single crystalline (100) LaAlO3 by an aqueous chemical solution deposition method. By using different chelating agents to stabilize the metal ions in water, the impact of the precursor chemistry on the microstructural and crystalline properties of the films was studied. Thorough investigation of the precursor by means of infrared and Raman spectroscopy as well as thermogravimetric analysis revealed that stable precursors can be obtained in which strontium ions can be either free in the solution or stabilized by one of the chelating agents. This stabilization of strontium ions appeared to be essential in order to obtain single phase SrTiO3 films. Precursors in which Sr2+ remained as free ions showed SrO microcrystal segregation. Precursors in which both metal ions were stabilized gave rise to strongly textured, dense, and terraced SrTiO3 films, allowing subsequent deposition of YBa2Cu3O7-delta with superior superconducting performances.
Keywords
THIN-FILMS, CHEMICAL SOLUTION DEPOSITION, COATED CONDUCTORS, YBA2CU3O7-DELTA-COATED CONDUCTORS, THERMAL-DECOMPOSITION, GEL, COMPLEXES, SURFACE, MICROSTRUCTURE, TEMPERATURES

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MLA
Pollefeyt, Glenn, Sander Clerick, Pieter Vermeir, et al. “Influence of Aqueous Precursor Chemistry on the Growth Process of Epitaxial SrTiO3 Buffer Layers.” INORGANIC CHEMISTRY 53.10 (2014): 4913–4921. Print.
APA
Pollefeyt, G., Clerick, S., Vermeir, P., Lommens, P., De Buysser, K., & Van Driessche, I. (2014). Influence of aqueous precursor chemistry on the growth process of epitaxial SrTiO3 buffer layers. INORGANIC CHEMISTRY, 53(10), 4913–4921.
Chicago author-date
Pollefeyt, Glenn, Sander Clerick, Pieter Vermeir, Petra Lommens, Klaartje De Buysser, and Isabel Van Driessche. 2014. “Influence of Aqueous Precursor Chemistry on the Growth Process of Epitaxial SrTiO3 Buffer Layers.” Inorganic Chemistry 53 (10): 4913–4921.
Chicago author-date (all authors)
Pollefeyt, Glenn, Sander Clerick, Pieter Vermeir, Petra Lommens, Klaartje De Buysser, and Isabel Van Driessche. 2014. “Influence of Aqueous Precursor Chemistry on the Growth Process of Epitaxial SrTiO3 Buffer Layers.” Inorganic Chemistry 53 (10): 4913–4921.
Vancouver
1.
Pollefeyt G, Clerick S, Vermeir P, Lommens P, De Buysser K, Van Driessche I. Influence of aqueous precursor chemistry on the growth process of epitaxial SrTiO3 buffer layers. INORGANIC CHEMISTRY. 2014;53(10):4913–21.
IEEE
[1]
G. Pollefeyt, S. Clerick, P. Vermeir, P. Lommens, K. De Buysser, and I. Van Driessche, “Influence of aqueous precursor chemistry on the growth process of epitaxial SrTiO3 buffer layers,” INORGANIC CHEMISTRY, vol. 53, no. 10, pp. 4913–4921, 2014.
@article{5730630,
  abstract     = {In this Article, epitaxial thin films of SrTiO3 were prepared on single crystalline (100) LaAlO3 by an aqueous chemical solution deposition method. By using different chelating agents to stabilize the metal ions in water, the impact of the precursor chemistry on the microstructural and crystalline properties of the films was studied. Thorough investigation of the precursor by means of infrared and Raman spectroscopy as well as thermogravimetric analysis revealed that stable precursors can be obtained in which strontium ions can be either free in the solution or stabilized by one of the chelating agents. This stabilization of strontium ions appeared to be essential in order to obtain single phase SrTiO3 films. Precursors in which Sr2+ remained as free ions showed SrO microcrystal segregation. Precursors in which both metal ions were stabilized gave rise to strongly textured, dense, and terraced SrTiO3 films, allowing subsequent deposition of YBa2Cu3O7-delta with superior superconducting performances.},
  author       = {Pollefeyt, Glenn and Clerick, Sander and Vermeir, Pieter and Lommens, Petra and De Buysser, Klaartje and Van Driessche, Isabel},
  issn         = {0020-1669},
  journal      = {INORGANIC CHEMISTRY},
  keywords     = {THIN-FILMS,CHEMICAL SOLUTION DEPOSITION,COATED CONDUCTORS,YBA2CU3O7-DELTA-COATED CONDUCTORS,THERMAL-DECOMPOSITION,GEL,COMPLEXES,SURFACE,MICROSTRUCTURE,TEMPERATURES},
  language     = {eng},
  number       = {10},
  pages        = {4913--4921},
  title        = {Influence of aqueous precursor chemistry on the growth process of epitaxial SrTiO3 buffer layers},
  url          = {http://dx.doi.org/10.1021/ic403067h},
  volume       = {53},
  year         = {2014},
}

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