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Epitaxial thin-film growth of Ruddlesden–Popper-type Ba3Zr2O7 from a BaZrO3 target by pulsed laser deposition

Butt, S. H. and Rafique, M. S. and Siraj, K. and Latif, A. and Afzal, A. and Awan, M. S. and Bashir, S. and Iqbal, N. (2016) Epitaxial thin-film growth of Ruddlesden–Popper-type Ba3Zr2O7 from a BaZrO3 target by pulsed laser deposition. Applied Physics A: Materials Science and Processing, 122 (7). ISSN 0947-8396

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Ruddlesden–Popper Ba3Zr2O7 thin films have been synthesized via pulsed laser deposition (PLD) technique. The optimization of deposition parameters in PLD enables the formation of thin film of metastable Ba3Zr2O7 phase from BaZrO3 target. In order to see the post-annealing effects on the structural and optical properties, the deposited Ba3Zr2O7 thin films were annealed at 500, 600 and 800 °C. X-ray diffraction (XRD) reveals the formation of Ba3Zr2O7 phase with tetragonal structure. The changes in the surface of the deposited films were analysed by FE-SEM and AFM. The thin film post-annealed at 500 °C exhibited the best structural, optical and surface properties. Furthermore, the chemical states and chemical composition of the films were determined by X-ray photoelectron spectroscopy (XPS) near the surface. The XPS results show that Ba, Zr and O exist mainly in the form of Ba3Zr2O7 Ruddlesden–Popper-type perovskite structure.

Item Type:Article
Uncontrolled Keywords:Annealing, Barium compounds, Deposition, Epitaxial growth, Film growth, Optical properties, Pulsed laser deposition, Pulsed lasers, X ray diffraction, X ray photoelectron spectroscopy, Chemical compositions, Deposited films, Deposition Parameters, Epitaxial thin film growth, Perovskite structures, Post-annealing effect, Structural and optical properties, Tetragonal structure, Thin films
Subjects:Q Science > QH Natural history
Divisions:Biosciences and Medical Engineering
ID Code:72390
Deposited By: Narimah Nawil
Deposited On:20 Nov 2017 16:23
Last Modified:20 Nov 2017 16:23

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