Effect of the Electron Energy on the Structural Evolution of Functional Perovskite La0.6Ca0.4CoO3 Thin Films Produced by the Pulsed Electron Deposition (PED) Technique

Łukasz Cieniek

doi:10.4028/www.scientific.net/SSP.231.25

Paper Titles

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Effect of the Electron Energy on the Structural Evolution of Functional Perovskite La_0.6Ca_0.4CoO₃ Thin Films Produced by the Pulsed Electron Deposition (PED) Technique
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HomeSolid State PhenomenaSolid State Phenomena Vol. 231Effect of the Electron Energy on the Structural...

Effect of the Electron Energy on the Structural Evolution of Functional Perovskite La_0.6Ca_0.4CoO₃ Thin Films Produced by the Pulsed Electron Deposition (PED) Technique

Abstract:

Functional nonstoichiometric La_0.6Ca_0.4CoO₃ perovskite thin films were deposited on theepi-polished [001] MgO substrates by the electron ablation process (PED - pulsed electron deposition) in low oxygene pressure conditions (~7 x 10^-3 Torr). Deposition process was performed for about 4 hours with the repetition rate of 5 Hz that gave about 72 000 pulses for each sample. By adjusting both the target-substrate distance in the working chamber (70 - 80 mm) as well as the electron energy (10 - 14 kV) it is possible to affect the microstructure and quality of obtained thin films. This paperrelates to the influence of the single pulse electron energy (discharge) on the structure of La_0.6Ca_0.4CoO₃thin films investigated by means of scanning electron microscopy, transmission electron microscopy and atomic force microscopy. The chemical compositions were also examined using energy dispersive spectroscopy. Multiple linear scratch tests allowed to determine the thin films adhesion to the substrates.

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XV International Conference on Electron Microscopy

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Solid State Phenomena (Volume 231)

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25-32

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https://doi.org/10.4028/www.scientific.net/SSP.231.25

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June 2015

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Łukasz Cieniek*

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LaCaCoO₃, Nonstoichiometric Perovskite, Pulsed Electron Deposition, Thin Films

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References

[1] C. Matei, D. Berger, P. Marote, S. Stoleriu, J. Deloume, Lanthanum-based perovskites obtained in molten nitrates or nitrites, Prog. Solid State Chem. 35 (2007) 203-209.

DOI: 10.1016/j.progsolidstchem.2007.01.002

Google Scholar

[2] K. Kleveland, N. Orlovskaya, T. Grande, A.M.M. Moe, M.A. Einarsrud, K. Breder, G. Gogotsi, Ferroelastic behavior of LaCoO3 based ceramics, J. Amer. Ceram. Soc. 84 (2001) 2029-(2033).

DOI: 10.1111/j.1151-2916.2001.tb00953.x

Google Scholar

[3] J. Guo, H. Lou, Y. Zhu, X. Zheng, La-based perovskite precursors preparation and its catalytic activity for CO2 reforming of CH4, Mater. Lett. 57 (2003) 4450-4455.

DOI: 10.1016/s0167-577x(03)00341-0

Google Scholar

[4] M. Anzai, H. Kawakami, M. Saito, H. Yamamura, Thermoelectric properties of p-type perovskite compounds LaCoO3 systems containing the A-site vacancy, Symposium 9C: Ceramics for Electricity, IOP Conf. Series Mater. Sci. Eng. 18 (2011) 142005-142008.

DOI: 10.1088/1757-899x/18/14/142005

Google Scholar

[5] W. J. Shong, Ch-K. Liua, Chenb Ch-Y., Ch. -Ch. Penga, H. -J. Tub, G. T. Feyb, R. Y. Leea, H. -M. Kaoc, Effects of lanthanum-based perovskite coatings on the formation of oxide scale for ferritic SOFC interconnect, Mater. Chem. Phys. 127 1–2 (2011).

Google Scholar

[6] M. Ghasdi, H. Alamdari, CO sensitive nanocrystalline LaCoO3 perovskite sensor prepared by high energy ball milling, Sens. Actuators B: Chemical 148 2 (2010) 478-485.

DOI: 10.1016/j.snb.2010.05.056

Google Scholar

[7] S.W. Biernacki, Temperature-induced spin-state transitions in LaCoO3: A two-level model, Phys. Rev. B 74 (2006) 184420-1-184420-4.

Google Scholar

[8] G. Müller, M. Konijnenberg, G. Krafft, C. Schultheiss, Deposition by means of pulsed electron beam ablation, Science and Technology of Thin Films, edited by F. C. Matacotta, G. Ottaviani, World Scientific (1995), pp.89-119.

DOI: 10.1142/9789814261425_0004

Google Scholar

[9] R.M. Navarro, M.C. Alvarez-Galvan, J.A. Villoria, I.D. González-Jiménez, F. Rosa, J.L.G. Fierro, Effect of Ru on LaCoO3 perovskite-derived catalyst properties tested in oxidative reforming of diesel, Appl. Catal. B-Environmental 73, 3-4 (2007).

DOI: 10.1016/j.apcatb.2006.12.013

Google Scholar

[10] V. Øygarden, H.L. Lein, T. Grande, Structure, thermal expansion and electrical conductivity of Nb-substituted LaCoO3, J. Solid State Chem. 192 (2012) 246-254.

DOI: 10.1016/j.jssc.2012.04.026

Google Scholar

[11] L. Cieniek, J. Kusiński, Microstructural investigations of Ca and La doped CoO thin films prepared by pulsed laser deposition technique, Solid State Phenom. 186 (2012) 168-171.

DOI: 10.4028/www.scientific.net/ssp.186.168

Google Scholar

[12] L. Cieniek, J. Kusiński, Structure and low temperature electrical properties of LaCoO3 perovskite thin film produced by PLD technique, Inzynieria Materialowa 4 194 (2013) 253-256 (in Polish).

Google Scholar