Startseite Microstructure and selected mechanical and electrical property analysis of Sr-doped LaCoO3 perovskite thin films deposited by the PLD technique
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Microstructure and selected mechanical and electrical property analysis of Sr-doped LaCoO3 perovskite thin films deposited by the PLD technique

  • Łukasz Cieniek , Agnieszka Kopia , Jan Kusiński , Kazimierz Kowalski , Tomasz Moskalewicz , Anna Cyza und Wojciech Maziarz
Veröffentlicht/Copyright: 11. Januar 2019
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 110 Heft 1

Abstract

This work presents the results concerning microstructural, mechanical property and electrical resistance investigations of La1-xSrxCoO3 thin films produced by the laser ablation (PLD – Pulsed Laser Deposition) method on Si and MgO single crystal substrates with (001) orientation. The microstructure and chemical/phase composition analysis of the deposited films was carried out using scanning/transmission electron microscopy, X-ray diffraction and atomic force microscopy. Additionally, adhesion and nanohardness tests were performed. The investigations allowed verification of the quality of the prepared La1-xSrxCoO3 thin films and show that implementing the PLD technique makes it possible to obtain smooth and dense films with nanocrystalline structures, while preserving the composition of the bulk target. Research studies showed that by properly selecting the parameters for the PLD process it is possible to deposit films with a significantly lower amount and smaller size of undesirable nanoparticles. A specialized measuring station was used to determine the response of thin films to an oxidizing gas atmosphere. The observed decrease in resistance of the thin films in the presence of 50 ppm of NO2 oxidizing gas is typical for p-type semiconductors. This indicates that all of the produced films exhibit a sensitivity to this gas and could be used as NO2 sensors.

Keywords: Laser ablation; Thin films; Perovskites; Gas-sensing materials; Electrical resistance
*Correspondence address, Łukasz Cieniek, Ph.D., Department of Surface Engineering and Materials Characterization, Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Poland, Tel.: (+48)126172917, Fax: (+48)126172639, E-mail: , Web: http://galaxy.uci.agh.edu.pl/~wmiim/

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Received: 2017-09-14
Accepted: 2017-12-05
Published Online: 2019-01-11
Published in Print: 2019-01-09

© 2019, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. XVI International Conference on Electron Microscopy
  5. Original Contributions
  6. Application of analytical electron microscopy and FIB-SEM tomographic technique for phase analysis in as-cast Allvac 718Plus superalloy
  7. Microstructure and properties of laser interference crystallized amorphous FeSiB ribbon
  8. Analysis of amorphous regions in severely marformed NiTi shape memory alloy
  9. Structure of MgLiAl alloys after various routes of severe plastic deformation studied by TEM
  10. Microstructure and selected mechanical and electrical property analysis of Sr-doped LaCoO3 perovskite thin films deposited by the PLD technique
  11. Microstructure of an oxide scale formed on ATI 718Plus superalloy during oxidation at 850 °C characterised using analytical electron microscopy
  12. Effect of powder morphology on the microstructure and properties of cold sprayed Ni coatings
  13. Microstructure of Ti/Al multilayer foils ignited with electric current
  14. Evolution of γ′ morphology and γ/γ′ lattice parameter misfit in a nickel-based superalloy during non-equilibrium cooling
  15. Effect of heat treatment on the precipitation hardening in FeNiCoAlTaB shape memory alloys
  16. The structure and formation mechanism of FeS2/Fe3S4/S8 nanocomposite synthesized using spherical shaped Fe3O4 nanoparticles as the precursor
  17. Short Communications
  18. Characterization of Inconel 625 surface layer modified by laser shock processing
  19. DGM News
  20. DGM News
https://doi.org/10.3139/146.111618
Schlagwörter für diesen Artikel
Laser ablation; Thin films; Perovskites; Gas-sensing materials; Electrical resistance

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. XVI International Conference on Electron Microscopy
  5. Original Contributions
  6. Application of analytical electron microscopy and FIB-SEM tomographic technique for phase analysis in as-cast Allvac 718Plus superalloy
  7. Microstructure and properties of laser interference crystallized amorphous FeSiB ribbon
  8. Analysis of amorphous regions in severely marformed NiTi shape memory alloy
  9. Structure of MgLiAl alloys after various routes of severe plastic deformation studied by TEM
  10. Microstructure and selected mechanical and electrical property analysis of Sr-doped LaCoO3 perovskite thin films deposited by the PLD technique
  11. Microstructure of an oxide scale formed on ATI 718Plus superalloy during oxidation at 850 °C characterised using analytical electron microscopy
  12. Effect of powder morphology on the microstructure and properties of cold sprayed Ni coatings
  13. Microstructure of Ti/Al multilayer foils ignited with electric current
  14. Evolution of γ′ morphology and γ/γ′ lattice parameter misfit in a nickel-based superalloy during non-equilibrium cooling
  15. Effect of heat treatment on the precipitation hardening in FeNiCoAlTaB shape memory alloys
  16. The structure and formation mechanism of FeS2/Fe3S4/S8 nanocomposite synthesized using spherical shaped Fe3O4 nanoparticles as the precursor
  17. Short Communications
  18. Characterization of Inconel 625 surface layer modified by laser shock processing
  19. DGM News
  20. DGM News
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