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Published October 24, 2022 | Version v1
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The impact of Mn nonstoichiometry on the oxygen mass transport properties of La0.8Sr0.2MnyO3±δ thin films

Authors/Creators

  • 1. Department of Advanced Materials for Energy Applications, Catalonia Institute for Energy Research (IREC), Jardins de les Dones de Negre 1, 08930 Sant Adrià del Besòs, Barcelona, Spain
  • 2. Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen, Germany
  • 3. Laboratory of Electron Nanoscopies (LENS), Micro-Nanotechnology and Nanoscopies for electrophotonic Devices (MIND), Department of Electronics and Biomedical Engineering and Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona C/Martí i Franquès 1, Barcelona 08028, Spain
  • 4. Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, 01328 Dresden, Germany
  • 5. Catalan Institute of Nanoscience and Nanotechnology, ICN2, CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, Spain
  • 6. Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Uni-versidad de Cádiz, Campus Rio San Pedro, Puerto Real, Cádiz, 11510, Spain

Description

Dataset for the article: Francesco M Chiabrera et al 2022 J. Phys. Energy 4 044011 (DOI 10.1088/2515-7655/ac98df)

The dataset contains:

  • "AFM.rar" : AFM of LSMy thin films with composition y=0.85 and y=1.00.
  • "cell expansion_experimental and antisite model_Mn compositions.txt": measured lattice expansion and calculated by antisites model
  • "Defect chemistry models.xlsx". Excel worksheet containing the automatic calculation of the three defect chemistry models studied (dilute, Mn vacancies and La antisites)
  • "EDX_Mn compositions.txt" Mn/(La+Sr) ratios (y) measured by EDX
  • "fraction of 18O_exp and fittings.rar" 18O depth profiles measured by SIMS after the exchange at 650 ºC for 3540 s (for y=0.85 and y=1.00) and 4000 s (for y=0.88, y=0.94 and y=0.99) and depth profile fitting.
  • "lattice parameter_Mn composition.txt": evolution of lattice parameter measured by XRD vs Mn content.
  • "oxygen mass transport parameters.rar": diffusivity and oxygen exchange parameter extracted by SIMS for the samples with different Mn content.
  • "PALS intensities_Mn composition.txt": Relative intensities of Mn and La vacancies measured by PALS for different Mn content.
  • "positron lifetimes.rar" : Positron lifetimes of main defects (La and Mn vacancies) as a function of photon energy for different Mn content.
  • "RSM103.rar" Reciprocal SPace maps around 103 reflections of the thin films for different Mn content.
  • "TEM Figures_y0.85.pdf" Collection of TEM cross sectional figures of the sample with y=0.85.
  • "XRD.rar" theta-2theta scans of the LSMy thin films for different Mn content around the 002 reflection.

Files

cell expansion_experimental and antisite model_Mn compositions.txt

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Additional details

Funding

European Commission
EPISTORE - Thin Film Reversible Solid Oxide Cells for Ultracompact Electrical Energy Storage 101017709