Proton Transport and Microstructure Properties in Superlattice Thin Films Fabncated by Pulsed Laser Deposition

• Kuwata Naoaki

  Department of Mechanical Systems and Design, Graduate School of Engineering, Tohoku University 21st Century COE Program, “The Exploration of Frontiers of Mechanical Science Based on Nanotechnology”, Tohoku University

• Sata Noriko

  Department of Mechanical Systems and Design, Graduate School of Engineering, Tohoku University 21st Century COE Program, “The Exploration of Frontiers of Mechanical Science Based on Nanotechnology”, Tohoku University

• Tsurui Takao

  Institute for Materials Research, Tohoku University

• Yugami Hiroo

  Department of Mechanical Systems and Design, Graduate School of Engineering, Tohoku University 21st Century COE Program, “The Exploration of Frontiers of Mechanical Science Based on Nanotechnology”, Tohoku University

書誌事項

タイトル別名

• Proton Transport and Microstructure Properties in Superlattice Thin Films Fabricated by Pulsed Laser Deposition

抄録

Superlattice thin films of the perovskite-type oxide proton conductor SrZr_0.95Y_0.05O₃/SrTiO₃ was fabricated by pulsed laser deposition. Their structural and proton transport properties were reported. X-ray diffraction analysis and selected area electron diffraction revealed that the thin films were epitaxially grown on MgO(001) substrate. High-density edge dislocations and a columnar structure were observed in the films by high-resolution electron microscopy. The in-plane electrical conductivity of the thin films was determined by impedance spectroscopy. The contribution of proton transport to the total conductivity of the films was confirmed by H₂O/D₂O exchange measurement. The conductivity of superlattice films was increased by introducing heterointerfaces. The high activation energy (E_a=1.0 eV) was explained by the grain-boundary effect of the columnar structure in the films.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 44 (12), 8613-8618, 2005

  The Japan Society of Applied Physics

キーワード

• perovskite-type proton conductor
• thin film
• superlattice
• defect chemistry
• TEM
• ionic conductivity

詳細情報

• CRID: 1390282681244873728
• NII論文ID: 10016959373
• NII論文ID: 130004533013
• NII論文ID: 210000059190
• NII書誌ID: AA10457675
• DOI: 10.1143/jjap.44.8613
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• NDL書誌ID: 7748198
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7748198
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.8613
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.44.8613/pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可