Electron-Ion mixed conduction of BaCe0.90Y0.10O3-δ Thin film generated by Ru substitution

Masanori Ochi, Takashi Tsuchiya, Shohei Yamaguchi, Takaaki Suetsugu, Naoya Suzuki, Masaki Kobayashi, Makoto Minohara, Koji Horiba, Hiroshi Kumigashira, Tohru Higuchi

研究成果: Article査読

3 被引用数 (Scopus)


The structural and electrical properties of a c-Axis-oriented BaCe0.85Ru0.05Y0.10O3-δ (BCRY) thin film on an Al2O3(0001) substrate depending on film thickness have been studied. The lattice constant of the c-Axis decreases with increasing film thickness. The electrical conductivity is higher in the thin film with a small lattice constant. The activation energy (EA) of the dry BCRY thin film with a high conductivity is 0.26 eV, which corresponds to half of that of the bulk ceramic. The BCRY thin film exhibits electron-ion mixed conduction with a small EA of 0.18 eV below 400 °C in H2O atmosphere. The Ce3+ state created by oxygen vacancies, which locates at the top of the valence band, plays an important role in the electron-ion mixed conduction or proton conduction of the BCRY thin film.

ジャーナルjournal of the physical society of japan
出版ステータスPublished - 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Electron-Ion mixed conduction of BaCe<sub>0.90</sub>Y<sub>0.10</sub>O<sub>3-δ</sub> Thin film generated by Ru substitution」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。