Growth and photo-response of (110) oriented BaBiO3 films on SrTiO3 (001) substrates

Mitsuhiro Muta, Suguru Nishikawa, Ataru Ichinose, Yukio Sato, Makoto Arita, Yoshifumi Ikoma, Masashi Mukaida

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

Preferred orientation and optical responses were studied for BaBiO3 films grown by pulsed laser deposition. BaBiO3 films have a monoclinic symmetry I2/m, with the (110) preferred orientation on SrTiO3 (001) substrates. From the transmittance spectra of BaBiO3 films, optical bandgaps were estimated to be around 2.3 eV for direct transition and 2.1 eV for indirect transition. From the photo-response transient characteristics of the film, the decay time of photoconductivity was estimated to be 0.48 sec. The relation between ultraviolet light-induced photoconductivity and film crystallinity is clarified. The photoconductivity became low for BaBiO3 films with high crystalline quality which was the opposite result for the case of TiO2 films.

本文言語英語
論文番号139167
ジャーナルThin Solid Films
749
DOI
出版ステータス出版済み - 5月 1 2022

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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