Preparation of a blue luminescent nanosheet derived from layered perovskite Bi2SrTa2O9

Shintaro Ida, Chikako Ogata, Ugur Unal, Kazuyoshi Izawa, Taishi Inoue, Ozge Altuntasoglu, Yasumichi Matsumoto

Research output: Contribution to journalArticlepeer-review

114 Citations (Scopus)


We succeeded in the exfoliation of Bi2SrTa2O9 to a mono-nanosheet for the first time. The thickness of the nanosheet obtained by AFM measurement was about 1.3 nm. The nanosheet itself showed visible blue luminescence under excitation at 285 nm at room temperature. The luminescence property of the nanosheet was largely sensitive to the change in the surface environment such as adsorption of H+ and/or OH-.

Original languageEnglish
Pages (from-to)8956-8957
Number of pages2
JournalJournal of the American Chemical Society
Issue number29
Publication statusPublished - Jul 25 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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