Optical properties of Wannier excitons in closely located quantum wells in organic-inorganic layered perovskite-type compounds

研究成果: Article

抜粋

We analyzed the optical properties of Wannier excitons in closely located quantum wells in organic-inorganic layered perovskite-type compounds. In the spectra of C n H2 n +1NH3X (n = 2, 3, or 4; X = Cl or Br), we observed absorption bands attributed to Wannier excitons. In the case of (C2H5NH3)2PbBr4, two bands were observed in the absorption and luminescence spectra. The two bands are attributed to split Wannier exciton levels arising from the interactions of closely located neighboring quantum wells. Such a split was not observed in the chloride-containing perovskite. This result indicates that the halogens in the inorganic layers have a significant effect on the interactions between the neighboring inorganic layers.

元の言語English
記事番号02CA01
ジャーナルJapanese journal of applied physics
57
発行部数2
DOI
出版物ステータスPublished - 2018 2

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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