Image charge effect on two-dimensional excitons in an inorganic-organic quantum-well crystal

Kenichiro Tanaka, Takayuki Takahashi, Takashi Kondo, Tsutomu Umebayashi, Keisuke Asai, Kazuhiro Ema

研究成果: Article査読

158 被引用数 (Scopus)

抄録

We report a clear experimental evidence of the image charge effect on excitons in the optical and electroabsorption spectra of an inorganic-organic quantum-well crystal (C 6H 13NH 3) 2PbI 4. The ns (n ≥ 2) Wannier series are ideal two-dimensional excitons whose binding energies are enhanced by both the spatial confinement and image charge effects. Exceptionally large binding energy of the 1s exciton (361 meV) is also due to the prominent image charge effect. We also observed unique blueshifts of the 1s excitons under the electric field perpendicular to the quantum-well layers, for which we demonstrated with calculations that the image charge effect plays a significant role.

本文言語English
論文番号045312
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
71
4
DOI
出版ステータスPublished - 2005 1月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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