Resonance effects of Wannier-Frenkel excitons in luminescence properties of layered perovskite compounds (C6H5CH2NH 3)2PbClxBr4-x

Katsuhiko Nagao, Naoki Kawano, Masanori Koshimizu, Keisuke Asai

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

To analyze the luminescence properties under resonance between inorganic-organic layers, (C6H5CH2NH 3)2PbClxBr4-x thin films was fabricated. The Wannier exciton level in inorganic layer has been tuned to triplet excited levels in benzylamine in layered perovskite-type compounds by changing the halogen composition in the inorganic layer. When the Wannier exciton level was higher than the triplet state of benzylamine, energy transfer from the former to the latter occurred. The phosphorescence peak at 3.59 eV was sharpened and enhanced in the films with x = 3.75 and 3.80, and this effect can be ascribed to the enhancement of an electronic transition due to the resonance between the organic and inorganic layers.

Original languageEnglish
Article number02BC21
JournalJapanese journal of applied physics
Volume53
Issue number2 PART 2
DOIs
Publication statusPublished - 2014 Feb 27

ASJC Scopus subject areas

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

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