Quantum size effect of lead iodide nanoparticles formed by a Langmuir-Blodgett technique

Tetsuya Yamaki, Keisuke Asai, Kenkichi Ishigure, Kazuhiro Ema, Hiroyuki Yaguchi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Nanoparticles of lead iodide (PbI2) were prepared by exposure of Langmuir-Blodgett (LB) films of lead arachidate to hydrogen iodide. The photoluminescence (PL) spectrum of the nanoparticles consisted of three bands: an exciton band and two low-energy bands associated with stoichiometric and structural defects. The center of the exciton band was blue-shifted due to a quantum size effect. The PL spectra drastically changed when the temperature increased.

Original languageEnglish
Pages (from-to)225-228
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume337
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • Langmuir-Blodgett (LB) method
  • Lead iodide (PbI)
  • Nanoparticles
  • Photoluminescence (PL)
  • Quantum size effect

ASJC Scopus subject areas

  • Condensed Matter Physics

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