Absorption and photochromic effects related with chromium in bismuth tellurite - Bi2TeO5

I. Földvári, Á Péter, L. A. Kappers, R. H. Bartram, R. Capelletti

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2 Citations (Scopus)


The new nonlinear optical material, Bi2TeO5, exhibits interesting photorefractive properties including a long-lived (years) signal component. Cr dopant enhances the photosensitivity of the crystal. The photochromic effect in the Cr-doped samples is related to Cr6+ → Cr5+ charge transition. The absorption spectra of the different Cr valence states are interpreted and the kinetics of the photochromic process is discussed.

Original languageEnglish
Pages (from-to)231-234
Number of pages4
JournalMaterials Science Forum
Publication statusPublished - Dec 1 1997



  • Absorption
  • BiTeO:Cr Crystals
  • Cr
  • Cr
  • Photochromic Effect

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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