Photo-luminescence studies of strontium barium niobate crystals doped with Cr3+ ions

T.P.J. Han, F. Jaque, D. Jaque, L. Ivleva

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper reports the photo-luminescence spectroscopic results of Strontium-Barium-Niobate, Srx,Ba1xNb2O5 (SBN, x = 0.61 for near congruent composition) crystals doped with Cr2O, at cryogenic temperature (20 K). The experimental results reveal the need of reassignment of the Cr3+ ions defect centres in this material. For first time, a broad emission band in the near infrared region centred at ca. 950 nm is reported. This emission band has micro-seconds decaytime constant and a FWHM band-width > 1700 cm1 and has been ascribed to the vibronically assisted 4T2 ! 4A2 transition. A much narrower emission band centred at ca. 764 nm with milli-seconds decaytime constant and a FWHM band-width of ca. 170 cm1 is correlated to the 2E ! 4A2 radiative transition (R-line).
Original languageEnglish
Pages (from-to)196-199
Number of pages3
JournalChemical Physics Letters
Volume417
DOIs
Publication statusPublished - 2 Nov 2005

Keywords

  • photo-luminescence
  • strontium barium niobate crystals
  • Cr3+ ions
  • nanoscience

Fingerprint Dive into the research topics of 'Photo-luminescence studies of strontium barium niobate crystals doped with Cr3+ ions'. Together they form a unique fingerprint.

  • Cite this