VUV spectroscopy of pure and Sm2+ doped SrFCl crystals

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Abstract

The creation and relaxation of electronic excitations in pure crystalline SrFCl and Sm2+ doped SrFCl were investigated using vacuum ultraviolet (VUV) spectroscopic methods. In the emission spectra of pure SrFCl and SrFCl: Sm2+ a strong emission band in the vicinity of 4.7 eV was detected, connected to self-trapped exciton (STE) having a Cl-2(-) core. The threshold for creation of STE was detected at 8.5 eV in the excitation spectrum of pure SrFCl and at 7.6 eV for Sm2+ doped SrFCI. It was demonstrated that the excitation spectrum of Sm2+ emission is determined with direct excitation of a Sm2+ center below 7.6 eV and with excitation of the SrFCl host above 7.6 eV. (C) 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Detaljer

Författare
  • V Kisand
  • R Kink
  • I Kink
  • R Jaaniso
  • Indrek Martinson
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Fysik
Originalspråkengelska
Sidor (från-till)246-250
TidskriftPhysica Status Solidi. B: Basic Research
Volym239
Utgivningsnummer1
StatusPublished - 2003
PublikationskategoriForskning
Peer review utfördJa