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

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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).
LanguageEnglish
Pages196-199
Number of pages3
JournalChemical Physics Letters
Volume417
DOIs
Publication statusPublished - 2 Nov 2005

Fingerprint

Strontium
niobates
Barium
Full width at half maximum
doped crystals
strontium
barium
Photoluminescence
Ions
photoluminescence
Bandwidth
Crystals
Cryogenics
bandwidth
ions
cryogenic temperature
Infrared radiation
Defects
Chemical analysis
defects

Keywords

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

Cite this

Han, T.P.J. ; Jaque, F. ; Jaque, D. ; Ivleva, L. / Photo-luminescence studies of strontium barium niobate crystals doped with Cr3+ ions. In: Chemical Physics Letters. 2005 ; Vol. 417. pp. 196-199.
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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).",
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Photo-luminescence studies of strontium barium niobate crystals doped with Cr3+ ions. / Han, T.P.J.; Jaque, F.; Jaque, D.; Ivleva, L.

In: Chemical Physics Letters, Vol. 417, 02.11.2005, p. 196-199.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Photo-luminescence studies of strontium barium niobate crystals doped with Cr3+ ions

AU - Han, T.P.J.

AU - Jaque, F.

AU - Jaque, D.

AU - Ivleva, L.

PY - 2005/11/2

Y1 - 2005/11/2

N2 - 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).

AB - 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).

KW - photo-luminescence

KW - strontium barium niobate crystals

KW - Cr3+ ions

KW - nanoscience

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