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Luminescence life time and time-resolved spectroscopy of Cr3+ ions in strontium barium niobate

Han, T P J and Jaque, F and Jaque, D and Garcia-Sole, J and Ivleva, L (2006) Luminescence life time and time-resolved spectroscopy of Cr3+ ions in strontium barium niobate. Journal of Luminescence, 119. pp. 453-456. ISSN 0022-2313

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Abstract

This paper reports on the photo-luminescence spectroscopic results of congruent strontium-barium-mobate (SBN) crystals doped with Cr2O, at cryogenic temperature (20 K). The experimental results reveal the need of re-assignment 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 band-width full-width at half-maximum (FWHM) larger than 1700 cm(-1) and has been ascribed to the vibronically assisted T-4(2) -> (4)A(2) transition. A much narrower emission band centred at ca. 764 nm with milli-seconds decaytime constant and a FWHM band-width of ca. 170 cm(-1) is correlated to the E-2 -> (4)A(2) radiative transition (R-line). (c) 2006 Elsevier B.V. All rights reserved.

Item type: Article
ID code: 31040
Keywords: crystals, luminescence, photoluminescence, congruent, Optics. Light, Biochemistry, Biophysics, Atomic and Molecular Physics, and Optics, Chemistry(all), Condensed Matter Physics
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 21 Jun 2011 13:26
    Last modified: 05 Sep 2014 08:50
    URI: http://strathprints.strath.ac.uk/id/eprint/31040

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