UV luminescence of F-centers in aluminum oxide

A. I. Surdo, V. S. Kortov, V. A. Pustovarov, V. Yu Yakovlev

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Citations (Scopus)


Time-resolved spectra of the luminescence in oxygen-deficient α-Al 2O 3 crystals were studied using synchrotron radiation. The UV luminescence with hv = 3.26 eV and τ = 1.6 ns was detected in addition to the known slowly relaxing component (hv = 3 eV, τ = 34 ms) of the emission transition of the F-center under excitation near 6 eV. It is observed only at T ≤ 80 K in spectra, which are measured using the orientation of the polarized excitation light approaching E⊥C 3. Three bands at 5.28, 5.90 and 6.41 eV are discernible in the time-resolved spectrum of the luminescence (hv = 3.26 eV) excitation at T = 8 K.

Original languageEnglish
Title of host publicationPhysica Status Solidi C: Conferences
Number of pages4
Publication statusPublished - 2005

ASJC Scopus subject areas

  • Condensed Matter Physics

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