UV luminescence of F-centers in aluminum oxide

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

Division for Materials Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

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 language	English
Title of host publication	Physica Status Solidi C: Conferences
Pages	527-530
Number of pages	4
Volume	2
Edition	1
DOIs	https://doi.org/10.1002/pssc.200460225
Publication status	Published - 2005

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ASJC Scopus subject areas

Condensed Matter Physics

Cite this

Surdo, A. I., Kortov, V. S., Pustovarov, V. A., & Yakovlev, V. Y. (2005). UV luminescence of F-centers in aluminum oxide. In Physica Status Solidi C: Conferences (1 ed., Vol. 2, pp. 527-530) https://doi.org/10.1002/pssc.200460225

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title = "UV luminescence of F-centers in aluminum oxide",

abstract = "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.",

author = "Surdo, {A. I.} and Kortov, {V. S.} and Pustovarov, {V. A.} and Yakovlev, {V. Yu}",

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AU - Surdo, A. I.

AU - Kortov, V. S.

AU - Pustovarov, V. A.

AU - Yakovlev, V. Yu

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

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U2 - 10.1002/pssc.200460225

DO - 10.1002/pssc.200460225

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Access to Document

10.1002/pssc.200460225