Luminescence of silica glass containing aluminum oxide

6533b861fe1ef96bd12c42fa

RESEARCH PRODUCT

Luminescence of silica glass containing aluminum oxide

J. Jansons Anatoly N. Trukhin K. Truhins

subject

Alkali ions Electrolysis Materials science Silica glass Silicon Doping Analytical chemistry chemistry.chemical_element Mineralogy Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention chemistry Impurity law Materials Chemistry Ceramics and Composites Luminescence Aluminum oxide

description

Abstract Optical properties of silica glass with different doping of Al 2 O 3 up to 1.5 mol% were studied. Alumina stimulates creation of a luminescence centers with specific band at 3.3 eV. A new band at 8.2 eV appears in luminescence excitation spectra. There is transport of energy to other luminescence centers associated with an impurity (Ag, Ce) at this energy. Alumina stimulates creation of E′ centers under γ-irradiation beside trapped hole on AlO 4 tetrahedron as well as creation of a silicon related oxygen deficient center (SiODC) under cathodoexcitation. Visually, the samples look inhomogeneous even after γ-irradiation. The explanation could be heterogeneity of the samples. Alumina doped samples contain alkali ions, which were revealed with the use of silver exchange electrolysis experiments.

year	journal	country	edition	language
2004-11-01	Journal of Non-Crystalline Solids

https://doi.org/10.1016/j.jnoncrysol.2004.08.100

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