Photoluminescence properties of anodic alumina for application in optical sensors using SERS

I. V. Gasenkova; N. I. Mukhurov; S. P. Zhvavyi

doi:10.1117/12.886464

9 May 2011 Photoluminescence properties of anodic alumina for application in optical sensors using SERS

I. V. Gasenkova, N. I. Mukhurov, S. P. Zhvavyi

Proceedings Volume 8073, Optical Sensors 2011; and Photonic Crystal Fibers V; 807328 (2011) https://doi.org/10.1117/12.886464
Event: SPIE Optics + Optoelectronics, 2011, Prague, Czech Republic

Abstract

The results of optical properties study of porous aluminum oxide films, fabricated by anodizing in a water solution of a sulfuric acid and modified by thermal annealing on air at temperature T≥800°C are reported. On the basis of the comparative analysis of the received data it is shown that a photoluminescence in near UV and visible regions for aluminum oxide anodized in a sulfuric acid solution originates from the divacancies of oxygen (F₂, F⁺₂ and F²⁺₂ centers) and sulfates - ions do not render essential influence on luminescent properties AOA in researched spectral area. For samples annealed at T = 1300 °C, intensive narrow strips determined *see abstract on paper* by the radiative transitions (²E → ⁴A₂) in ions of Mn4+ (678 nm) and Cr³⁺ (694 nm), replacing ions of Al³⁺ in octahedral positions of α-Al₂O₃

Citation Download Citation

I. V. Gasenkova, N. I. Mukhurov, and S. P. Zhvavyi "Photoluminescence properties of anodic alumina for application in optical sensors using SERS", Proc. SPIE 8073, Optical Sensors 2011; and Photonic Crystal Fibers V, 807328 (9 May 2011); https://doi.org/10.1117/12.886464

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