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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access February 20, 2011

Sensitizing of Sm3+ fluorescence by silver dopant in the TiO2 films

Leonid Dolgov, Valter Kiisk, Valter Reedo, Siim Pikker, Ilmo Sildos and Jaak Kikas
From the journal Open Physics

Abstract

Composite material based on a TiO2 matrix doped with Sm3+ ions and co-doped with silver was investigated. Samarium ions together with nano- and micro-aggregates of silver were incorporated into the titanium alkoxide during the sol-gel process. Samarium ions were excited either directly (λ exc = 488 nm) or through the TiO2 host (λ exc = 355 nm). It was revealed that samarium fluorescence (λ exc = 488 nm) in gelled TiO2 films is enhanced by up to 20 times in the vicinity of silver inclusions. Sensitizing and plasmonic mechanisms of enhancement in Sm3+ fluorescence are discussed.

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Published Online: 2011-2-20
Published in Print: 2011-4-1

© 2011 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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