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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


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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