Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
146 0 |
SM ISO690:2012 URSACHI, Veaceslav, LAIR, Virginie, ZIVKOVIC, Ljiljana S., CASSIR, Michel, RINGUEDE, Armelle, LUPAN, Oleg. Optical properties of Sm-doped ceria nanostructured films grown by electrodeposition at low temperature. In: Optical Materials, 2012, vol. 34, pp. 1897-1901. ISSN 0925-3467. DOI: https://doi.org/10.1016/j.optmat.2012.05.026 |
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Optical Materials | |
Volumul 34 / 2012 / ISSN 0925-3467 | |
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DOI:https://doi.org/10.1016/j.optmat.2012.05.026 | |
Pag. 1897-1901 | |
Rezumat | |
Nanostructured undoped and samarium doped ceria thin nanocolumnar films are electrodeposited onto (FTO) glass substrates at low-temperature (30°C) with a subsequent thermal annealing at 600°C for 1 h. Films are obtained from mixed Sm3+/Ce3+ aqueous nitrate solutions, applying a -0.8 V/(SCE) potential for 1 h. Cubic fluorite type ceria nanostructured films of high crystal quality are synthesized as confirmed by X-ray diffraction and Raman spectroscopy. SEM analysis demonstrates that doping with Sm improves the quality of the film with respect to crack formation. The incorporation and activation of the Sm3+ ions in the ceria host as well as the Stark splitting of the manifolds responsible for emission in the red-orange spectral range are investigated by means of photoluminescence spectroscopy. |
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Cuvinte-cheie Ceria, doping, Electrodeposition, Luminescence |
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